Energy Efficient Desalination 15 - 18 JANUARY 2018 | ADNEC

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Energy Efficient Desalination 15 - 18 JANUARY 2018 | ADNEC
15 - 18 JANUARY 2018 | ADNEC

Energy
Efficient
Desalination
                       Meeting the GCC’s water
                    needs in an environmentally
                                sustainable way
 internationalwatersummit.com
Energy Efficient Desalination 15 - 18 JANUARY 2018 | ADNEC
Table of Contents
Introduction

Introduction                                                 2
Technologies                                                 3
Research and Development                                     5
Country Plans                                                6
    Bahrain                                                  6
    Kuwait                                                   7
    Oman                                                     7
    Saudi Arabia                                             9
    UAE                                                      12
      Abu Dhabi                                              12
      Dubai                                                  12
      Sharjah                                                14
      Northern Emirates                                      14
About the report                                             15

 INTERNATIONAL WATER SUMMIT: ENERGY EFFICIENT DESALINATION
Introduction
Globally, it is estimated that 90 million m3 of water is desalinated a day, with potable water produced by around 18,500
desalination plants. Saudi Arabia, the United States, the UAE and Kuwait have the globe's highest desalination capacities.
The three GCC countries alone are responsible for more than one-third of the global desalination capacity. Overall, about
58% of the world’s desalination capacity is in the Middle East and North Africa, according to the International Energy
Agency (IEA).

The GCC region is water-stressed, has high levels of urbanisation and its population continues to grow. As populations rise,
so do water demands, both in terms of individual use and by industry and agriculture to meet new levels of demand for
produce and goods. The increase in desalination requirements is also pushing up energy consumption to produce fresh
water, with the knock-on effect of more greenhouse gas emissions and increasing levels of chemicals and brine ejected
back into seawater following desalination processes.

To date the region has been reliant on energy-intensive thermal desalination processes that use fossil fuels as their
feedstock. According to the IEA’s World Energy Outlook report in 2016, half of all global energy consumption for
desalination is in the UAE, at more than 13 million tonnes of oil equivalent. GCC states take the top six spots for individual
country’s energy demand for desalination.

Water desalination in the Middle East has traditionally been coupled with power stations, to supply electricity and
desalinated water. With the drive towards reducing energy consumption, along with plans to increase the amount of power
from standalone renewable and clean energy, there is an increasing need to develop sustainable approaches to
desalination.

      GLOBAL CARBON DIOXIDE EMISSIONS DUE TO DESALINATION

                250

                200

                150

                100

                 50

                  0
                                         2016                            2040

Shifting towards alternative energy and sustainable technologies to desalinate water will also contribute to country targets
of reducing carbon dioxide emissions. It is estimated that today, 76 million tonnes of CO2 is emitted annually due to
desalination processes. Abu Dhabi government entity Masdar has forecast that under a business-as-usual scenario, by
2040 desalination will be responsible for 218 million tonnes of CO2 a year due to the need to build and operate more
desalination plants to meet water demands.

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Introduction
Groups such as the Global Clean Water Desalination Alliance, whose members include Masdar, are investigating and
promoting clean energy sources for desalination. The organisation has a range of stepped targets through to 2036 designed
to increase the amount of clean energy used in future desalination plants, and has committed to spend $100m a year from
2017 on research and development. Those funds will come from members in the form of money or infrastructure and
equipment.

        ANNUAL ENERGY TO COME FROM CLEAN SOURCES FOR DESALINATION PLANTS

            80
            70
            60
            50
            40
            30
            20
            10
             0
                     Operational from             Operational from    Operational from          Operational from
                      2020 - 2025                  2026 - 2030         2031 - 2035                   2036

       Source: Global Clean Water Desalination Alliance

    Technologies
About 70% of all desalination in the GCC is based on thermal processes, which are well-suited to the high salinity of the
Arabian Gulf, its temperature and levels of organic matter. Thermal desalination – both multi-stage flash (MSF) and
multiple-effect distillation (MED) – are more energy intensive than reverse osmosis (RO), a membrane technology.

