CoolWatts Energy Storage System

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What’s an energy storage system?

Many solar owners are looking at ways to connect their system to a battery so they can use that energy at night or in the event of a power outage. Simply put, an energy storage system is a battery/inverter system that is charged by a connected solar system, and supplies the essential power use in your home when the sun is down.

A Complete Energy Storage System consists of three components.

Solar Panel

Solar panels have one job: They collect sunlight and transform it into electricity. But they can make that energy only when the sun is shining. That’s why the ability to store solar energy for later use is important: It helps to keep the balance between electricity generation and demand.

Hybrid Inverters

Inverter converts the direct current (DC) electricity generated by your solar panels into alternating current (AC) electricity for your home’s appliances. Hybrid inverters are designed to incorporate storage. It is a critical component of any solar energy system

Lithium-ion Batteries

Lithium-ion batteries are rechargeable because their chemical reactions are reversible, allowing them to absorb power and discharge it later. Lithium-ion batteries can store a lot of energy, and they hold a charge for longer than other kinds of batteries.

Key Benefits


Zero out your electricity bill!


No more outages, no disruptions!


Go green and be environmental!



Want to be totally independent from the grid? Our Off-Grid Energy Storage System will give you that much needed independence, letting you save more on energy costs and be friendlier to the environment. By having a Energy Storage System, you can choose to switch to solar when energy consumption is at its highest. An Energy Storage System will also provide you energy should there be power interruption in your area.


Businesses can suffer significant financial losses when the power goes out. For much less money than a full off-grid system, an emergency backup system will provide just enough energy to run your most critical loads at night while the grid is down. If you already have a solar on your business, you are more prepared than most. Our commercial Energy Storage System will allow you to expand security around the clock for your most critical power loads.

Our Products

Coolisys CoolWatts Energy Storage System offers AC/DC hybrid inverters and Lithium Battery Solutions that works with pre-installed or new Solar Panels.

AC Hybrid Inverter for Battery Solutions

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DC Hybrid Inverter for Battery Solutions

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9.6kWh LFP Lithium Battery Solution

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12kWh LFP Lithium Battery Solution

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