The Australian government has awarded contracts to 10 projects in Western Australia, securing 1.9 GW of renewables and 3.7 GWh of battery storage under the Capacity Investment Scheme. The major procurement highlights a national focus on firming capacity, a need underscored by extreme market volatility this week. NEM spot prices surged 88.3 per cent week-on-week to average $89.52/MWh, a sharp reversal from recent lows that demonstrates the persistent price risk the CIS is designed to mitigate.
This federal investment in WA aligns with the state government's own plans to create a dedicated clean energy fund for transmission and network upgrades. The state is preparing its grid for the scheduled exit of government-owned coal power stations. This coordinated effort helps explain why WA's isolated SWIS grid is poised to reach an 80 per cent renewable share ahead of the NEM. Analysis suggests state ownership of key utilities is enabling the grid to meet decarbonisation targets more effectively than the broader national market.
At the distributed level, Australia's solar boom continues to break records. Small-scale PV installations hit a new monthly high of 442 MW in April, a 31 per cent increase driven by accelerating home battery adoption. But the influx of daytime solar is creating significant commercial headwinds for large-scale projects. Genex Power confirmed it will build Australia's largest solar project, Bulli Creek, in smaller, incremental stages to mitigate the financial risk of frequent negative wholesale prices, even with a large-scale battery included in the project.
The utility-scale storage pipeline is also advancing, with two battery projects in South Australia and Queensland totalling 2.15 GWh clearing federal environmental assessment under the EPBC Act. However, the cost of enabling this new generation remains a major point of contention. EnergyAustralia has formally urged the Australian Energy Regulator to reject Transgrid's bid to recover a $1.2 billion cost blowout on its HumeLink project from consumers. The retailer argues the network operator, not households, must bear the financial risk of the 25 per cent budget increase.
State governments are making major policy moves ahead of election cycles. The Victorian Labor government pledged $124.5 million to develop Australia's first dedicated offshore wind port in its upcoming budget. The economic case for such investments is strengthening globally, with a new SolarPower Europe report finding rapid solar and battery deployment could save the EU €223 billion in gas imports by 2030. In transport, Norway's record 98.6 per cent EV market share in April offers a benchmark for the potential scale of Australia's own electric vehicle transition.
Further evidence of this shift came as Tesla secured its first Australian emissions credits from rival carmakers, though its local energy storage operations continue to generate more revenue than its EV sales. Looking ahead, the debate over network costs will intensify as the AER progresses its multi-year transmission determinations for Transgrid, ElectraNet, and Murraylink. In the near term, market participants are focused on AEMO's technical consultations, with submissions on the Keilor Terminal Station upgrade and a new real-time data package due in mid-June.