Follow the construction journey of Strike's 85MW Peaking Gas Power Plant - milestones, images and progress updates in one place.
Nameplate Capacity
85 MW
Asset Type
Gas Fired Peaking Power Plant (fast-start reciprocating engines)
Grid
South West Interconnected System (SWIS)
Location
Arrowsmith East, WA
Project: South Erregulla Peaking Power Plant (SEPP) • Last updated: 19 November 2025
Overall construction progress
Timeframes and activities shown are indicative and subject to approvals, supply chains and construction conditions.
Milestones
Site preparation & civil works
Q1–Q3 2025
Bulk earthworks, fencing, laydown, internal access, and foundations complete.
South Erregulla-1 Well Workover
Q3 2025
Workover to ensure production readiness; clean up flow and production simulation has been completed in readiness for gas supply to the power plant.
Structural, Mechanical, Piping, Electrical & Instrumentation
Q3–Q4 2025
Structural, Mechanical, Piping, Electrical and Instrumentation (SMPEI) GWES completed installation of all radiators and positioned all generators and alternators inside the engine hall.
Engine delivery & placement
Q3-Q4 2025
20x Jenbacher 4.5 MW reciprocating engines shipped from Austria to Fremantle on site to be installed in engine hall.
Switchyard & Transmission Construction
Q4 2025-Q2 2026
Bulk earthworks contractor (Lenane’s) mobilised to site and commenced work on CRY and KGN Switchyards.
Commissioning & performance testing
Q3 2026
System energisation, safety verifications and performance testing prior to commercial readiness.