Lithium Battery Company Battery-Wall pairs well with solar panel systems, especially if your utility has reduced or removed net metering, introduced time-of-use rates, or instituted demand charges. Installing a storage solution like the LBC Battery-Wall with a solar energy system allows you to maintain a sustained power supply during the day or night, as long as you store enough power from your panels when the sun is shining. The DC Battery-Wall has a roundtrip efficiency of 92 percent, compared to the AC model's efficiency of 89 percent, according to Lithium Battery Company. 98% of our electricity comes from our solar panels and Battery-Wall - powering our home, business, and our electric cars. It's priceless knowing that our house runs on 98% solar. For more questions about our Battery-Walls please contact us at 844-438-5484.