Energy in New Zealand 2017 - MBIE
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ENERGY AND BUILDING TRENDS Energy in New Zealand 2016 CALENDAR YEAR EDITION 2017 Comprehensive information on and analysis of New Zealand’s energy supply, demand and prices
Energy in New Zealand 2017 provides annual information on and analysis of New Zealand’s energy sector and is part of the suite of publications produced by the Energy & Building Trends team of the Ministry of Business, Innovation & Employment (MBIE). The 2017 edition includes information up to the end of the calendar year 2016. Full data tables may be downloaded from the Energy in New Zealand webpage: www.mbie.govt.nz/info-services/sectors-industries/energy/energy-data-modelling/ publications/energy-in-new-zealand Prepared by: Important Acknowledgements Energy & Building Trends Use of this publication in paper or The authors are grateful to the Evidence, Monitoring & Governance electronic form implies acceptance of individuals, companies and the conditions of its release, which are organisations that provided information Ministry of Business, Innovation & that if the information is made available and gave generously of their time to Employment to others, its source must be assist with the work reported here. acknowledged as the Ministry of PO Box 1473, Wellington 6140 Authorship Business, Innovation & Employment New Zealand 2017 or by reference to the publication title and date. This publication was prepared by the Email: energyinfo@mbie.govt.nz Energy and Building Trends team of the Although every attempt has been made Ministry of Business, Innovation & © Crown Copyright 2017 to ensure the information is accurate, Employment. Principal contributors were ISSN 2324-5913 neither the Crown nor any Minister, Nathan Young, Maria Botes, Jeff Lean, employee or agent of the Crown: Hannah Talosaga, Michael Smith, Chris • warrants the accuracy, completeness Barnett and James Hogan. The authors or usefulness for any particular would like to thank New Zealand purpose of the information contained Petroleum & Minerals and the MBIE This work is licenced under a in this publication in paper or electronic Design team for their contribution to Creative Commons Attribution 4.0 form; or this report. International Licence. • accepts any liability for any loss or Availability damage, however caused, from the reliance on or use of that information, or arising from the absence of A free electronic version of this information or any particular publication can be downloaded from: information in this publication in paper www.mbie.govt.nz/info-services/ or electronic form. sectors-industries/energy/energy-data- modelling/publications/ ISSN 2324-5913 September, 2017 © Crown Copyright 2017 The material contained in this report is subject to Crown copyright protection unless otherwise indicated. The Crown copyright protected material may be reproduced free of charge in any format or media without requiring specific permission. This is subject to the material being reproduced accurately and not being used in a derogatory manner or in a misleading context. Where the material is being published or issued to others, the source and copyright status should be acknowledged. The permission to reproduce Crown copyright protected material does not extend to any material in this report that is identified as being the copyright of a third party. Authorisation to reproduce such material should be obtained from the copyright holders.
CONTENTS A. B. C. ENERGY ENERGY COAL OVERVIEW BALANCES 3 9 14 D. E. F. OIL AND GAS RENEWABLES ELECTRICITY 20 37 40
Quick facts for 2016 IV 1 petajoule (PJ) is enough energy in a year to: The Marsden Point refinery produced enough jet fuel Drive about or Power about 30,000 40,000 cars on regular petrol households with electricity to fly around the world roughly 1000 times New Zealand produced o Domestic transport enough energy to meet 82% accounts for of demand from oil products of its energy requirements o There were 2,535 The Dubai Crude Oil price averaged $41 USD/bbl electric vehicles in 2016, the lowest in over a decade registered in NZ at the end of 2016 All natural gas 75% is produced and consumed in the North Island, 86% of which comes 4 fields from just of coal production was in the South Island 85% of electricity 48% of natural gas was generated from renewable demand comes sources, a 35 year from the Chemical high Manufacturing industry
MINISTRY ENERGY INOF BUSINESS, NEW ZEALANDINNOVATION 2016 AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 A. ENERGY OVERVIEW 1 INTRODUCTION Energy is an essential part of the economic and social fabric of society. Energy consumption within a society is a function of economic activity, population, the structure of the economy, the climate, and energy resource availability. This section considers New Zealand’s whole energy system. The key data presented includes total primary energy supply and total consumer energy. Some energy sector performance indicators are also presented.
Snapshot of energy in 2016 Supply Transformation Demand Energy Supply Energy Demand 0.0% 1.0% unchanged from 2015 levels from 2015 levels Exports 19% in an environment of Transport demand 1.9% reaching a low international commodity prices new high in 2016 The largest contributor was Coal exports 12%, falling for diesel use for land transport the 4th year in a row Oil exports 22% Industrial demand 2.7% after Methanex returned to Production 2.4% from 2015 90% capacity levels because of lower oil and coal production Energy Intensity (MJ/$GDP) 1 continues to improve, it has improved by 1.2% Imports 5.4% from 2015 levels on average since 1990 mostly due to higher levels of diesel entering the country Improvements in Energy NZ’s energy self-sufficiency intensity have been driven by fell to 78% because of lower sustained economic growth production and higher imports The statistical difference between calculated energy demand and observed energy demand has been apportioned proportional based on the in the Commercial Sector observed demand in each sector. Renewable energy was 40% On average the Commercial Energy Transformation sector use about 8% the of energy supply in 2016 amount of energy the This produced industrial sector 2 uses to Hydro supply 5.6%, while 70 PJ of petrol NZ Refinery intake was 252 PJ produce $1 of GDP 84 PJ of diesel geothermal and other renewable in 2016 2.1% from 2015 levels 27 PJ of fuel oil 1. Energy use per dollar of GDP supply fell 53 PJ of Aviation Fuel 2.Excludes Chemical and Metals industries that have a small number New Zealand has the of very heavy energy users 149 PJ of electricity was generated 85% of the electricity generated 4th highest in 2016 0.5% from 2015 levels was renewable, a 35 year high renewable share in the OECD This was due to high hydro generation