Thermal processes require both electrical energy and heat, typically using gas, which is what makes them more energy
intensive. In terms of electrical energy alone, MSF and RO both use about the same amount of electrical energy per cubic
metre of water desalinated. But RO does not require additional energy for heat. MED requires about a quarter of the electrical
energy compared to other processes, but also requires additional energy in the form of heat.

Overall, MSF is the more energy-hungry technology, requiring up to 80kWh of thermal energy for every cubic metre of water
to be desalinated. This is followed by MED, using about 70kWh/m3. When put in terms of equivalent electrical figure energy,
RO is by far the most energy efficient desalination technology in common use today, with a total equivalent electricity that is
about one quarter that of MED and one-fifth of that used by MSF.

3    INTERNATIONAL WATER SUMMIT: ENERGY EFFICIENT DESALINATION
Technologies
        ENERGY REQUIRED FOR DESALINATION, BY TECHNOLOGY

                                        Electrical Energy             Thermal Energy          Total Equivalent Electrical
                                            (kWh/m3)                     (kWh/m3)                 Energy (kWh/m3)

        Brackish water RO                     1 - 1.5                         0                          1 - 1.5

          Seawater RO                         4 - 4.5                         0                          4 - 4.5

               MED                              1                         60 - 70                       16 - 18.5

               MSF                              5                         70 - 80                       22.5 - 25

       Source: Environment Agency Abu Dhabi

The use of desalination – in particular, thermal - comes with environmental impacts. The energy to generate the heat comes
from fossil fuels (in some cases heavy fuel oil), adding to a country's carbon dioxide emissions. In addition, and common to
other desalination methods, brine and chemicals left over from the process are discharged into the sea. The more efficient a
plant is at extracting potable water from seawater, the lower the level of chemicals (by ratio) are subsequently ejected into the
sea.

Desalination processes have become less energy-intensive as the technologies have improved. It is generally considered that
technologies such as reverse osmosis are reaching the limits of efficiency improvements for reasonable cost, and that future
gains will start to become prohibitively expensive. It means alternative methods need to be coupled with current desalination
technologies, or new technologies need to be used in the desalination process.

This includes methods of pre-treatment, the impact of decentralisation, and newer technologies such as thin-film
nanocomposite membranes (a form of RO), captive deionisation (most suitable for brackish water), forward osmosis, and the
use of renewable energy, such as solar, wind and geothermal.

In late August 2017, Saudi Arabia announced that it was to work with China to research the use of gas-cooled nuclear
reactors for desalination. A controversial technological approach that has been used elsewhere, nuclear does allow for
large-scale desalination using a clean energy source. However, the kingdom does not have any nuclear plants. It has
early-stage development plans for two reactors that would generate 2.8GW in total capacity, but any use of nuclear for
desalination are some years away.

Membrane technologies are more energy-efficient than their thermal counterparts, as well as robust and reliable. Amongst
the newer developments, forward osmosis is considered to be one of the more exciting opportunities, but is still in early stages
of development. It has been tested as part of the desalination pilots that have been run by Masdar in Ghantoot. The technology
was found to reduce the required energy consumption to 3.5-4 US cents per kilowatt hours per cubic metre (kWh/m3) of
water. However, the technology needs to show that it can make the leap from small-scale systems to commercial, large-scale
operations.

An area of focus that is attracting more attention for research and development is that of pre-treatment methods, as these
offer the opportunity for greater gains in efficiency. This includes the use of managed beach wells, rather than the traditional
seawater intakes. These help reduce the energy required to desalinate water and the amount of chemicals used, by providing
natural filtration before the water reaches the desalination plant.

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Technologies
Renewable energy – in particular solar - is also attracting attention. Several small-scale systems have been successfully
trialled. The downside today with this approach is that unless coupled with some form of battery storage, a facility can only
operate during daylight hours. As battery power becomes cheaper, interest in solar as an energy source for desalination will
rise.

    Research and Development
Among the most high-profile and advanced investigations into more efficient desalination were a set of pilot projects run by
Masdar in the Ghantoot area of Abu Dhabi.

