Batteries：A Guide For Home Solar Systems
The Importance of a Battery Pack for Residential PV Systems.Whether you choose to go completely off-grid or stay connected to your local utility company, installing a battery pack for residential PV systems might be a good idea in the event of a power outage. As mentioned above, batteries are necessary for off-grid systems that want energy at night and can also help to lower your reliance on energsy from the grid for grid-tied systems.
When searching for the best batteries for your home PV system, you need to consider the battery capacity, as measured in kilowatt-hours (kWh). You can use a simple home energy usage calculator to get a rough idea of how much energy your home uses during the night. If, for example, you use around 10 kWh hours of energy per day (the average household uses about 30 kWh per day, according to the U.S. Energy Information Administration), you would need a battery system with at least that amount of storage if you wanted to eliminate reliance on energy your home pulls from the grid.
It would help if you investigated the depth of the discharge rating for the batteries you are considering purchasing. This refers to the amount of the battery's capacity that can be safely and effectively used before compromising its performance. For example, if a 10 kWh has a depth of discharge of 85%, you could use 8.5 kWh of the energy in the battery before needing to recharge it.
Because batteries are a significant investment that will increase the overall price of a home solar power system, you should also always look for batteries that come with at least 10-year warranties.UFO POWER provides long battery life. The appearance is beautiful and generous. After-sales quality can be guaranteed. More details can be found on the official website.