The energy storage capacity of a photovoltaic power station refers to its ability to store excess solar energy for later use. Think of it like a giant battery bank that ensures consistent power supply even when the sun isn't shining. Sometimes two is better than one. Coupling solar energy and storage technologies is one such case. The reason: Solar energy is not always produced at the time. . We expect 63 gigawatts (GW) of new utility-scale electric-generating capacity to be added to the U. power grid in 2025 in our latest Preliminary Monthly Electric Generator Inventory report. This amount represents an almost 30% increase from 2024 when 48. 6 GW of capacity was installed, the largest. . The guide below turns that decision into a repeatable process you can apply to homes, commercial sites, or small industrial loads—anchored in real specifications from Baufar's PV kits, batteries, and inverters for on-site validation.