Private Rooftop Solar
Rooftop Solar Options for New Projects
These programs are the available options for new solar customers to install solar panels on their rooftops. Some programs work better with battery storage, and others may restrict exporting during certain times or when circuit capacity is reached to ensure grid stability.
For customers considering rooftop solar on Hawaii Island:
Two available programs, CGS Plus and Smart Export, have approved solar installation applications that, when built, will fill half the programs' current capacities allowed by the Public Utilities Commission. There's still room in these programs for now and we will alert you when 70 percent and 100 percent are reached, as the Commission requires.
- Customer Grid-Supply Plus (CGS Plus) systems must include grid support technology to manage grid reliability and allow the utility to remotely monitor system performance, technical compliance and, if necessary, control for grid stability.
- Smart Export customers with a renewable system and battery energy storage system have the option to export energy to the grid from 4 p.m. – 9 a.m. Systems must include grid support technology to manage grid reliability and system performance.
- Customer Self-Supply (CSS) is intended only for private rooftop solar installations that are designed to not export any electricity to the grid. Customers are not compensated for any export of energy.
- Customer Grid-Supply (CGS) participants receive a PUC-approved credit for electricity sent to the grid and are billed at the retail rate for electricity they use from the grid. The program remains open until the installed capacity has been reached.
For Net Energy Metering (NEM) Customers
In 2015, the PUC declared the NEM program fully subscribed and closed to new customers. We still provide support for existing customers, and have a new option (NEM Plus) for current NEM customers who would like to add additional non-export capacity to their systems.
Apply Online, Change of Ownership and Forms
Change of Ownership
Planning to sell or purchase a property with a rooftop solar system already installed, or one with a pending agreement in place? Click here for information on what you need to do to keep your rooftop solar program agreement in good standing.
Additional Distributed Energy Resources (DER) Forms
The safe, reliable operation of the electric grid is important to everyone. The combination of utility system upgrades and leading-edge, customer-facing technology is providing new opportunities to connect more private rooftop solar systems in less time with greater efficiency. All new rooftop solar systems in Hawaii are now required to use advanced inverters that help maintain a stable and reliable grid.