HI SB2820

Amends Hawaii's renewable portfolio standard (RPS) calculation to measure renewable energy as a percentage of total electrical energy generated from grid-connected systems, rather than as a percentage of electrical energy sales.

Adds a new definition of "grid-connected" to mean interconnected to the Hawaii electric system under commission-approved standards, excluding emergency-only generation.

Requires all electric grid-connected energy systems to achieve 100 percent renewable energy by December 31, 2045, maintaining existing RPS targets of 10% by 2010, 15% by 2015, 30% by 2020, 40% by 2030, 70% by 2040, and 100% by 2045.

Corrects accounting discrepancies in the current RPS calculation by including customer-sited renewable generation in the denominator and accounting for energy losses between generation and customer meters.

Takes effect upon approval and applies to all electric utility companies selling electricity for consumption in Hawaii.