Choosing the Best Solar Battery: A Review of Top US Solar Brands
The United States Solar Industry is growing at a rapid rate. According to the US Department of Energy, thousands of companies specialize in solar energy generation as well as storage and battery technologies. These range from large multinational corporations to smaller, locally-based companies.
Reduced upfront costs, ongoing savings, and potential financial incentives help create a smoother transition to solar-powered energy storage.
By taking advantage of solar incentives, homeowners can accelerate their return on investment for solar batteries.
Some well-known solar brands in the U.S. include:
Top Solar Batteries: Comparing Generac, Tesla, LG, Enphase and Other Popular Brands
The Tesla Powerwall 2 is a lithium-ion solar battery that’s mostly used with Tesla solar panels. However, you can charge the battery with any electricity source to use as a backup during a power outage.
As of 2023, a single Powerwall costs around $12,000 to $14,500. However, after deducting the 30% federal solar tax credit, the price of the unit drops to $8,400 to $11,500.
Installing the Tesla Powerwall provides you with high storage capacity and power output in exchange for your money.
The energy capacity of the Tesla Powerwall is 13.5kWh and it has a power output of 5.6kW. The Tesla Powerwall also comes with a 10-year warranty. The efficiency of the battery is 97.5%, and it has a depth of discharge of 100%. The battery also has an integrated inverter and rectifier.
Known for their high-efficiency solar panels, SunPower expanded it's list of products to include solar batteries in 2019.
SunPower offers two battery options. The first is the SunVault Storage 13 with a 12 kWh capacity. The second is the SunVault Storage 26 with 24 kWh. The batteries have a round-trip efficiency of 85% and a 10-year warranty.
The batteries also have a 70% end-of-warranty capacity.
Enphase batteries cost between $3,000 and $8,000 on average, depending on which of its four models you're purchasing. Its four models include the following:
Each of the Enphase models has a round trip efficiency of 96% and a 100% DoD. They are also LFP batteries which are safer for use and have a longer lifespan.
The battery has a 10-year warranty and 4,000 cycle clause. All four battery models also have a guaranteed end-of-warranty capacity of 70%. The batteries are made to work with Enphase inverters only.
LG solar batteries for homes have a usable energy capacity of 9.8kWh and a DoD of 95%. Additionally, LG Chem Resu 10H batteries have a warranty of 10 years with 4,000 cycles. It also has one of the highest round-trip capacities for a battery that uses NCM technology at 94.5%.
While the intitial cost of solar batteries may be high, they save money in the long run. Solar batteries are worth getting, especially in areas where there is a high cost of electricity, or where net metering is not available. They also help in areas where the weather condition is bad. Generally, batteries help you cut the cost of electricity retailers and store energy for near-future purposes.
The Generac PWRcell is a stand-alone energy storage and management system. It is designed for residential use and may function with or without the addition of solar panels.
Most users prefer the model since it serves as an energy backup in the case of power outages and other issues. Most importantly, it monitors the energy load and minimizes waste.
When paired with a solar panel, the Generac PWRcell can be used to power homes and businesses, similar to the Tesla Powerwall, Enphase IQ, or LG Chem Resu.