King Windward Nissan said its new rooftop solar electricity generating system is expected to save the auto dealership about $30,000 on its electric bill annually.

The 100-kilowatt system, designed and intalled by Sunetric, will produce an estimated 362 kilowatt hours of electricity each day, offsetting 6,620 barrels of oil that would have otherwise been imported to Hawaii and burned for electricity over the next 30 years, the dealership said in a news release.

King Windward Nissan will be one of the local Nissan dealerships selling the first Leaf electric vehicles scheduled to arrive in Hawaii early next year.