Hawaii SB669 mandates rooftop photovoltaic energy systems for new single-family homes in developments of 20 or more dwellings starting January 1.

Hawaii SB669 amends Chapter 196 to require rooftop photovoltaic energy systems for new single-family homes in developments of 20 or more dwellings starting January 1, 2026. The systems must have at least five kilowatts of generating capacity and a life cycle of 25 years. The chief energy officer can approve variances if the installation is impracticable due to poor solar resources or cost-prohibitive based on a life cycle cost-benefit analysis. The officer must publicize variance applications and their dispositions within seven days.

Hawaii SB669 mandates rooftop photovoltaic energy systems for new single-family homes in developments of 20 or more dwellings starting January 1.

Hawaii SB669 amends Chapter 196 to require rooftop photovoltaic energy systems for new single-family homes in developments of 20 or more dwellings starting January 1, 2026. The systems must have at least five kilowatts of generating capacity and a life cycle of 25 years. The chief energy officer can approve variances if the installation is impracticable due to poor solar resources or cost-prohibitive based on a life cycle cost-benefit analysis. The officer must publicize variance applications and their dispositions within seven days.