The government organisation led five pilot projects that looked at energy-efficient seawater desalination. The first four pilots
were awarded in 2015, with the fifth (to Mascara NT) awarded in late 2016. Each pilot was awarded following a competitive
tender to a different company, which then built a small-scale system to test more efficient desalination methods. Each test
ran continuously for at least 15 months.

The pilot studies set out to reduce the amount of electrical energy required for seawater desalination to below 3.6 kWh/m3
using membrane technology, and therefore also reduce the environmental impact of the process. The pilots also set out to
bring down the price of energy-efficient systems, making them cost-competitive with fossil-fuel desalination systems.

The Sidem Veolia plant began operations in August 2015. It used a two-pass RO system, coupled with dissolved air flotation
and a gravity dual media filter in a single unit for pre-treatment. Early reported results saw energy consumption fall by 7%
compared to the initial target and the pilot was considered scalable.

Suez also used a two-pass RO system, with dissolved air flotation and ultrafiltration for the pre-treatment. An integrated brine
management unit used liquid to liquid ion exchange to increase the recovery ratio. As with the Veolia pilot, the dissolved air
flotation improved pre-treatment performance. The pilot was considered scalable, but it was said that more research was
needed into the liquid ion exchange for it to suit larger operations.

          DESALINATION PILOT PROJECTS

           Organisation                   Technology                 Capacity (m3/day)              Pilot completion

                                      Reverse Osmosis and
              Abengoa                                                       1,000                        Q1 2016
                                      Membrane Distillation

           Sidem / Veolia               Reverse Osmosis                       300                        Q2 2017

                                      Reverse Osmosis and
                Suez                                                          100                         Q1 2017
                                         Ion Exchange

            Trevi Systems               Forward Osmosis                       50                          Q1 2016

                                       Reverse Osmosis
             Mascara NT                                                       30                          Q1 2018
                                    powered by off-grid solar

       Source: Masdar

5     INTERNATIONAL WATER SUMMIT: ENERGY EFFICIENT DESALINATION
Research and
                                                   Market
                                                     Development
                                                          barriers
Abengoa's pilot used an integrated system where the brine left over from the first RO pass was treated by a membrane
distillation system. It was found that this combination could increase the recovery ratio and reduce energy consumption.

The Trevi Systems pilot used forward osmosis membrane technology, a technology still in its early stages of development. Over
the life of the pilot, performance improved and more advances with the technology are expected.

The Mascara NT pilot is due to be completed by the end of 2017. It is a solar photovoltaic powered reverse osmosis system
with pre-treatment coming from a beach well. The system is fully automated and not coupled with batteries, so operates only
during hours of sunlight.

It has achieved one of the lowest energy consumption rates globally for water desalination, using 2.5 kWh/m3 of seawater,
excluding the energy required for the high-pressure pumps and pre-treatment. The system is adapted to work for small
communities, such as those in remote locations.

The Arabian Gulf is a challenging seawater to desalinate due to its high salinity and organic content and it was found during
tests that some technologies coped better than others with these conditions during the pre-treatment stage. It was found that
the use of dissolved air floatation coped well with organic matter during pre-treatment.

In Saudi Arabia, King Abdullah University of Science and Technology (Kaust) has focused its research on improving the energy
efficiency of the MED thermal desalination technology. It has concentrated efforts on improving the number of passes possible
for water vapour to increase final water production and on reducing the heat required during this process. To do this it has
looked at how to overcome limitations in the thermodynamics of traditional thermal facilities.

The institute says it has increased the number of times water can be recirculated in the evaporation stages from about eight
times to about 20, and this produces twice as much potable water as in conventional processes. It has also decreased the
required temperature for the process. The institute has achieved this by coupling nano-filtration pre-treatment techniques and
solar-powered adsorption cycles with a MED plant.

By producing more water from each desalination cycle, it also effectively reduces the amount chemicals that are ejected into
the sea with the waste brine. The system is being tested on a larger scale with a 3,000 m3/day desalination plant in Yanbu,
which uses waste heat for the production.

