In addition to maximizing the value of solar, pairing solar PV with a battery storage system can also reduce energy costs (storing electricity when it is cheapest and discharging when it is most expensive). Three Reasons to Add Battery Storage to Your Solar PV System.
Energy Plus battery costs depend on capacity (kWh), chemistry (lithium-ion vs. lead-acid), brand reputation, installation complexity, and regional market dynamics. Prices typically range from $8,000-$15,000 for residential systems, with commercial setups exceeding $30,000.
They're more efficient, have a longer cycle lifespan, and perform better in hotter environments, making them a more cost-effective option than lead-acid batteries.