Solar Battery Systems

Now that NEM and CGS programs have been closed across the Hawaiian Electric service territories, the Customer Self Supply (CSS) design is the most practical and cost-effective option for Big Island homeowners wishing to go solar electric. New solar battery systems are now available that allow CSS customers to store and use solar-generated power at night and automatically pull power from the utility when needed. These systems integrate seamlessly into your home’s electrical system to maximize the power of your PV system while giving you all the convenience of grid-supplied power. Plus, these battery systems can offer back-up power during utility outages.

Tesla Powerwall

Tesla Powerwall batteries integrate with solar to harness the abundant power of the sun. The elegant Powerwall is compact and simple to install, offering a completely automated system that requires no maintenance. The most affordable home battery in terms of cost per kWh, Powerwall economically meets the daily energy needs of most homes.

Learn more about Tesla Powerwall »

Tesla Powerwall Certified Installer


Simple and resilient solar batteries that require no maintenance. Aquion's batteries are abuse tolerant and can handle wide temperature ranges and being left at partial states of charge without degradation.

Thousands of cycles and deep cycling capability means greater usable energy which results in competitive up-front costs and little or no maintenance costs. Aquion's combination of performance, affordability, safety, ease of use, and sustainability make Aquion batteries ideal for solar energy storage systems.

Aquion S30-0080 Battery

Aquion Energy