Kaust says its process reduces the production cost of water to about $0.5 per cubic metre.

   Country Plans
          BAHRAIN

The smallest desalination market in the GCC, approximately 54% of its water comes from groundwater. The country has water
demand of about 700,000 m3/day, excluding the water produced by the 41,000 m3/day MED desalination plant at the
Aluminium Bahrain facility.

Almost two-thirds of Bahrain's desalination capacity is based on thermal technologies, with a fairly even split between MED and
MSF. However, its most recently built plant, Al-Dur, is based on RO.

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Country Plans
Bahrain is planning to build a second Al-Dur power          BAHRAIN'S WATER DESALINATION TECHNOLOGIES
and water plant, which will increase desalination
capacity by 227,304 m3/day. The Al-Dur 2
independent water and power production (IWPP)
plant is at the tender stage, with the power plant due
for operation from June 2020 and the desalination a                          37%                     63%
year later. KPMG is the financial advisor for the                               RO                     Thermal
project.

                              PLANNED DESALINATION FACILITIES IN BAHRAIN

           Al-Dur                                                   Other facilities include Ras Abu Jarjur, which was the Middle
                                                                    East and North Africa's largest capacity reverse osmosis plant
           2 IWPP                  Capacity: 227,304 m3 / day
                                   Completion: 2021
                                                                    when it was commissioned in 1984. It also has Al Hidd IWPP,
                                                                    which includes the region's largest capacity MED facility, which
                                                                    produces enough water for about 750,000 people.
             KUWAIT
Kuwait expects its water demand to increase by about 6% a year to 2030 due mainly to the new cities that are being developed.
The Ministry of Electricity and Water has estimated that an additional 2,045,741 m3/day or 450 MIGD will be needed in the
country by 2030, with domestic use accounting for about 200 MIGD of that figure.

The country's Public Private Partnership projects are procured through Kuwait Authority for Partnership Projects (KAPP). It is
understood that some of its planned water projects are delayed. Kuwait is also planning to tender an emergency RO mobile
units programme. This will comprise 30 mobile units, each with a 100,000 gallon capacity.

            PLANNED DESALINATION PLANTS
              Facility              Capacity (MIGD)   Expected tender release
                                                                                Kuwait plans to build eight facilities capable of
          Doha RO Phase 1                 60             Awarded June 2016      desalinating seawater by 2025 to meet its water
     Al Zour IWPP North Phase 2           107             Under evaluation      needs. The most recent contract award was in June
                                                                                2016, going to Doosan Heavy Industries for phase
       Al-Kheran IWPP Phase 1             125                   2018            one of the Doha reverse osmosis desalination plant.
 Al Zour North IWPP Phases 3 & 4          75                    2019
        Al Nwaiseeb Phase 1               75                    2020
                                                                                Once complete, the facility will produce 272,765
                                                                                m3/day, enough water for 900,000 people. There are
         New Shuaiba South                50                    2021/2          plans for at least one more desalination plant to use
           New Doha East                  100                   2022/3          RO technology.
         Doha RO Phase 2                  60                    2024/5

     Source: MEW

            OMAN
Oman plans to develop a number of seawater desalination facilities to meet growing water demand in the Sultanate. The
country is split into five water zones, and the total average annual water demand across Oman is expected to grow by about
6% a year to 2023. Some parts of Oman face the prospect of their desalination capacity not meeting consumption needs,
adding to the urgency of progressing with its planned projects.

 7      INTERNATIONAL WATER SUMMIT: ENERGY EFFICIENT DESALINATION
Country Plans
Oman is heavily reliant on small-scale reverse osmosis plants to produce potable water, in combination with its larger IWPP
and independent water production (IWP) facilities.

The country has installed less thermal desalination than its GCC neighbours, with just three large-scale MSF plants
operational (excluding plants for industrial facilities). Of those plants, MSF technology is being phased out in two of them.
Barka 1 IWPP, which uses a combination of MSF and RO, will cease using its MSF units from 2018.

