When you think of batteries, you probably picture disposable batteries used in toys, TV remotes or video game controllers. But did you know you can power your entire house with one?
Home energy storage systems bring revolutionary power solutions straight to your residence. These systems utilize large, rechargeable batteries to store excess electricity, transforming your home into a mini power station. You can achieve greater energy resilience and save money.
What are home energy storage systems?
Home energy storage systems store electricity from solar panels or the grid during off-peak times when rates are lower. You can then use that stored power to power your home during high demand periods or outages.
Storage systems consist of battery cells, racks, an inverter and a management system. Lithium-ion batteries are the most common type due to their efficiency and reliability, although sodium is becoming more popular because its more abundant and might be cheaper.
Benefits of home energy storage
There are several compelling reasons to consider a home energy storage system:
- Backup power. During power outages, home energy storage systems provide a reliable source of electricity that keeps essential appliances and lights functioning.
- Reduced demand on the grid. Power grids are often strained during peak usage times. Using stored energy helps reduce demand on the grid during these times.
- Cost savings. Depending on your location and utility rates, you can save money using stored energy during peak hours or when rates are higher.
- Environmental impact: Using stored energy allows you to use clean, renewable solar power.
Potential drawbacks
One of the biggest hurdles to home battery adoption is the high upfront cost. A typical system can cost up to $10,000 or more before installation. However, some financial incentives can help offset the costs. A federal tax credit can cover up to 30% of the cost for eligible systems. State and local financial incentives may also be available in your area.
Battery size and space requirements are additional potential drawbacks to consider. Batteries usually weigh more than 200 pounds and are between three to four feet tall.
Choosing a system
When selecting a system, key factors to evaluate include battery capacity, power output, efficiency ratings, warranty coverage and compatibility with your home's electrical setup and solar panels (if installed).
Some leading manufacturers are Tesla Powerwall, LG Chem, Enphase and Generac. These systems typically have storage capacities ranging from around 10 kWh up to 30 kWh or more for larger homes. The average U.S. household uses about 30 kWh per day.
Professional installation is recommended for safety and proper integration. And if you don’t have an existing solar power system, home battery storage systems can be included at installation.
Home energy storage is an emerging technology that offers a variety of financial and environment benefits and can help transform the way you power your home.