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 3 Energy Demand Consumer energy demand up 1.0% from 2015 levels, led by higher Industrial and Transport demand Figure A.1: Consumer energy demand by sector 600 500 400 Gross petajoules 300 200 100 0 1990 1996 2002 2008 2014 Residential Commercial and Public Services Agriculture, Forestry and Fishing Industrial Transport Consumer energy demand and also drove a 8.9% years and continues to grow continues to rise, up 5.9 PJ increase in non-energy alongside growth in the for the fifth consecutive year use of gas.1 Excluding the New Zealand economy. in a row. Chemicals sector, demand by Demand by the Agriculture, all other Industrial sectors Industrial demand was a Forestry and Fishing sector stayed at similar levels to major contributor to growth offset the increases in recent years. in consumer energy demand, consumer energy demand, up 2.7% (5.5 PJ) in 2016. Most Transport energy demand falling by 6.5% (2.2 PJ) of this increase came from was up 1.9% (4.1 PJ) driven in 2016 and down for all higher demand in the by growth in land transport fuel types. The fall in Chemicals sector, where demand. Both petrol and this sector was driven Methanex returned to near diesel use for land transport by lower electrical irrigation full capacity after experiencing increased over the year, up demand due to higher mechanical issues in 2015. 2.4% and 2.6% respectively. rainfall, and less heating Energy use in the Chemicals Diesel use for land transport demand due to warmer sector rose 14% over the year, has been trending up for many temperatures. 1 Non-energy use refers to the use of fuels to produce non-energy products. This mainly consists of natural gas being used to produce methanol and urea, and oil being used to produce products such as bitumen for roading.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 4 Energy Supply Primary energy supply remained unchanged from 2015 levels at 908 PJ Supply = Production + Imports – Exports – Stock change Energy supply growth was flat as higher imports and lower exports were offset by a fall in energy production. Figure A.2: Total primary energy supply by fuel 900 800 700 600 Gross petajoules 500 400 300 200 100 0 1974 1980 1986 1992 1998 2004 2010 2016 Coal Gas Hydro Oil Geothermal Waste Heat Other Renewables Exports fell 19% to their lowest level since 2005 Figure A.3: Energy exports 200 Gross petajoules 150 100 50 0 1990 1995 2000 2005 2010 2015
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 The fall in exports was due National energy production 4.6% in 2016 because of 5 to a 15% fall in the production fell 2.4% because of large higher demand from the of tradable commodities. falls in coal and crude oil Chemicals sector. production Crude oil exports fell 22% Higher imports saw due to a 15% fall in production New Zealand’s energy over the year. Production New Zealand self-sufficiency fall to 78% was down in 2016 with Maari experiencing a shutdown produced enough Energy imports rose 5.4% over the year mainly because at the end of the year. energy to meet of higher volumes of diesel 78% At the same time, fields being imported into the experience natural decline country. Oil imports reached which means production with their highest level on record, fall further unless discoveries up 5.4% or 3.2 million barrels, are made or contigent driven by a 41% increase in resources are developed. diesel imports. Increased Coal exports fell to their of its energy imports saw New Zealand’s lowest level since 1998 self-sufficiency fall from 81% alongside continued soft requirements to 78%. Self-sufficiency international coking coal indicates the proportion prices that has seen overall of New Zealand’s energy Energy production fell 17.5 PJ production fall in New Zealand. requirements that can be met to 719 PJ in 2016. This was due Production of bituminous coal by domestic production. to falls in coal and crude oil (used for coking), 98% of production explained in the which is exported, fell 14% previous section. In contrast over the year its 3rd gas production increased consecutive annual fall. Energy Transformation The conversion of primary energy to other forms flat (down 0.1 PJ) as a result of of energy fell 5.0% steady production at the Glenbrook steel mill during Electricity generation fell electricity usage in periods the year. 0.5% because of warmer and of typically high demand wetter weather. The share of during the year reducing Output by the Marsden Point electricity generation from the need for coal- and refinery fell 0.4% to 240 PJ renewables reached a 35 year gas- fired generation. (or 40 million barrels). This high at 85%. This was due to was driven by a fall in diesel Fuel used for other strong hydro inflows resulting output (down 9.5%) with transformation, including in a 5.6% increase in hydro output of other fuels up coal used for steel generation, and lower compared to 2015. manufacturing, was relatively
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 6 Energy Indicators National energy intensity has improved by an average of 1.2% p.a. since 19902 Figure A.4 National energy intensity New Zealand’s 4 energy intensity is MJ per dollar of GDP 20% 3 2 1 higher than the 0 1990 1996 2002 2008 2014 OECD average Figure A.5: Energy intensity for specific sectors 12 10 MJ per dollar of GDP 8 6 4 2 0 1990 1996 2002 2008 2014 Agriculture, Forestry and Fishing Commercial (excl. Transport) Chemicals & Metals Industrial (excl. Chemicals & Metals) 2 National energy intensity is calculated as total energy used in the economy divided by total GDP of the economy.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 Energy intensity is an indicator GDP, compared to 57% in 1990. compositional changes within 7 of how much energy is being This shift towards a more sectors, energy efficiency, used to produce a dollar of service-based economy has or a combination of the two. Gross Domestic Product (GDP). meant that the products and This indicator improves if New services we provide as a Residential energy Zealand uses less energy to country take less energy to demand fell despite produce a dollar of GDP, so a produce. continued population continued fall in this indicator shows improvement over time. Another contributing factor growth has been the improving trend Residential energy use fell The improving trend has been in energy intensity for each 2.2% in 2016. Electricity mainly driven by higher sector. Energy intensity for accounts for 70% of residential economic growth in the the commercial sector has energy demand, and the fall in Commercial sector, a sector improved over time 1.3% p.a. this sector was driven by that is much less energy on average since 1990 because households using less intensive than other sectors. GDP for the Commercial sector electricity particularly in In 2016, the Commercial sector has increased at twice the rate periods when demand typically used 0.37 MJ/dollar of GDP, of its energy use. The intensity peaks in the year — autumn 8.1% of what is used by the of energy use in the industrial 4 and winter. Average residential Industrial sector (excluding sectors has also improved over electricity use per ICP5 was Chemicals and Metals) for time. Energy use in this sector down 2.8% from 2015 levels, every dollar of GDP created. has been relatively flat since and has been trending down Although energy intensity has the 2008 recession while since 2009. The downward been improving over time GDP for the sector has been trend in energy use per ICP New Zealand still has the 7th increasing. As a result, the may be due to energy highest energy intensity in the industrial sector’s energy efficiency improvements, OECD – 20% higher than the intensity has improved by an demographic changes, OECD average.3 average of 0.7% since 1990. weather variations, or a Improvements in energy combination of these factors. The Commercial sector has intensity may be due to risen to account for 62% of Figure A.6: Residential energy use per capita 16000 Gross megajoules per capita 15000 14000 13000 1991 1996 2001 2006 2011 2016 3 Latest data available from the International Energy Agency https://www.iea.org/ 4 The Chemical and Metals sectors have been separated out from the Industrial sector as they have a small number of very heavy energy users. 5 An Installation Control Point (ICP) is a customer connection.
