Energy Storage

Your energy storage experts

Today's battery technology is safe, reliable, and maintenance free. All battery system designs that we sell are tested in our own homes or on our warehouse before hitting the market, ensuring that they perform as expected.


The PHI 3.4TM kWh 60 Amp deep-cycle Lithium Ferro Phosphate (LFP) battery is optimized with proprietary cell architecture, power electronics, BMS and assembly methods. It is modular, lightweight and scalable for installations that range from kWh to MWh. Provides power security and seamless integration of renewable and traditional sources of energy in conjunction with or independent of the grid: net zero, peak shaving, emergency back-up, portable and mobile. Learn more at
Blue Ion 2.0

Blue Ion 2.0

Blue Planet Energy's Blue Ion 2.0 is a high performance Lithium Iron Phosphate battery. Rapid recharging captures all the energy your solar panels dish out. 100% discharge means you can use the entire battery, unlike some battery technologies that only allow 50% discharge. The system comes in a full-integrated, compact cabinet, and has a robust online monitoring system accessible from your phone or computer. Learn more at
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The Sonnen eco is an energy storage solution that utilizes intelligent energy management software, ideal for grid-interactive systems. The battery can be programmed to charge from the solar panels and discharge at night, minimizing your dependence on grid energy, or be programmed to operate in back-up mode, providing electricity incase the grid shuts down. It's AC-coupled configuration makes it easy to retrofit on existing PV systems. Learn more at

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Sonnenbatterie for energy storage in Honokaa, HI

Hawker Submarine Battery

Hawker Industrial-Grade Flooded Lead Acid batteries are the best value battery on the market for off-grid homes, available exclusively through RES. We receive these batteries 3 years used, test and refurbish them, and sell them at a heavily discounted rate. They come in individual 2V 800AH cells, sold with battery cables included, a 1-year full replacement warranty, and 5 - 10 year expected life. Call us today to learn more (808) 775-7410.
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