To meet demand, Oman has approximately 1.9 million m3/day of new capacity under construction, planned, or under study,
with the emphasis on RO technology under its Seven-Year Plan, issued by the Oman Power and Water Procurement
Company in May 2017. There is also about 100,000 m3/day of mobile desalination capacity planned.

According to press reports, an award for its 90,000 m3/day Sharqiyah IWP is expected to be made in October 2017, giving
the winning developer two years to complete the facility. An award for Salalah 3 IWP, which will have a capacity of 100,000
m3/day, is also expected before the end of 2017.

Additionally, the Public Authority for Electricity and Water (PAEW), which is responsible for smaller desalination plants in
Oman, has issued three tenders since August 2017. Each is for a facility of up to 10,000 m3/day.

In terms of water security, Oman will develop enough desalination capacity to meet peak demand, with an additional 14.3%
margin on top to account for any unexpected, temporary supply failure.

                                     PLANNED DESALINATION FACILITIES

         Facility            Capacity (m3/day)    Technology     Commissioned                              Overview
 Aseelah Temporary Supply         10,000               RO             2017            WPA until 2021, with a two-year extension option
      Qurayyat IWP               200,000               RO             2017                 Expected to begin operations in Q4 2017
        As Suwayq                227,304                -             2018
       Barka 4 IWP               281,000               RO             2018                 Expected to begin operations in Q2 2018
       Sohar 3 IWP               250,035               RO             2018                 Expected to begin operations in Q3 2018
  Duqm RAECO expansion             4,000               RO             2018                      Expected to be added in 2018
      Sharqiyah IWP               90,922               RO             2019               Award expected to be made in October 2017
                                                                                            The project is on-hold as an alternative
        Duqm IWP                  60,000               RO        2019; On hold
                                                                                              supply scheme is being considered
       Aseelah IWP                80,000                -             2020                          To be awarded in 2017

      Salalah 3 IWP              100,000                -             2020                Under tender; award expected in Q4 2017

                                                                                      It will be Musandam's largest capacity desalination
       Khasab IWP                 15,911               RO             2021
                                                                                         facility. Six groups listed as pre-qualified to bid
                                                                                                 The request for proposals is
      Ghubrah 3 IWP              300,000                -             2022
                                                                                              expected to be issued in Q4 2017
                                                                                                 The request for proposals is
    North Batinah IWP            200,000                -             2022
                                                                                              expected to be issued in Q4 2017
      Salalah 4 IWP              100,000                -             2022                                Under study

 RO = Reverse Osmosis, WPA = Water Purchase Agreement; Sources: Oman Power and Water Purchase Company, Rural Areas Electricity Company

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Country Plans
        SAUDI ARABIA

                                                     WATER CONSUMPTION
                                  3500

                                  3000

                                  2500

                                  2000

                                  1500
                                              2012            2013        2014   2015   2016
     Source: General Authority for Statistics, Saudi Arabia

Saudi Arabia has the world's biggest desalination capacity, accounting for about one-fifth of the global desalination capacity.
Water production from its desalination plants are split between its Red Sea and Arabian Gulf coasts.

Total water consumption has been rising steadily across the kingdom. Between 2012 and 2016, consumption increased by
58% across the country, to 3,129 million m3/day.

                        SAUDI ARABIA WATER PRODUCTION TECHNOLOGIES

               5%                                             68%                        27%
               Multi-effect                                     Multi-stage                    Reverse
               Distillation                                       Flash                        Osmosis

    Source: Electricity and Cogeneration Regulatory Authority

Domestic water consumption is forecast to continue to rise by about 53% by 2030 on 2016 figures, highlighting the urgency
for Saudi Arabia to expand its desalination capacity.

Approximately 61% of its water is desalinated, with the rest supplied by ground water. In terms of water demand, about 84%
is used by agriculture, 12% by municipalities and 4% by industry.

MSF is by far the biggest desalination technology in use in Saudi Arabia, followed by RO. It is likely that future desalination
plants will adopt more energy-efficient technology, as the kingdom looks to reduce the amount of fossil fuel used in its water
production. This will result in more RO plants being built. It is understood that the government is pushing for future
developments to be RO facilities rather than thermal desalination.

