While pumped hydro plants still account for around 96% of installed capacity of stationary energy storage worldwide, there will be more than 28GW of lithium batteries deployed for stationary storage applications by the year 2028, Navigant Research has predicted.
A large tranche of utility-scale solar – and storage – projects in Hawaii has been approved by the state’s Public Utilities Commission (PUC), each quoting a cost per kilowatt hour of US$0.10 or under.
While a tranche of seven solar-plus-storage projects under proposal in Hawaii would see renewable energy make its biggest competitive play against fossil fuels in the US island state so far, a project just completed will deliver energy well into the evening at just US$0.11 per kWh.
Following a report on Friday that Hawaiian Electric has contracted PPAs with 75MW of solar projects including battery storage with developer Clearway, the utility has put before regulators proposals for five other grid-scale projects.
San Francisco-headquartered firm Clearway Energy Group has signed power purchase agreements (PPAs) with utility Hawaiian Electric Company for two solar-plus-storage projects on Oahu, Hawaii, with a combined PV capacity of 75MW.
Following news yesterday of the first grid-scale solar-plus-storage system on the Hawaiian island of Molokai, two more modestly-sized projects show the potential diversity of applications for energy storage in the US state.
Hawaii has been a prolific installer of both rooftop solar and latterly batteries for energy storage and one of the US state’s smaller islands looks set to get its first ever grid-scale solar-plus-storage system.
Hawaii’s KIUC, the top-ranked US utility in 2017 for energy storage deployment per customer by SEPA (Smart Electric Power Alliance), will pay less than US$0.11 per kWh for power from a new solar-plus-storage facility.
The residential energy storage market in the US has just enjoyed one of its biggest growth spurts so far, although action is mostly centred in specific states with supportive policies and conditions.
