Renewable Energy, Smart Grid, T&D, Transmission

Saft to supply energy storage system for Hawaii utility

Industrial battery maker Saft won a multi-million dollar contract by Kauai Island Utility Co-operative (KIUC) to provide a Li-ion Battery Energy Storage System (BESS) consisting of 8 Intensium Max 20 M containers to stabilize the Kauai island electrical grid. Saft’s BESS will be deployed for use as part of a new 12 MW solar energy park under construction in Anahola, Hawaii.

KIUC is the only franchised provider of electric service to its consumers on the Island of Kauai, the fourth largest inhabited island in Hawaii. The island is home to 65,000 with an economy based on tourism and agriculture.

KIUC is a standalone, vertically-integrated electric utility, and as such, provides all of the facilities, equipment and personnel required to meet the power generation, transmission and retail distribution needs of its consumers. KIUC’s all-time peak load is 78MW, serving about 35,000 meters through 13 substations from three active power generation sites.

The cooperative is working to reinvent how Kauai is powered and aggressively pursuing diversification of its energy portfolio to include a growing percentage of hydropower, photovoltaic, biofuel and biomass. KIUC is building the new $50 million solar energy park in partnership with the Department of Hawaiian Home Lands and the Homestead Community Development Corp.

Saft’s energy storage system will be used to provide stability and mitigate issues caused by intermittent fluctuations that can occur with renewable power sources. As part of the agreement, Saft will provide 6MW/4.63MWh energy storage system consisting of 8 Intensium Max 20 M containers and two containers housing an ABB 6 MW PCS to stabilize the electrical grid. This contract positions Saft as the preeminent supplier of battery energy storage solutions in Hawaii.

The system will also regulate the distribution bus voltage, serve as spinning reserve and provide frequency support during the loss of generation by pooling and integrating with other distributed KIUC energy storage system sources.

Saft continues to be a major supplier of battery energy storage solutions in Hawaii. The Kauai Island Anahola Project will be the third Saft Li-ion energy storage system installed in the state. Saft’s first two installations in Hawaii have successfully operated for two years, with the owners planning to expand the Saft energy storage system.

Deliveries for the contract are set to begin in October.