Hawaii ’s average solar installations slumped 56 % in the first half of this year , according to the state 's Department of Business , Economic Development and Tourism . The number of solar permits issued by the City of Honolulu dropped 84 % in 2009 from two years earlier , data from solar watcher Marco Mangelsdorf ##f . Most solar in Hawaii has been installed " behind the meter " on homes and businesses under net metering and , since 2009 , under the Customer Grid Supply program , which is due to end this month . The remaining option for those who want to install solar in Hawaii is to install expensive batteries to soak up excess capacity .
Hawaii’s average solar installations slumped 56% in the first half of this year, according to the state's Department of Business, Economic Development and Tourism. The number of PV permits issued by the County of Maui dropped 84% in Q3 from two years earlier, data from solar watcher Marco Mangelsdorf show. Most solar in Hawaii has been installed "behind the meter" on homes and businesses under net metering and, since 2015, under the Customer Grid Supply program, which is due to end this month. The remaining option for those who want to install solar in Hawaii is to install expensive batteries to soak up excess capacity.