MINISTRY ENERGY IN OF NEWBUSINESS, ZEALANDINNOVATION 2016 AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 B. ENERGY BALANCES 8 INTRODUCTION New Zealand’s energy production derives from both renewable and non-renewable sources. New Zealand imports and exports fossil fuels, which generate export revenue, but also results in a dependency and vulnerability to energy commodity prices that vary according to international supply and demand factors outside of New Zealand’s control. The energy balance tables reflect how energy supply and demand by sector varies by energy fuel type. Domestic energy supply is derived from either indigenous production or imported from overseas sources. In turn, fuel types can be transformed into different forms of energy, at the cost of losses and inefficiencies which vary by transformation process. Supply, demand, losses and inefficiencies are reflected in balanced energy supply and demand tables. Both the energy supply and demand dimensions of the energy balance tables are derived from surveys spanning different sources. An imbalance exists between the value of consumer energy calculated from supply, and the value of consumer energy observed from statistical measure.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 9 Interpretation of Table B.1: Default Electrical Transformation Factorsa Energy Balance Fuel Default Efficiency Tables Biogas 30% Supply Coal 30% Total primary energy is the Gas (Single Cycle)b 30% amount of energy available for Geothermalc 15% use in New Zealand. Much of it Hydro 100% is converted into other forms Oil 30% of energy before it is used. By convention, fuel used for Waste Heat 15% international transport is Wind 100% excluded from total primary Wood 25% energy. Indigenous gas production does not include gas that is flared, reinjected, particularly in thermal before consumption, liquid or LPG extracted. The primary electricity generation, as biofuel also appears in Energy energy figures presented are much energy is lost as heat. Transformation under Fuel actual data, except for some Production. that go into electricity Transformation losses in generation as detailed under electricity generation are Losses and own use in the energy transformation. derived from the net energy balances include losses electricity generated, with the before and after Energy transformation actual fuel input being used transformation, losses and where available and the own use in production, Includes generation of conversion factors shown transmission and distribution electricity (including in Table B.1 used otherwise. losses, electricity industry cogeneration), oil production Fuel input to biogas, hydro, own use free of charge, and oil (including refinery operations wind and waste heat are fully industry losses and own use and the manufacture of estimated. Quarterly figures (which includes distribution synthetic fuel from natural for electricity generation are tankage losses, stocks, gas – Methanex ceased made up of actual data from accounts adjustment and own methanol to petrol production major generators and the consumption). Transformation in April 1999) and other Electricity Authority. losses are excluded. transformation, primarily Estimates are made where steel production. Non-energy use is primary actual data are unavailable energy used for purposes In the Energy Transformation at the time of publishing. other than combustion, section of the balance tables, Liquid biofuel production e.g. bitumen used in road “energy in” is shown as (bioethanol and biodiesel) construction, and natural gas negative values and “energy appears as renewable energy used as chemical feedstock in out” as positive values in the supply in the energy balance the production of methanol appropriate fuel columns. tables. As bioethanol and and ammonia/urea. Transformation of energy from biodiesel are generally blended one form to another always with motor petrol and diesel results in conversion losses, a Default efficiencies are only used where real data is unavailable. b For combined cycle plants, the assumed efficiency is 55%. Currently, however, actual fuel input data are collected for all combined cycle plants. c Geothermal is predominantly based on real plant steam data and uses a 15% efficiency where these are unavailable.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 10 Treatment of Solar Demand energy for on-road, rail, Photovoltaic Panels Consumer energy is the sea and air transport in the amount of energy consumed transport sector, these sectors Estimates of the amount of by final users. It excludes follow the Australia New electricity generated using energy used or lost in the Zealand Standard Industrial solar photovoltaics (PV) are process of transforming Classification 2006 definitions. included in the energy balance tables in this edition of Energy energy into other forms and Annual figures presented for in New Zealand. The total in bringing the energy to the consumer energy (observed) primary energy supply of solar final consumers. For example, are actual data except for is the sum of the direct use of natural gas is a primary energy thermal fuels used for solar thermal (i.e. for hot water source (see Total Primary cogeneration in the industrial heating), and the amount of Energy Supply), some of which and commercial sectors and solar energy directly converted is transformed into electricity, biogas, wastes and wood. into electricity via PV panels. of which some is lost in Estimates of on-site Solar PV electricity generation transmission to consumers. cogeneration demand are is estimated using data on the Consumer energy statistics included in electricity end use. total installed capacity of can be either calculated from Where the energy end-use is grid-connected solar PV supply-side data or observed not available or confidential, installations in New Zealand , from usage data. the “unallocated” category and then converted to output Consumer energy (calculated) is used. using an assumed capacity factor of 14% (i.e. the solar forms the top half of the International transport panels produce their full energy balance tables and is includes international sea output 14% of the time). calculated as TPES less energy and air transport. It excludes Consumption of solar thermal transformation less non- coastal shipping, national is included in the demand energy use. air transport and all land section of the energy balance transport. Consumer energy (observed) table under Renewables – forms the bottom half of the Statistical differences Solar, whereas the energy balance tables and it shows the difference consumption of electricity represents reported demand between “consumer energy generated by solar PV panels in the agriculture, forestry and (calculated)” and “consumer appears under Electricity. Solar fishing; industrial; commercial; energy (observed)”. This PV consumption by sector is transport and residential difference is shown at the apportioned using data from sectors. With the exception bottom of the energy the Electricity Authority. of domestic/national use of balance tables.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 11
