Q1: What is the average price per kWh battery storage for commercial projects in 2025? A1: While prices vary by region and project size, commercial and industrial (C&I) systems typically range between $250 and $450 per kWh on an installed basis. This includes the battery . DOE's Energy Storage Grand Challenge supports detailed cost and performance analysis for a variety of energy storage technologies to accelerate their development and deployment The U. Battery storage continues to dominate investment, driven by scale economies and resource limits. 5 kWh residential system costs $6,000 to $23,000 installed. Costs vary by technology, scale.