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    What is House Energy Storage System?

    Household energy storage systems are designed to store excess energy generated by solar panels or the grid for later use. This allows homeowners to have access to power during an outage or at night. As the popularity of these systems has grown, homeowners with solar arrays have recognized the benefits of lithium battery storage. On sunny days, their solar panels often produce more than enough energy to power their homes, enabling them to sell any excess energy back to the local utility.

    Are Home Batteries Worth It?

    Home storage batteries are becoming an increasingly attractive option for those seeking to reduce their electricity bills, especially in sunny states. By capturing clean energy from solar panels and storing it in batteries, homes can move closer to achieving Net Zero energy. Not only does this approach reduce energy costs, but it also increases resiliency, enabling essential electric-powered items such as refrigerators and freezers to continue running during natural or human-made disasters.

    As the electric grid becomes more sophisticated, homeowners may even be able to sell their stored energy back to utilities during peak demand hours. While solar-powered batteries have been available for some time, the market is still relatively young and growing rapidly, with multiple manufacturers ramping production to meet demand.

    It is important to be cautious of marketing statements about battery capacity, as the amount of power stored depends on individual home energy needs. While some homeowners may seek to fully disconnect from the grid, lithium batteries typically only provide enough energy to power an average American home for a few hours, not days.

    How Many Batteries Are Needed to Power a House?

    To determine the necessary battery storage for your household, you must first evaluate your energy consumption, which is measured in kilowatt-hours over a specific period. For instance, if your home uses 1,000 watts for ten hours daily, then your energy consumption is 10 kWh per day. When sizing the panels and batteries, you must consider the battery’s performance and the amount of continuous output you need. It’s crucial to consult with a solar energy specialist to ensure that the panels and batteries are appropriately sized for your requirements.

    What Are Time of Use Home Batteries?

    Home batteries not only help you cut down on your energy bills but also offer various other benefits. For instance, if your utility company charges higher rates during peak hours, a home battery can help you switch to stored energy and reduce your dependence on expensive utility power, thereby lowering your average cost per kilowatt-hour (kWh). Also, if you own an electric vehicle (EV), you can recharge it using stored electricity during high-demand times. Although time-of-use (TOU) rates are not common outside California, several utilities are testing their own TOU programs.

    Typically, most utilities follow net metering rates, where they buy electricity from solar households at a per kilowatt charge equal to what they charge for power. However, in such cases, electricity storage offers no financial benefits as the utility charges you the same rate for selling electricity as they do for purchasing it. It’s therefore essential to consult a solar energy professional to determine whether home batteries could benefit you financially.

    Which Home Battery Is Right for Me?

    Battery technology has come a long way since its inception, and the breakthrough came with the development of lithium-ion batteries. These batteries, commonly found in cell phones and other devices, capture the energy generated from solar panels as direct current (DC) and convert it through an inverter to alternative current (AC), the kind used in American homes.

    There are various types of battery storage systems available, including DC-coupled systems, AC-coupled systems, AC battery systems, and hybrid converter systems. With the complexity of options, it’s crucial to seek advice from a qualified battery installer to determine the system that will work best with your solar array and the infrastructure of your local utility.

    The size of your battery can also be tailored to your home’s size and solar array. A larger home may require a bigger battery. Once again, it’s best to consult with an SWA energy expert and electrician to ensure that the sizing is adequate and that the system will meet your expectations.

    Solar Rebates and Incentives

    Investing in battery technology can be incentivized for homeowners, especially when paired with solar installations. The federal government offers a 26% tax credit for solar battery purchases, but to receive the full credit, the energy stored must come entirely from the sun, and the system must be in place by the end of 2020. The tax credit will drop to 22% in 2021 and will expire in 2022.

    However, some states, including California, Maryland, and Massachusetts, are considering offering tax credits for batteries. Keep an eye on your local legislature for updates on these incentives. You can use our Find Rebates tool to search for solar rebates in your area.

    At SWA ENERGY, we offer reliable, high-quality battery energy storage systems for households. Contact us now to get the battery storage system that meets your needs.