KIUC is making significant progress toward its goal of using renewable resources to generate 70 percent of Kauai’s power by 2030.
By early 2019, roughly 50 percent of the electricity generated on Kauai will come from a mix of renewable resources: solar, hydropower and biomass. That’s up from 8 percent in 2010. The resulting increase in renewables allowed KIUC to reduce its use of fossil fuels by more than 33 percent, or roughly 15 million gallons annually.
On most sunny days, 90 percent or more of Kauai’s daytime energy needs are met by renewable sources. KIUC’s solar resources currently consist of 51 megawatts of utility scale photovoltaic (PV) and 22 megawatts of distributed photovoltaic. KIUC’s utility-scale solar fields contain battery components, which have helped to increase system reliability by 50 percent over the past 10 years.
In March 2017, KIUC unveiled the world’s first utility-scale solar plus battery storage generation facility. The 13 megawatt Tesla solar field, which is coupled with a 52 megawatt battery storage system, allows KIUC to store solar power during the day and dispatch it over a four-hour period during the evening peak demand.
In May 2018, KIUC was recognized by the Smart Electric Power Association as top utility in the nation for energy storage watts per customer – topping the next largest by nearly 8 times the storage capacity. KIUC was also recognized by SEPA as fifth in the nation for annual megawatts of energy storage.
By the end of 2018, KIUC and partner AES Distributed Energy had opened the island's second solar plus battery storage facility in Lawai: 28 megawatts of PV coupled with 5 hours of battery storage will move roughly 100 megawatt hours of solar energy to the evening peak.
KIUC’s renewable portfolio includes more than 10 megawatts of hydro power, and 7 megawatts of biomass.
Learn more about KIUC's renewable progress here.
Learn more about the Green Energy Team biomass plant here.