Undergrounding Opportunity - Scarborough 27 July 2021
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Undergrounding Opportunity Scarborough 27 July 2021
Background to underground power
Key benefits of underground power Improved public safety Improved reliability and security Improved street appearance Increased property value Reduction in street tree pruning Cater for future demand – peak loads, solar PV’s, EV’s, subdivision etc. Improved opportunity for emerging technologies
Western Power’s Network
• Perth is the only • Many older inner city
suburbs are still
major city in Hills area served by OH
Australia built with
networks. They were
granite
substantially on ground established in the
sandy soils – 1950s to early 1970s
presenting as a • Most of the oldest
perfect candidate suburbs established
for cost effective in the 1900s -1950s
undergrounding were undergrounded
[excludes hard ground by SUPP between
areas with granite rock 2000 and present day
e.g. Perth Hills]
• Most of the outer
• UG area covers 24% suburbs established
of network and after 1980s were
71% of all SWIN undergrounded by
customers the Urban
Residential
Development (URD)
program
Funding Models
Undergrounding Programs - Funding
Network Renewal Underground Program Pilot
Per Western Power’s Business Plan and
Regulatory submission for the AA4
period, the business strives to maintain
network performance at minimum cost
• WP has identified overhead assets that
with a view to:
are reaching the end of their life and need
• managing public safety risk
to be replaced
• maintaining reliability
• Current undergrounding programs
• managing compliance (SUPP/RUP) underway result in improving
• meeting customer needs cost competitiveness of undergrounding
• It is more efficient for Western Power to
replace overhead capex assets with
underground assets in the four pilot areas
• Given the condition of the network and
its ageing assets, renewal & maintenance
work will be undertaken in the area either
way (i.e. overhead or underground)
Funding Model
• Local Government Authorities will be requested to fund the consumer mains connection (1)
• Western Power will fund the Capital Expenditure portion of the undergrounding works that
includes all of Western Power’s infrastructure (2,3,4)
Current Pilot Opportunities
Scarborough
Eden Hill
St James
Hilton
The proposed project in Scarborough
Proposed Project Boundary – Scarborough
• Project boundaries are
determined by the age & risk
profile of the overhead assets
in the area
• Expanding the boundaries
beyond the area identified
means the project is not
viable for WPThe way forward
1. Western Power has finalised its Business Case (August 2020)
2. Western Power commenced the detailed design (April 2020)
3. Primary Equipment Site consultation (Q3 2020)
4. Western Power completed detailed design (December 2020)
5. Western Power completed construction tenders (February 2021)
6. Underground Power Flyers August 2021
7. Construction commences September 2021
• Construction duration Approx. 18 months
8. Anticipated completion date March 2023More information Please follow link below for further information regarding current and planned underground Power Projects including FAQ’s: https://westernpower.com.au/community/work-in-your-area/underground- power/ Please note the information on the website link above is updated as we progress towards construction. Schedules are updated accordingly throughout the project lifecycle. Construction and Project delivery enquiries: • Western Power: undergroundpower@westernpower.com.au Ratepayer(s) Project contribution enquiries : • City of Stirling: (08) 9205 8555
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