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 12 Table B.2: Energy Supply and Demand Balance, Calendar Year 2016 13 NATURAL RENEWABLES ELECTRICITY WASTE TOTAL COAL OIL Converted into GAS HEAT Petajolues using Bituminous Lignite Total Crudes/ LPG Petrol Diesel Fuel Av. Others Total Total Hydro Geothermal Solar Wind Liquid Biogas Wood Total Total Total Gross Calorific Values & Sub- Feed- Oil Fuel/ Biofuels stocks/ bitum. NGL Kero Indigenous Production 68.13 4.78 72.91 74.16 8.33 82.49 196.79 93.26 201.84 0.55 8.32 0.13 2.71 58.27 365.08 1.41 718.68 + Imports 10.16 0.00 10.16 245.19 1.20 44.16 47.51 - 9.84 5.90 353.80 363.96 – Exports 37.83 - 37.83 66.27 1.22 - - 5.10 - - 72.58 110.41 – Stock Change -6.94 0.10 -6.85 -1.56 0.00 2.03 2.23 4.60 -0.61 2.05 8.74 0.97 2.86 – International Transport 0.00 1.88 11.26 48.56 - 61.70 61.70 SUPPLY TOTAL PRIMARY ENERGY 47.40 4.69 52.09 254.64 8.30 42.13 43.40 -20.95 -38.10 3.85 293.27 195.82 93.26 201.84 0.55 8.32 0.13 2.71 58.27 365.08 1.41 907.68 ENERGY TRANSFORMATION -26.28 -0.29 -26.58 -252.55 -0.00 69.83 83.74 26.82 53.64 6.56 -11.96 -56.36 -93.26 -194.19 -0.19 -8.32 -0.13 -2.38 -4.66 -303.12 141.44 -1.41 -257.99 • Electricity Generation -4.84 - -4.84 -0.02 - -0.02 -37.76 -93.26 -192.49 -0.19 -8.32 -1.37 -295.62 148.97 -189.28 • Cogeneration -7.24 -0.25 -7.49 -12.88 -1.70 -1.01 -4.66 -7.37 7.77 -1.41 -21.38 • Fuel Production -252.47 69.79 83.87 26.81 53.59 13.80 -4.62 - -0.13 -0.13 -4.75 • Other Transformation -11.70 - -11.70 -11.70 • Losses and Own Use -2.50 -0.04 -2.54 -0.08 -0.00 0.04 -0.11 0.01 0.05 -7.24 -7.33 -5.72 -15.30 -30.89 Non-energy Use -10.41 -10.41 -58.15 -68.56 CONSUMER ENERGY (calculated) 21.12 4.40 25.51 2.09 8.30 111.96 127.14 5.87 15.54 - 270.90 81.31 7.65 0.36 - - 0.33 53.62 61.96 141.44 - 581.12 Agriculture, Forestry 1.49 0.02 1.52 0.08 1.53 15.97 1.38 - 18.97 1.61 0.60 0.60 9.23 31.93 and Fishing • Agriculture 1.48 0.02 1.51 0.08 1.42 11.29 - - 12.80 1.61 0.60 0.60 8.80 25.31 • Forestry and Logging 0.01 - 0.01 0.01 3.32 - - 3.33 0.00 0.33 3.66 • Fishing - - - 0.10 1.37 1.38 - 2.85 - 0.10 2.95 Industrial 19.80 3.78 23.59 3.31 0.41 15.20 1.02 - 19.93 65.74 4.51 0.05 45.50 50.06 52.72 212.03 • Mining - - - 0.00 2.74 - - 2.74 0.13 1.30 4.17 • Food Processing 13.71 3.76 17.48 - - - - - 15.46 9.07 42.00 • Textiles 0.08 - 0.08 0.56 0.35 0.99 • Wood, Pulp, Paper and 0.57 0.02 0.59 5.56 9.76 15.91 DEMAND Printing • Chemicals 0.00 - 0.00 39.18 2.90 42.08 • Non-metallic Minerals 3.06 - 3.06 1.52 1.04 5.62 • Basic Metals 0.01 - 0.01 - - - - - 2.43 23.23 25.68 • Mechanical/Electrical 0.00 - 0.00 0.28 0.62 0.90 Equipment • Building and - - - 0.04 4.52 0.03 - 4.59 0.49 1.43 6.50 Construction • Unallocated 2.35 - 2.35 3.31 0.36 7.94 0.99 - 12.61 0.13 4.51 0.05 45.50 50.06 3.03 68.18 Commercial 0.68 0.55 1.23 1.48 0.45 4.82 0.04 - 6.79 8.12 2.25 0.28 2.53 34.10 52.77 Transport 0.00 - 0.00 0.31 110.01 89.72 4.11 13.57 217.73 0.02 - - 0.22 217.97 Residential 0.18 0.16 0.34 3.22 0.05 0.12 - - 3.39 6.36 0.30 0.36 8.12 8.78 44.02 62.90 CONSUMER ENERGY (observed) 22.16 4.52 26.68 - 8.41 112.45 125.83 6.55 13.57 - 266.82 81.83 - 7.65 0.36 - 0.33 53.62 61.96 140.30 - 577.60 Statistical Differences -1.05 -0.12 -1.17 2.09 -0.11 -0.48 1.30 -0.68 1.96 - 4.08 -0.53 - - - - - - 1.14 - 3.53
MINISTRY ENERGY INOF BUSINESS, NEW ZEALANDINNOVATION 2016 AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 C. COAL 14 INTRODUCTION This section contains information about coal production (supply) and sales to consumers (demand). Information on coal is presented for the 2016 calendar year. Background information on New Zealand’s coal industry can be found on the New Zealand Petroleum and Minerals website: http://www.nzpam.govt.nz/cms/investors/our-resource- potential/minerals/coal MINING AREAS NORTH ISLAND SOUTH ISLAND Waikato West Coast Canterbury Otago Southland PRODUCERS* SOLID ENERGY OTHER PRODUCERS IMPORTS • Takitimu Coal • New Zealand Coal and Carbon • Birchfield Coal Mines • Cascade Coal • Puke Coal • Kaipoint Coal Co and about seven smaller producers CONSUMERS NZ Steel Overseas Markets Industry Genesis Steel Manufacture Export Commercial Electricity Residential Generation Domestic Consumers Note: Company names are listed without the suffixes Limited and New Zealand Limited where applicable.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 Figure C.2: Coal Energy Flow Diagram for 2016 15 Production Minus Exports Plus Imports Consumption 80 Losses and own use* Stock Change 60 Exports Opencast Coking Imports Electricity PJ 40 Underground Coking Opencast Bituminous Other Transformation Opencast 20 Sub-Bituminous Industrial Underground Sub-Bituminous Opencast Lignite Other† 0 * Includes use at production sites and distribution losses. † Includes commercial, residential, agriculture and transport.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 16 Coal Supply North Island – for the most in these areas is used part coal produced in the in the manufacture of Total coal supply fell 14% North Island is used in the dairy products. to 52 PJ (2.5 million tonnes) North Island, and in 2016 as a result of falling Closures of mines at the production fell 26%. The falling production destined for end of 2015 impacted 2016 trend in this area has been both the North Island production levels. The driven by less coal being used and international markets. underground Huntly East for electricity generation. mine was closed, while the West Coast – coal produced Strongman, Cascade and Coal production at a on the West Coast is mainly Escarpment opencast 25 for export to international mines were put into care markets. Production in this and maintenance primarily area fell 14%, its third annual in response to market fall in a row. West Coast conditions. production has been falling Solid Energy produced 68% alongside falling international year low coal prices. of national production in 2016, but has been operating under Rest of the South Island – voluntary administration since production in these remaining August 2015. The company’s Coal production fell 15% areas are mainly for domestic assets have recently been because of decreases in use. In contrast to falling sold to other coal companies, production in the North production in other areas, a process that was completed production in the South Island in August 2017. Island and West Coast outside of the West Coast New Zealand produced 73 PJ rose 10% over the year. This Exports fell 12% because (3.0 million tonnes) of coal in continues an upward trend in of lower production on 2016, the lowest annual production in this area over production since 1991 and the West Coast time. Coal is an important fuel a 15% fall from 2015. Coal for industry in the South Island In 2016, New Zealand exported production can be split into because unlike the North 38 PJ (1.2 million tonnes) of three geographic areas with Island there is no natural gas coal and imported 10 PJ (0.5 different economic drivers. source. A large portion of coal million tonnes). Coal exports fell for the fourth consecutive year in a row, and are now at their lowest level in 18 years. Figure C.3 Coal production by geographic area This is mainly been due to international coal prices falling 3 to low levels in 2012. Prices began to trend up at the end of 2016 but remain volatile. Coal is only exported from the West Coast, where most 2 of it goes to the India Million tonnes and Japanese markets. New Zealand exports mostly Bituminous coal (a coking coal) but does export smaller 1 amounts of thermal and specialist coals. 0 1998 2004 2010 2016 North Island West Coast Rest of South Island
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 Figure C.4: Bituminous coal exports 17 90 Gross petajoules 60 30 0 1989 1998 2007 2016 Coal Use ›› There has been strong The two remaining Huntly supply of renewables for Rankine units are the only Coal use has historically electricity generation. major electricity plant that been dominated by electricity New geothermal can be run on coal. They are generation. In recent years, generation has come important for New Zealand’s falling use of coal for security of electricity supply electricity generation has online in the last decade requirements in a dry year seen the Industrial sector that reduces the need for to meet winter energy and become the dominant user. baseload gas generation. peak demand requirements. In 2016 there was Although these units haven’t Coal used in electricity particularly strong been running on coal very generation fell 60% hydro inflows which often in recent years, a dry because of wetter saw the share of year could see coal use rise weather electricity generation above historical lows. In 2016 the amount of coal from renewable sources Other transformation used for electricity fell to reach a 35 year high. (including coal used as its lowest level since 1994. ›› Genesis Energy’s closure a reductant in steel There are several factors manufacturing) remained of two of its four coal/gas for the continued fall in coal at a similar level to recent Huntly Rankine units in being used for electricity years, down 1.2% from 2015. recent years, and running generation, including: the remaining units predominantly on gas. Figure C.5 Coal used for electricity generation 50 Gross petajoules 40 30 20 10 0 1990 1996 2002 2008 2014
