Daily WA Electrical & Tech News Update – May 15, 2026
May 20, 2026
Daily WA Electrical & Tech News Update – May 19, 2026
May 20, 2026
Top WA Electrical and Tech News for May 20, 2026
Western Australia is powering ahead with its energy transition, as large-scale batteries set new performance records, additional storage projects advance in Collie, virtual power plant technology progresses, and the SWIS continues to achieve impressive renewable penetration levels. Here are the most important stories from the past 48 hours focusing on power, grid, renewables, batteries and utilities.
Synergy Collie Battery Delivers Record Peak Demand Support
Western Australia’s battery storage systems have reached a new milestone, supplying a record share of evening peak electricity demand. This performance highlights how rapidly deployed BESS assets are becoming essential tools for grid reliability as the state shifts away from coal generation.
- Synergy’s Collie Battery Energy Storage System (CBESS), Australia’s largest operational BESS at 500MW/2,400MWh, has been a standout performer.
- Batteries supplied a record 37.2% of peak demand in recent operations, with the Collie facility playing a leading role alongside other installations.
Third Major Solar-Plus-Storage Project Proposed for Collie
Collie’s transformation into a renewable energy hub continues, with Palmer Renewable Energy submitting plans for a new 200MW solar-plus-storage development. This would become the third utility-scale battery project in the area, building on existing Synergy and Neoen facilities.
- The project has already received development approval from Western Australia’s Regional Development Assessment Panel in 2025.
- An EPBC Act referral is now underway, focusing on protection of threatened black cockatoo species in the region.
Project Jupiter Gains Momentum on Virtual Power Plants
Project Jupiter is advancing efforts to integrate rooftop solar and household batteries into WA’s main energy system using virtual power plant technology. The initiative aims to create a more resilient grid while delivering better value to households and small businesses.
- The project is a collaboration between Western Power, Synergy, the Australian Energy Market Operator (AEMO) and Energy Policy WA.
- It is supported by a $20.8 million grant from the Federal Government’s ARENA program to accelerate distributed energy resource participation.
SWIS Renewables Penetration Hits Impressive Highs
Western Australia’s South West Interconnected System (SWIS), the world’s largest isolated grid, continues to set benchmarks for renewable energy contribution. Recent periods have seen wind and solar combinations reaching record instantaneous levels, supported by growing battery capacity.
- Records approaching or exceeding 85% renewables penetration from wind and solar have been achieved in the isolated grid.
- Rooftop solar remains the dominant contributor during daylight hours, with large-scale wind, solar hybrids and battery storage providing critical balancing support.
These developments paint an encouraging picture for Western Australia’s energy future. With record-setting battery performance, expanding storage infrastructure in key transition zones like Collie, and innovative programs such as Project Jupiter, the state is building a cleaner, smarter and more reliable grid that benefits households, businesses and the environment alike. The momentum is strong — and it’s only building from here.
