Hawai'i more than doubled the amount of solar power installations that are tied to electric grid last year, according to data in a new Solar Energy Industries Association report.

The annual review included figures showing 14 megawatts of solar power was installed here last year, or the sixth-highest amount among all states. That compared to the 13 megawatts in place in the state prior to 2009.

The report also cited Energy Information Agency data showing Hawai'i accounted for 5 percent of solar water heater shipments in 2008, or the fourth-highest among states.