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 18 Coal consumption up alongside higher production in the South Island Figure: C.6 Coal consumption by sector 30 Gross petajoules 20 10 0 1990 1996 2002 2008 2014 Industrial Agriculture, Forestry and Fishing Commercial (incl. Transport) Residential Coal consumption has been Resources More information on the relatively steady in recent New Zealand coal industry is New Zealand has extensive years, up 2.3% to 27 PJ available on the New Zealand coal resources, mainly in the (1.3 million tonnes) from Petroleum and Minerals Waikato and Taranaki regions 2015. The rise in coal website: http://www.nzpam. of the North Island, and the consumption sits alongside govt.nz/cms/investors/ West Coast, Otago and growing production in the our-resource-potential/ Southland regions of the South Island. The industrial minerals/coal. South Island. It has been sector contributed the most estimated that national to the rise in consumption, in-ground resources of up 4.4% over the period. Just all coal are over 15 billion under half of New Zealand’s tonnes, although 80% of coal use in 2016 was used in this is lignite in the South the Industrial sector, primarily Island. Sub-bituminous to generate heat for industrial and bituminous in-ground processes.6 Industrial coal use resources are around 4 billion is primarily for meat, dairy, and tonnes, but economic reserves cement, lime and plaster are much smaller. manufacturing. 6 For more data on process heat in New Zealand, see http://www.mbie.govt.nz/info-services/sectors-industries/energy/ energy-efficiency-environment/process-heat-in-new-zealand/data
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 Figure: C.7 Location of New Zealand coal resources and coal production in 2016 19 Hikurangi Northland Kamo Huntly Coalfield 25 kt SB Maramarua Waikato Huntly Waikare Rotowaro Coalfield Rotowaro 655 kt SB Kawhia Tihiroa Mangapehi Mokau Taranaki Waitewhena Ohura-Tangarakakau Buller Coalfield 991 kt B Buller Inangahua Nelson-Westland Reefton Garvey Creek Pike River Greymouth Greymouth Coalfield 192 kt B Malvern Hills Canterbury Mt. Somers St. Bathans Mine Production 2016 Ohai Coalfield kt = kilotonnes 342 kt SB Otago Roxburgh B = Bituminous SB = Sub-bituminous Ohai L = Lignite Kaitangata Southland Southland Lignites 0 200 km 311 kt L
MINISTRY ENERGY INOF BUSINESS, NEW ZEALANDINNOVATION 2016 AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 D. OIL AND GAS 20 INTRODUCTION This section contains information on New Zealand’s oil and gas industry, presented for the 2016 calendar year. Oil and gas reserves are presented first, followed by oil and gas supply and demand. More information on oil and gas exploration in New Zealand can be found on the New Zealand Petroleum and Minerals website: http://www.nzpam.govt.nz/cms/investors/our-resource-potential/ petroleum Percentage changes in this section are calculated based on petajoules. This controls for differences in the energy content of different oil product types, and gas produced from different fields. Liquified petroleum gas (LPG) data is presented in the Oil section.
MINISTRY ENERGYOFINBUSINESS, INNOVATION NEW ZEALAND 2016 AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 Oil and Gas OIL 21 Figure D.1: Oil market summary for the 2016 1 Ngatoro2 FIELDS 1.3% BY PRODUCTION Kowhai 1.1% Kupe Tui Maui Turangi Kapuni 9.5% 9.9% 7.0% 2.1% 1.8% Maari Pohokura McKee/Mangahewa Rimu Other3 35.6% 21.7% 6.2% 3.7% PRODUCERS Origin Energy 50% OMV 69% AWE 57.5% Shell (Exp) 48% Shell 83.75% Todd Energy Greymouth Origin Energy Shell 50% Oil Genesis Energy 31% Todd 16% NZOG 27.5% OMV 26% OMV 10% 100% 100% 100% Todd Energy Imports4 NZOG 15% Horizon 10% Pan Pacific 15% Todd Energy 26% Todd Energy Operator: Operator: Operator: 50% 6.25% Todd Energy Greymouth Origin Energy Operator: Shell Mitsui E&P 4% Cue Taranaki 5% Operator: AWE Operator: Shell Todd Oil Services Operator: Origin Energy Operator: OMV Operator: Shell Todd Oil Services McKee Blend5 REFINERS/ Refinery Feedstocks BLENDERS NEW ZEALAND REFINING COMPANY Owned by: BP, Mobil, Z Energy, and others Refined Products WHOLESALERS BP, Mobil , Z Energy Oil products are distributed via pipeline Gull (from the refinery only), coastal tanker and/or road DISTRIBUTORS Independent Distributors RETAILERS BP, Independent Mobil, Z Service Stations Gull CONSUMERS Exports Agriculture Transport Industrial Commercial Residential Company names are listed without the suffixes “Limited” and “New Zealand Limited” where applicable and subsidiaries are listed as the parent company. The companies are: AWE is Australian Worldwide Exploration Limited, Chevron is Chevron NZ (includes Caltex New Zealand Limited), Greymouth is Greymouth Petroleum Holdings Limited, Mitsui E&P is Mitsui E&P Australia Pty, ExxonMobil is ExxonMobil New Zealand Holdings (includes Mobil Oil New Zealand Limited), NZOG is New Zealand Oil and Gas, OMV is OMV New Zealand Limited (Österr Mineralöl Verwaltung), Origin Energy is Origin Energy New Zealand Ltd and Contact Energy (51% owned by Origin), Shell is Shell NZ Limited (includes Shell Exploration NZ Limited, Shell (Petroleum Mining) Energy Petroleum Holdings Limited, Energy Petroleum Investments Ltd, Energy Petroleum Taranaki Ltd and Taranaki Offshore Petroleum Company), TWN comprises the Tariki, Waihapa and Ngaere fields. Notes: 1 Ownership as at 31 December 2016. Tamarind Management ownership of AWE share of Tui took effect in early 2017. 2 Kaimiro, Ngatoro and Windsor fields were combined as a single permit area in 2010. All these fields are included here, as is Moturoa. 3 Includes Cheal, Sidewinder, Copper Moki, TWN, Surrey, Onaero and Puka fields, and Radnor well. Cheal and Sidewinder are owned by Tag Oil Limited. Surrey and Onaero are owned and operated by Greymouth Petroleum. Copper Moki is owned by New Zealand Energy Corp. TWN is jointly owned by New Zealand Energy Corp and L&M Energy, and operated by New Zealand Energy Corp. Puka is owned by Kea Petroleum Holdings and MEO Australia and operated by Kea Petroleum Holdings. 4 Crude and refined product are imported by the four large oil companies. Refined product is imported by Gull Petroleum. 5 Source: Shell NZ Limited.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 22 Figure D.2: Oil Energy Flow Summary for 2016 PJ CRUDE, CONDENSATE AND LPG → REFINERY → PETROLEUM PRODUCTS mmboe* Refinery Own Use Refinery Exports, Stock Change 60 Production and Statistical Output and LPG and Statistical and Imports Stock Change Exports Difference Supply Product Imports Difference Consumption Product Stock Change and 350 Statistical Difference Other Product Exports Non-energy Use Losses & LPG Own Use Diesel 50 Crude Oil and 300 Condensate International Transport Petrol Statistical Difference Agriculture Own Use 250 40 Industrial Aviation Fuel Other Imported Crude 200 Other 30 Fuel Oil 150 Domestic 20 Diesel Transport 100 10 50 Indigenous Production Petrol LPG 0 0 *Million barrels of oil equivalent.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 23 Oil supply natural gas liquids peaked in Oil production at its 2008 at 128.3 PJ. Since then lowest Production of crude oil production has fallen 42% to fell 15.1% because of 74.2 PJ. This is symptomatic of natural field exhaustion and diminishing production no further major fields having level from existing fields been identified since Tui Indigenous production of entered production in 2007. crude oil was down 15.1% for 2016, a 10 year low. This was Exports are down 22% influenced by a two month because of lower levels in a decade shutdown of the Maari field at the end of 2016 after a crack of production was discovered in the well Overall exports fell to 72.6 PJ head platform. The remaining because of lower production. Oil imports up 5% reduction can be attributed to The reduction in exports is because of higher inter-year variability and long a result of the reduction in output from Maari combined demand for diesel term field decline across many fields. Production from with long term field decline Despite increased existing fields continues to overall. consumption of diesel, trend down over time. New domestic refinery output of Zealand indigenous production diesel decreased 9.5% (8.8 PJ). of crude oil, condensate, Increased demand for diesel naphtha, and was met by higher imports, up 41% (13.8 PJ) from 2015 levels. Figure D.3: New Zealand annual oil production* Mangahewa Tui Maari, Kupe, and Kowhai 3000 Pohokura TarikiAhuroa Rimu Waihapa Turangi Ngatoro Cheal Kilotonnes 2000 McKee Kapuni Maui 1000 0 1978 1984 1990 1996 2002 2008 2014 *Field names indicate when the field started producing
