HI HB2003

Adds a new tax credit category for "firm renewable energy systems" at an unspecified percentage of actual cost or $750,000, whichever is less, with a minimum capacity of 1,000 kilowatts of direct current.

Defines "firm renewable energy system" as a renewable energy technology system capable of continuously producing energy 24 hours per day, 365 days per year at contracted capacity, subject only to routine maintenance and emergency repairs.

Extends refundability provisions in subsections (g) and (h) to firm renewable energy systems, allowing eligible taxpayers to receive refunds if the tax credit exceeds income tax liability.

Applies the tax credit expansion to taxable years beginning after December 31, 2021.