Hawaii SB669 mandates rooftop photovoltaic systems for new single-family homes in developments of 20 or more dwellings, starting January 1, 2026.
Hawaii SB669 amends Chapter 196 of the Hawaii Revised Statutes to require new single-family homes in developments of 20 or more dwellings to include a rooftop photovoltaic energy generating system starting January 1, 2026. The system must have at least five kilowatts of generating capacity and include an energy storage device. Variances from this requirement can be requested if installation is impracticable due to poor solar resources or cost-prohibitive based on a life cycle cost-benefit analysis.
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