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 24 Oil use Figure D.4: Oil imports by region of origin Oil consumption grew 2.2% because of higher domestic transportation 3000 Overall consumption was up 5.6 PJ in 2016 driven Million tonnes mainly by gains in the 2000 domestic transport sector, which was up 2.0% (4.2 PJ). The industrial sector grew by 7.5% (1.4 PJ), almost all 1000 of which was an increase in diesel consumption. Diesel consumption continues to grow, up 2.7% (3.3 PJ) 0 1978 1984 1990 1996 2002 2008 2014 alongside light and heavy commercial vehicle growth. Premium petrol consumption Asia Middle East Other also increased, up 7.9% in the past year. However, it is difficult to attribute this movement to any longer 9.3% (1.1 PJ), driven by strong refinery output of jet fuel, term trend. demand from international up 7.9% (3.9 PJ), and increased Jet fuel consumption also flights. The stronger demand imports of jet fuel, up 236% continues to increase, up for jet fuel has seen increased (6.6 PJ). Figure D.5: Oil products consumed for domestic transportation 200 150 Gross petajoules 100 50 0 1974 1980 1986 1992 1998 2004 2010 2016 Diesel Premium Petrol Regular Petrol Aviation Fuels Fuel Oil LPG
MINISTRY ENERGY INOF BUSINESS, NEW ZEALANDINNOVATION 2016 AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 Oil and Gas GAS 25 Figure D.6: Natural Gas Industry Summary for 2016 FIELDS 0.5% 15.2% 13.7% 0.6% 1.8% 4.7% 0.0% 3.4% 0.2% 0.0% BY PRODUCTION McKee Mangahewa Kupe Ngatoro2 Kowhai Turangi Onaero Other3 Cheal Sidewinder 0.6% 16.1% 13.1% 0.6 2.1% 5.3% 0.0% 0.1% 0.2% 0.0% 16.6% 4.5% 38.2% 0.4% Maui Kapuni Pohokura Rimu/Kauri ABOVE = GROSS 17.8% 4.9% 38.9% 0.3% BELOW = NET PRODUCERS Todd Taranaki Shell 83.75% Origin Energy 50% Shell 50% Greymouth Shell 48% Origin Energy TAG Oil 100% OMV 10% Genesis Energy 31% Todd Energy 100% Todd Energy 26% 100% 100% Todd Energy NZOG 15% 50% OMV 26% 6.25% Mitsui E&P 4% Operator: Operator: Operator: Operator: Operator: Shell Todd Operator: Operator: Operator: Cheal Todd Shell Todd Origin Energy Oil Services Greymouth Shell Origin Energy Petroleum WHOLESALERS Greymouth Vector Todd Energy Contact Energy Petroleum TRANSMITTERS HIGH PRESSURE FirstGas DISTRIBUTORS LOW PRESSURE Powerco Nova Energy Vector GasNet RETAILERS Genesis Energy Energy Online Nova Energy On-Gas Contact Energy GasNet Greymouth Gas Mercury Energy CONSUMERS Major users supplied Users supplied from Methanex Limited Ballance Agri-Nutrients Contact Energy directly from the distribution systems Limited transmission system Chemical methanol Genesis Energy Other industry, manufacture Ammonia/urea manufacture Methanex Mercury Energy commercial, Ballance Agri-Nutrients residential, New Zealand Steel Electricity generation transport (as CNG) Carter Holt Harvey Degussa Peroxide Fonterra Co-operative Todd Energy Refining NZ Tasman Pulp and Paper among others Company names are listed without the suffixes “Limited” and “New Zealand Limited” where applicable. AWE is Australian Worldwide Exploration Limited, Greymouth is Greymouth Petroleum Limited, Mitsui E&P is Mitsui E&P New Zealand Limited, NZOG is New Zealand Oil & Gas Limited, OMV is OMV New Zealand Limited, Contact Energy is Contact Energy Limited, Origin Energy is Origin Energy New Zealand Ltd and Contact Energy (51% owned by Origin), Pan Pacific is Pan Pacific Petroleum, Shell is Shell NZ Limited (includes Shell Exploration NZ Limited, Shell (Petroleum Mining) Co Limited, Energy Petroleum Holdings Limited, Energy Petroleum Investments Ltd, Energy Petroleum Taranaki Ltd, Energy Finance New Zealand Limited and Taranaki Offshore Petroleum Company), TWN comprises the Tariki, Waihapa and Ngaere fields, Todd Energy is Todd Energy Limited and includes Nova Gas, Vector is Vector Limited and includes OnGas, Wanganui Gas is Wanganui Gas Company Limited. Nova Energy is Nova Energy Limited. Notes: 1 Gas ownership as at year end 2016; excludes LPG. Does not show changes in ownership that occurred after 31 Dec 2016. 2 Includes Kaimiro, Windsor and Goldie wells. 3 Includes Maari, Tui, TWN, Copper Moki, Puka and Surrey fields. Maari is owned by OMV, Todd, Horizon, and Cue Taranaki and operated by OMV. Tui is owned by AWE, NZOG and Mitsui E & P and operated by AWE. TWN is owned by New Zealand Energy Corp and L & M Energy and operated by New Zealand Energy Corp. Copper Moki is owned by New Zealand Energy Corp. Surrey is owned and operated by Greymouth. Puka is owned by Kea Petroleum Holdings and MEO Australia and operated by Kea Petroleum Holdings.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 26 Figure D.7: Natural Gas Flow Summary for 2016 PJ PRODUCTION → PROCESSING & TRANSMISSION → STOCK CHANGE → CONSUMPTION Mm3 5000 200 LPG Extracted Losses and Own Use Gas Flared 4500 Gas Reinjected Statistical Difference Transmission Losses Stock Change Pohokura 4000 Non-Energy Use 150 3500 3000 Maui Electricity Generation 2500 100 Cogeneration 2000 Kupe 1500 Kapuni 50 Industrial Mangahewa 1000 Turangi 500 Kowhai Maari Commercial* McKee Other Residential 0 0 * Includes transport, agriculture, forestry and fishing.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 27 Gas use bounced back in 2016 with Non-energy use of gas Methanex returning to near rose 16% after Methanex Gas use increased in 2016 full capacity after experience returned to normal largely because of bounce mechanical issues in 2015. back in consumer demand production levels and non-energy use from The long term trend in Movements in gas use this the Chemical Manufacturing Commercial, Industrial and year were heavily influenced sector. However, gas use for Residential sectors is largely by Methanex production, with electricity generation fell to one of growth. The industrial non-energy also bouncing historical lows. sector has been growing back, up 8.0 PJ in 2016. rapidly since 2006, primarily Gas consumption being driven by growth rose 3.8% because in chemical manufacture. The Food Processing industry of increased demand grew by approximately from the Chemical 50% between 2009 and Manufacturing sector 2010 and has been largely Gas consumption rose level since then. In contrast, 3.0 PJ in 2016. The Chemical gas consumption has manufacturing sector was the been declining in the major contributor to the rise, Agriculture, Forestry, up 15.1%(5.1 PJ). Consumption and Fishing sector. Figure D.8: Gas consumption by sector 80 60 Gross petajoules 40 20 0 1990 1996 2002 2008 2014 Industrial Agriculture, Forestry and Fishing Commercial (incl. Transport) Residential
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 28 Gas used to fuel 35 year low. Fuel input for normal. The long term trend electricity plants fell cogeneration also fell by 15.4% for gas consumption in to a 35 year low because (2.3 PJ). The reduction in gas electricity generation and fuel input is a result of greater cogeneration has been one of of wetter weather volume of hydro being decline since 2001. More detail Gas fuel input for electricity available because rainfall about this decline is discussed plant fell 8.4% (3.5 PJ) to a levels were higher than in the electricity section. Figure D.9: Gas used for electricity generation 90 Gross petajoules 60 30 0 1974 1980 1986 1992 1998 2004 2010 2016 86% Gas supply Natural gas production rose 5.2% (9.4 PJ) mostly due to higher production at Mangahewa of gas produced Mangahewa production rose 31% (7.3 PJ) and Pohokura rose comes from 11% (7.2 PJ). In New Zealand all Pohokura, Maui, natural gas is produced and consumed in the North Island, Mangahewa, and 86% of it comes from just and Kupe four fields (Pohokura, Maui, Mangahewa, and Kupe).