9   INTERNATIONAL WATER SUMMIT: ENERGY EFFICIENT DESALINATION
Country Plans
                     SELECTED PLANNED DESALINATION PLANTS

    Facility           Owner         Capacity (m3/day)   Technology                          Overview

                                                           MED or MSF
Al Jubail, Phase 3      SWCC             1,500,000                                   Main contract to be tendered
                                                          and RO (30%)
                                                                                 The main contract is to be tendered;
Al Shaqaiq Phase 3      SWCC              380,000               -
                                                                                    expected completion is in 2022

                                                                                 Awarded to Hyflux in February 2017.
 Al Wajh Phase 4        SWCC              16,000         Reverse Osmosis
                                                                                     Completion is slated in 2019

                                                                                 Awarded to Hyflux in February 2017.
  Duba Phase 4          SWCC              16,000         Reverse Osmosis
                                                                                     Expected completion in 2020

                                                                                 Awarded to Hyflux in February 2017.
  Haql Phase 3          SWCC              16,000         Reverse Osmosis
                                                                                     Expected completion in 2021

                                                                                 Main contract awarded to Doosan Heavy
 Jeddah Phase 4         SWCC              400,000        Reverse Osmosis
                                                                                  Industries and Construction in April 20

  Jubail Phase 3        SWCC             1,500,000              -                    Main contract to be tendered

                                                                              EoI released in August 2017 and expected
                                                                                completion is 2021. It will be built as a
                                                                             design-build-operate facility with the winning
                       Water and                                              organisation also responsible for O&M and
 Rabigh Phase 3        Electricity        600,000        Reverse Osmosis    financing. It will be developed under a 25-year
                       Company                                             water purchase agreement. Desalination capacity
                                                                            may be later expanded to 1.2 million m3/day.
                                                                                 The technical adviser is Fichtner and
                                                                             the financial adviser is Banque Saudi Fransi

                                                                                     Expected completion in 2020.
   Umlujj Phase 3        SWCC              7,740              MED             On completion, total capacity for the facility
                                                                               across all phases will be 18,000 m3/day

                                                                             Sepco III Electric Power Construction (China)
                                                                            signed a contract with SWCC in May 2017 to
                                                                            complete construction of the plant, according
                                                                               to Reuters. First water is expected to be
   Yanbu Phase 3         SWCC             550,000             MSF
                                                                               produced in 2018, with the desalination
                                                                             units completed in 2019. Initially, Samsung
                                                                             Engineering was awarded the main contract,
                                                                                        but this was cancelled.

                                                                                     Expected completion in 2022.
   Yanbu Phase 4         SWCC             450,000               -
                                                                                  The main contract is to be tendered

 Sources: SWCC; WEC; Reuters

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Country Plans
Several RO plants have been recently awarded or announced. The most recent large-scale plan was announced by Saudi
Arabia's Water and Electricity Company (WEC), which invited Expressions of Interest (EoI) in August 2017 for Rabigh 3, a
600,000 m3/day RO plant near Jeddah. It is slated to begin operations in 2021.

In April, the Saline Water Conversion Company (SWCC) awarded the contract to build what will be (briefly) Saudi Arabia's
biggest RO plant on completion. Jeddah 4, on the Red Sea coast, was awarded to South Korea's Doosan Heavy Industries
and once operational it will produce 400,000 m3/day.

In February 2017, Hyflux said it was to build three small-scale RO plants in the kingdom, also along the Red Sea coast, each
with a capacity of 16,000 m3/day.

                           DESALINATION PRODUCTION IN SAUDI ARABIA, BY COMPANY

             60%                                  14%                               13%                         13%
                                                 Shuaibah Water                     Jubail Water
                 SWCC                                                                                               Others
                                             and Electricity Company             and Power Company

     Source: Electricity and Cogeneration Regulatory Authority
SWCC is the kingdom's biggest water production company (and second biggest power producer), with 29 desalination
plants, plus more planned. The bulk of its desalination plants use MSF technology.

