Home backup batteries store electricity for later use and can be used with or without solar panels. The median battery cost on EnergySage is $1,037/kWh of stored energy. Incentives can dramatically lower the price of batteries, but the 30% federal tax credit ends after Dec. 31 . . The cost of home battery storage has plummeted from over $1,000 per kilowatt-hour (kWh) a decade ago to around $200-400/kWh today, making residential energy storage increasingly accessible to homeowners. Battery pack prices alone have dropped to a record low of $70-$108/kWh, representing a 93% decline over the past decade. For Texas homeowners. . One way you can estimate the cost of a battery is by its energy storage capacity, measured in kilowatt hours. The average cost of a professionally installed, grid-tied home battery is generally between $1,000 to $1,500 per kWh, according to McDonald. This means if you want a 12 kWh battery, expect. . The battery storage technologies do not calculate levelized cost of energy (LCOE) or levelized cost of storage (LCOS) and so do not use financial assumptions. Therefore, all parameters are the same for the research and development (R&D) and Markets & Policies Financials cases. Key price ranges include: Entry-level systems (10–15 kWh): $10,000–$20,000 Designed for partial home backup (e., critical appliances like refrigerators and lights).