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 Figure D.10: New Zealand Natural Gas Transmission Pipeline 29
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 30 Oil, Gas, and LPG reserves, less production to ›› 440 PJ for oil and date. The most certain reserves condensate Reserves figures are presented as Reserves are the estimated ›› 70 PJ for LPG “proved” (1P), followed by total amounts of oil and gas “proved plus probable” (2P), that are able to be recovered then “proved plus probable Ultimate recoverable from a known petroleum plus possible” (3P). reserves (2P) for 2016 were: reservoir. Ultimate recoverable reserves are the total At the end of 2016 ›› 8,577 PJ for natural gas economically recoverable remaining recoverable reserves (2P) were: ›› 3,340 PJ for oil and reserves before any oil or gas is condensate produced. Remaining reserves are ultimate recoverable ›› 2,020 PJ for natural gas. ›› 246 PJ for LPG Table D.1: Oil and Condensate Reserves – as at 1 January 2017 Field Type Ultimate Ultimate Remaining Remaining Recoverable (1P) Recoverable (2P) Reserve (1P) as at Reserve (2P) as at 1 January 2017 1 January 2017 Mm3 mmbbls PJ Mm3 mmbbls PJ Mm3 mmbbls PJ Mm3 mmbbls PJ Pohokura Condensate 9.5 59.5 330.6 9.9 62.1 345.2 2.8 17.6 97.8 3.2 20.2 112.3 Maari Crude Oil 6.5 40.9 243.2 7.1 44.7 265.5 1.2 7.9 46.5 1.8 11.6 68.8 Turangi Condensate 1.3 8.1 40.7 2.2 14.1 70.6 0.8 4.9 24.8 1.7 10.9 54.6 Mangahewa Condensate 1.4 8.6 55.1 1.9 11.6 74.3 0.7 4.2 26.7 1.1 7.2 45.9 Kupe Condensate 3.0 19.1 105.5 3.3 20.9 115.0 1.3 8.2 45.3 1.6 9.9 54.8 Maui Condensate 35.6 223.6 1274.5 35.8 225.4 1284.9 0.6 3.7 21.0 0.9 5.5 31.4 Cheal Crude Oil 0.7 4.2 25.3 1.0 6.4 38.0 0.2 1.3 7.6 0.5 3.4 20.3 Tui Crude Oil 6.3 39.9 217.3 6.6 41.4 225.3 0.1 0.4 2.1 0.3 1.9 10.1 Kowhai Condensate 0.4 2.4 14.6 0.5 3.2 19.7 0.2 1.0 6.4 0.3 1.9 11.5 McKee Crude Oil 7.6 47.5 287.8 7.6 47.9 290.2 0.0 0.1 0.4 0.1 0.5 2.8 Waihapa/ Crude Oil 4.0 24.9 148.1 4.0 25.4 150.9 0.2 1.0 6.0 0.2 1.5 8.8 Ngaere Ngatoro Crude Oil 1.7 10.5 51.3 1.9 11.6 56.9 0.1 0.8 3.8 0.3 1.9 9.4 Kapuni Condensate 10.5 66.1 360.5 10.6 66.7 363.4 0.0 0.0 0.0 0.1 0.5 2.9 Radnor Crude Oil 0.0 0.3 1.3 0.1 0.4 2.1 0.0 0.2 0.9 0.1 0.4 1.7 Copper Moki Crude Oil 0.1 0.6 3.4 0.1 0.7 4.0 0.0 0.2 1.1 0.0 0.3 1.7 Surrey Crude Oil 0.0 0.2 1.1 0.0 0.2 1.2 0.0 0.0 0.2 0.0 0.1 0.3 Tariki Crude Oil 0.3 1.9 10.8 0.3 1.9 10.8 0.0 0.0 0.0 0.0 0.0 0.0 Kauri/ Crude Oil 0.3 2.1 12.2 0.3 2.1 12.3 0.0 0.0 0.3 0.0 0.1 0.4 Manutahi Rimu Crude Oil 0.2 1.5 9.0 0.2 1.5 9.5 0.1 0.3 2.1 0.1 0.4 2.5 Moturoa Crude Oil 0.0 0.0 0.1 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 Total† 89.3 562.0 3192.7 93.5 588.2 3340.2 8.2 51.8 292.9 12.4 78.1 440.4 All Fields# 92.4 581.4 3294.5 93.5 588.2 3340.2 11.4 71.6 405.6 12.4 78.1 440.4 † Arithmetic total. # T he All Fields 1P values were estimated based on probabilistic summation using a Monte Carlo simulation. Arithmetic summation of 1P values will return a number with a much lower probability of occurring (0.1n). 2P values may be totalled safely using arithmetic summation since they are the mid-point of the probability distribution.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 Table D.2: Natural Gas Reserves – as at 1 January 2017 31 Field Ultimate Recoverable Ultimate Recoverable Remaining Remaining (1P) (2P) Reserve (1P) as at Reserve (2P) as at 1 January 2017 1 January 2017 Mm3 Bcf PJ Mm3 Bcf PJ Mm3 Bcf PJ Mm3 Bcf PJ Pohokura 33699.2 1190.1 1395.1 35660.3 1259.3 1476.3 16227.7 573.1 671.8 18188.8 642.3 753.0 Mangahewa 8588.3 303.3 334.5 11870.5 419.2 462.4 4136.9 146.1 161.1 7419.1 262.0 289.0 Turangi 5712.5 201.7 233.6 10130.0 357.7 414.3 3827.6 135.2 156.5 8245.0 291.2 337.2 Kupe 8291.4 292.8 335.8 10612.3 374.8 429.8 4935.8 174.3 199.9 7256.8 256.3 293.9 Maui 104045.9 3674.3 4109.8 105509.8 3726.0 4167.6 2741.4 96.8 108.3 4237.6 149.6 167.4 Kowhai 1600.8 56.5 64.4 2152.8 76.0 86.5 681.3 24.1 27.4 1233.3 43.6 49.6 McKee 5340.6 188.6 218.8 6323.2 223.3 259.0 455.9 16.1 18.7 1438.5 50.8 58.9 Kapuni 38718.1 1367.3 1014.4 39644.1 1400.0 1038.7 0.0 0.0 0.0 925.9 32.7 24.3 Ngatoro 1394.1 49.2 42.5 1756.0 62.0 53.6 181.8 6.4 5.5 543.7 19.2 16.6 Radnor 196.2 6.9 6.9 341.3 12.1 11.9 152.9 5.4 5.4 298.0 10.5 10.4 Cheal 123.5 4.4 6.0 156.4 5.5 7.6 15.9 0.6 0.8 48.8 1.7 2.4 Waihapa/ 858.8 30.3 34.0 875.0 30.9 34.7 37.1 1.3 1.5 53.3 1.9 2.1 Ngaere Copper Moki 34.0 1.2 1.7 35.7 1.3 1.7 3.7 0.1 0.2 5.4 0.2 0.3 Tariki 1453.1 51.3 64.4 1453.1 51.3 64.4 0.0 0.0 0.0 0.0 0.0 0.0 Kauri 789.6 27.9 32.8 813.8 28.7 33.9 53.1 1.9 2.2 77.2 2.7 3.2 Sidewinder 107.6 3.8 4.5 107.6 3.8 4.5 0.0 0.0 0.0 0.0 0.0 0.0 Rimu 140.8 5.0 5.9 143.6 5.1 6.0 14.3 0.5 0.6 17.2 0.6 0.7 Surrey 8.4 0.3 0.3 9.5 0.3 0.4 0.5 0.0 0.0 1.6 0.1 0.1 Total(1) 211620.9 7473.3 7927.0 228163.6 8057.5 8576.9 33689.9 1189.7 1369.2 50265.2 1775.1 2020.4 All Fields(2) 225781.7 7973.4 8264.0 228163.6 8057.5 8576.9 48534.3 1714.0 1776.4 50265.2 1775.1 2020.4 *Includes LPG † Arithmetic total. # The All Fields 1P values were estimated based on probabilistic summation using a Monte Carlo simulation. Arithmetic summation of 1P values will return a number with a much lower probability of occurring (0.1n). 