- Independent power producer (IPP) Clearway Energy Group has brought a 36MW solar PV plus 144MWh battery energy (BESS) storage system project online in O’ahu, Hawaii.
- It is the second of two solar-plus-storage projects totalling 75MW of PV and 75MW/300MWh of battery energy storage, with Wärtsilä bringing the first online back in August last year.
Independent power producer (IPP) Clearway Energy Group has brought a 36MW solar PV plus 144MWh battery energy (BESS) storage system project online in O’ahu, Hawaii, delivered by energy technology firm Wärtsilä. Clearway announced the project’s commercial operation on Kamehameha Schools’ lands in Waiawa in Central O‘ahu last week. Clearway stated the latest project represents US$150 million of investment. All of its renewable projects on the island are connected to the grid operated by Hawaiian Electric, the main utility.
It is the second of two solar-plus-storage projects totalling 75MW of PV and 75MW/300MWh of battery energy storage, with Wärtsilä bringing the first online back in August last year. The two projects are also the first large-scale ones of their kind on O’ahu, the main island in the archipelago and the home of Honolulu’s capital. Wärtsilä provided its lithium iron phosphate (LFP) based GridSolv Quantum BESS solution, which is controlled by its energy management system (EMS), the GEMS Digital Energy Platform. Gridsolv uses lithium iron phosphate (LFP) batteries. Construction firm Moss meanwhile oversaw the building of the site.
The CEO of Clearway, Shelee Kimura, said, “Stabilising energy costs for our customers is a priority, and projects like Waiawa Solar will feed electricity to the grid at about half the cost of oil. We appreciate Clearway’s and Kamehameha Schools’ contributions as we all work together to decarbonize our energy system. We look forward to bringing more community benefits as six additional projects come online over the next two years on O‘ahu”. The Hawaii projects are part of a 500MW/2GWh portfolio that Wärtsilä delivers for Clearway across Hawaii and California. In the latter, Wärtsilä is building BESS units totalling 275MW/1.1GWh to adjoin the Daggett 2 and Daggett 3 projects in San Bernadino, which it will complete this year.