Discover how to configure a home energy storage system with Yohoo Elec. Learn about battery capacity, DOD, C-rate, power matching, and practical configuration strategies for solar self-use, backup power, peak-shaving, and EV charging. Nominal Capacity – The total energy a battery can deliver. . Solar power storage for home systems allow you to capture excess electricity generated by your solar panels and use it when the sun isn't shining. Here's what you need to know: Imagine this: a storm knocks out power in your neighborhood, but your lights stay on, your refrigerator keeps running, and. . A residential photovoltaic (PV)-storage system primarily consists of PV modules, energy storage batteries, storage inverters, metering devices, and monitoring management systems. At the core are the batteries that hold the energy.