2P values may be totalled safely using arithmetic summation since they are the mid-point of the probability distribution.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 32 Table D.3: LPG Reserves – as at 1 January 2017 Field Ultimate Recoverable Ultimate Recoverable Remaining Remaining (1P) (2P) Reserve (1P) as at Reserve (2P) as at 1 January 2017 1 January 2017 kt PJ kt PJ kt PJ kt PJ Kupe 1394.0 69.6 1783.2 89.0 837.3 41.8 1226.5 61.2 Maui 3267.2 150.5 3316.0 152.8 83.0 3.8 131.8 6.1 McKee/Mangahewa 42.9 2.1 77.2 3.8 23.4 1.1 57.7 2.8 Kauri 20.7 1.0 20.7 1.0 0.0 0.0 0.0 0.0 Rimu 10.4 0.5 10.4 0.5 0.0 0.0 0.0 0.0 Total† 4704.1 222.2 5176.4 245.6 943.7 46.8 1416.0 70.1 All Fields# 4776.7 226.3 5176.4 245.6 1073.2 50.8 1416.0 70.1 † Arithmetic total. #T he All Fields 1P values were estimated based on probabilistic summation using a Monte Carlo simulation. Arithmetic summation of 1P values will return a number with a much lower probability of occurring (0.1n). 2P values may be totalled safely using arithmetic summation since they are the mid-point of the probability distribution.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 Figure D.11: Taranaki oil and gas fields 33
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT ENERGY NEW ZEALAND: 2017 34 At current levels of gas All reserves figures are Energy Agency (IEA), global use, remaining natural estimates generated through investment in the energy gas reserves would be models of the physical sector fell 12 percent in 2016.8 dimensions and chemical New conventional oil projects exhausted in 11 years composition of the various were at a 70 year low, with A total of 196 PJ of gas was fields. These models gradually oil discoveries declining to used across energy change over time as more 2.4 billion barrels in 2016, transformation, non-energy information becomes available compared to an average of use, and consumption in the about the size, shape, and 9 billion barrels per year over 2016 year. If gas used was held composition of the fields. the past 15 years.9 at this amount each year remaining recoverable New Zealand exploration New Zealand oil and gas has experienced a similar reserves of natural gas would be exhausted in 11 years. exploration expenditure downturn in recent years with However, it is important to falls 62% alongside low a single exploration well drilled consider that the gas market crude oil prices in 2016, down from 3 in 2015 has many levers that allow Between 2008 and 2014 US and 22 in 2014 and. Total significant extension of this shale oil production grew expenditure on wells period. There are always dramatically. Combined with amounted to $95m in 2016, additional resources being continued strong production down from $253m (down 62%) identified. Remaining reserves from the OPEC countries, this in 2015, and $1,124m in 2014. of gas are constantly being led to a global oversupply of Figure D.12 shows how the redefined based on knowledge crude oil, which forced prices total number of wells drilled of actual field dimensions and down from around $120/barrel annually 10 has changed since composition. Economic factors to $50/barrel.7 2005 as the Dubai crude oil also come into play as reserves price has changed. Significant of commodities that were once The lower price of crude reductions in the price since uneconomical to extract reduced the appetite for 2014 have coincided with become more appealing as further investment which a large falling off in well demand increases, supply saw significant reductions drilling activity. declines, and price makes in exploration investment. According to the International Exploration permits have extraction feasible. also declined significantly with only one exploration permit granted in 2016, down from Figure D.12 Wells drilled over time and Dubai crude oil price nine in 2015. Deferral of drilling programmes makes economic 50 2011 sense in the current climate of reduced oil prices.11 Oil 2007 2010 prices are cyclical and most companies believe there 40 2009 will be a return to higher 2005 2008 prices as global supplies fall. 2012 2014 Further data are also available Wells drilled 30 2013 2006 on 3P reserves, LPG reserves, contingent resources, oil and gas initially in place, system 20 deliverability, and activity data at: http://www.med.govt.nz/ sectors-industries/energy/ energy-modelling/ 2015 10 publications/energy-in-new- zealand-2015. 2016 0 40 60 80 100 Dubai crude oil price 7 https://www.iea.org/newsroom/news/2017/july/commentary-witnessing-the-ongoing-transformation-of-the-oil-and-gas- industry.html 8 https://www.cnbc.com/2017/07/10/watchdog-warns-of-oil-and-electricity-shortages-as-investment-falls.html 9 https://www.iea.org/newsroom/news/2017/april/global-oil-discoveries-and-new-projects-fell-to-historic-lows-in-2016.html 10 This includes exploration, appraisal and development wells. 11 http://www.radionz.co.nz/news/regional/296521/low-oil-price-hits-exploration-sector
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