It has seen water production increase most years since the 1980s, apart from a few years of decline about a decade ago.
According to SWCC figures, the organisation has an installed capacity of about 3.89 million m3/day. SWCC is now planning
to privatise many of its facilities.
                                                           SWCC WATER PRODUCTION
            1,200

            1,000

             800

             600

             400

             200

                0
                        80
                              82
                                     84
                                           86
                                                  88
                                                         90
                                                                 92
                                                                       94
                                                                            96
                                                                                 98
                                                                                      00
                                                                                           02
                                                                                                 04
                                                                                                      06
                                                                                                           08
                                                                                                                10
                                                                                                                     12
                                                                                                                             14
                     19
                            19
                                  19
                                         19
                                                19
                                                      19
                                                            19
                                                                   19
                                                                        19
                                                                             19
                                                                                   20
                                                                                         20
                                                                                               20
                                                                                                     20
                                                                                                          20
                                                                                                               20
                                                                                                                    20
                                                                                                                         20

                Sources: SWCC

11       INTERNATIONAL WATER SUMMIT: ENERGY EFFICIENT DESALINATION
Country Plans
          UAE
Of the total amount of energy used for desalination globally, the UAE was responsible for half. This is because much of the
UAE’s desalination capacity is based on thermal technologies, and due to its reliance on the highly saline Arabian Gulf as its
water source. More saline water requires more energy to separate the water and the salt.

          ABU DHABI
Abu Dhabi is reliant on thermal desalination for its       ABU DHABI WATER PRODUCTION TECHNOLOGIES
production of potable water. In 2016, the technology
accounted for about 89% of the drinking gross water
production in Abu Dhabi. The total installed                      72%                   17%                 11%
production capacity was about 4,127,850 m3/day                       MSF                   MED                  RO
(908 MIGD).
About 40% of the water used in Abu Dhabi has been desalinated, and almost all drinking water is desalinated.

Gross water production in 2016 was 270,241 MIG (1.23 million m3) in Abu Dhabi across its desalination plants. About 1%
of that was used internally by the production plants and 258,586 MIG (1.18 million m3) went into the network.

According to government body Regulation & Supervision Bureau (RSB), in 2015 peak water production was 852 MIGD
(3,873,269 m3/day) and this is forecast to grow by 2.5% to 950 MIGD (4,318,786 m3/day) by 2020. Of the water
desalinated, the majority is used in agriculture, followed by industry and domestic use. The Environment Agency - Abu Dhabi
(EAD) estimates that water demand by 2030 will have grown to 6,900 million m3 a year, with about 4,500 million m3 being
used for agricultural purposes.

               FORECAST PEAK WATER PRODUCTION IN ABU DHABI (MILLION m3/DAY)

                    8
                    7
                    6
                    5
                    4
                    3
                    2
                    1
                    0
                                 2015                           2020                          2030
        Source: Environmental Agency Abu Dhabi

          DUBAI
Demand for water has increased steadily this decade. While Dubai’s installed desalination capacity has remained unchanged
at around 2.14 million m3/day (470 MIGD) since 2012, peak desalination water demand has risen by a little under 22% to
347 MIGD in 2016 over the same period.

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Country Plans
             INSTALLED DESALINATION CAPACITY AND PEAK DESALINATION DEMAND
      750

      650
                                                                                                           Installed capacity (MIGD)

      550
                                                                                                           Peak Desalination
      450                                                                                                  Demand (MIGD)

      350                                                                                        Source: DEWA

      250
             2010     2011    2012     2013     2014     2015     2016      2020     2030

     WATER PRODUCTION (MIGD), 2017
                                                          Almost 95% of Dubai's desalination comes from plants using
                                                          multi-stage flash technology, powered using waste heat, with the
                                                          rest using reverse osmosis. However, the emirate is planning to
         445                    25                        install more RO capacity to reduce its energy requirements for
                                                          desalination, with schemes including a new 181,844 m3/day
            MSF                   RO                      capacity facility in Jebel Ali. The advisory services contract was
                                                          awarded in August 2016, with the main award due, following the
     Source: DEWA                                         close of the tender in January 2017.

