February 23 (Renewables Now) - A subsidiary of US power company AES Corp (NYSE:AES) has broken ground on what it says is the largest solar-plus-utility-scale-battery system in the state of Hawaii.
AES Distributed Energy (AES DE) is building the facility on former sugar land between Lawaʻi and Koloa on Kauaʻi's south shore. The project envisages installing a 28-MW solar photovoltaic (PV) park and a 100-MWh, five-hour duration energy storage system.
It was announced in October 2017 that the complex will combine SunPower’s Oasis power plant system, E-Series solar panels and Oasis solar trackers. The generated electricity will be supplied to customers of member-owned cooperative Kauaʻi Island Utility Cooperative (KIUC).
“The project will provide 11% of Kauaʻi’s electric generation; increasing KIUC’s renewable sourced generation to close to 60%. At 11 cents per kWh, the pricing is well below the cost of diesel and will not only provide downward pressure on rates, but also helps us avoid the use of 3.7 million gallons of diesel each year,” said David Bissell, KIUC’s president and CEO.