Quotes for solar-only systems fell to $2. Battery prices also hit historic lows, with the median quoted storage price landing just below $1,000/kWh for the first time. Customers pointed to backup power, self-supply, and savings on utility rates as key reasons to install storage. “Severe weather events like Hurricanes Helene and Milton have shown how. . The National Renewable Energy Laboratory (NREL) publishes benchmark reports that disaggregate photovoltaic (PV) and energy storage (battery) system installation costs to inform SETO's R&D investment decisions. Residential solar installations declined sharply in 2024, dropping 31% year-over-year according to Wood Mackenzie. It details initial investment costs, operational expenses, potential savings on electricity bills, and the impact of. .