     WATER PRODUCTION (MIGD), 2030                                   PLANNED DESALINATION CAPACITY

                                                                Facility     Capacity (m3/day)    Technology       Commissioning

                                                             New Jebel
                                                                                181,844              RO                 2020
            445                 305                           Ali plant

            MSF                   RO                         Source: DEWA

      Source: DEWA

In February 2017, speaking at the World Government Summit, Saeed Mohammed Al Tayer, CEO and MD of Dubai Electricity
and Water Authority (DEWA), said the emirate would increase its RO water production by 36%.

By 2030, DEWA wants almost 41% of its desalination capacity to be based on RO, a significant increase on today’s 5.3%.
The emirate aims to have its desalination capacity powered by clean energy sources, with approximately 305 MIGD (1.39
million m3/day) also based on reverse osmosis.

The move will help reduce greenhouse gas emissions and save an estimated $13bn. Much of the solar energy will come
from the Sheikh Mohammed bin Rashid Al Maktoum solar park, which is planned to have reached a capacity of 5GW by
2030. The utility is also planning to retrofit existing plants with photovoltaic solar panels.

The utility has developed a solar-powered RO desalination facility at the Sheikh Mohammed bin Rashid Al Maktoum solar
park, capable of producing 50 m3/day of drinking water, as part of its research into more energy-efficient desalination. It
opened in mid-2016.
13   INTERNATIONAL WATER SUMMIT: ENERGY EFFICIENT DESALINATION
Country Plans
          SHARJAH
Sharjah has a water desalination capacity of around 500,000 m3/day. Managed by Sharjah Electricity and Water Authority
(SEWA), the emirate’s main desalination plant is Layyah, which has been expanded over the years, and its newest is
Hamriyah. It also takes water from Abu Dhabi Water and Electricity Authority to help meet its needs.

Water production began in its Hamriyah reverse osmosis                PLANNED DESALINATION CAPACITY, SHARJAH
facility in 2015, its most recent plant to go live. Initial water
production is just under 91,000 m3/day, but SEWA plans to
eventually increase this.                                                    New                   Capacity: 10,000 m3 / day
In July 2017, SEWA awarded a contract to build a 10,000                      Kalba                 Technology: Reverse Osmosis
m3/day plant in Kalba to Alpha Utilities. The scheme is being                                      Developer: Alpha Utilities
developed as a PPP under a Build-Operate-Transfer contract.
                                                                        Source: Alpha Utilities

         NORTHERN EMIRATES
Water desalination in the northern emirates of Ajman, Fujairah, Ras al-Khaimah, and Umm al-Quwain is managed by the
Federal Electricity and Water Authority (FEWA). The authority has a water production capacity of about 296,776 m3/day, split
across RO and MED facilities. However, according to the latest available figures from the authority, actual water production is
far lower, at 119,468 m3/day in 2014.

             WATER PRODUCTION BY TECHNOLOGY

                                                                        In July 2017, the authority said to meet rising water
          14%                                                           demand, it would concentrate on reverse osmosis for
                                                                        future desalination plants, and look to increasingly
                                                                        funded using the IWP model.

                                                                        FEWA is building and expanding several RO desalination
                                                                        plants in the region, adding about 485,000 m3/day of
                                                                        new water production capacity. The projects have been
                                                                        in the pipeline for several years. Thirteen organisations
                                                               86%      have been shortlisted to bid to develop a facility in Umm
                                                                        al-Quwain, while the Ghalilah plant will be expanded,
                    Reverse Osmosis      Multi-effect Distillation      adding 136,000 m3/day to its capacity.
        Source: FEWA

                          PLANNED DESALINATION CAPACITY NORTHERN EMIRATES

              Facility                        Location               Total capacity ( m3/day)               Technology

             Al Zawra                           Ajman                         136,383                           RO

        Ghalilah expansion                Ras al-Khaimah                      204,574                           RO

       Umm al-Quwain IWP                  Umm al-Quwain                       204,574                           RO

    Source: Wam, Desalination Biz

                                                                                              internationalwatersummit.com    3
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