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.

• 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. CGS Plus succeeded the Customer Grid-Supply (CGS) program, which is no longer available to new applications.
• 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.

Battery Bonus

Hawaiian Electric will pay a cash incentive for customers on Oahu and Maui to add energy storage (a battery) to an existing or new rooftop solar system. This one-time incentive will help move Hawaii toward our 100% clean energy goal by 2045 and help smooth the transition following the retirement of the AES coal-fired plant in 2022.

• Battery Bonus: Cash incentive to add energy storage to an existing or new rooftop solar system.

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.

• Net Energy Metering Plus (NEM Plus) allows current NEM customers with a signed agreement to add additional non-export capacity to their system.
• Net Energy Metering (NEM) is closed to new applicants.

Apply Online and Download Forms

You may access the Customer Interconnection Tool to apply online. Please see our How To Guide (PDF), How To Make An Amendment Guide (PDF), Training Video, and Frequently Asked Questions for more information.