Mobile solar containers offering 50-500 kWh capacities now deliver power at $0. 18/kWh, undercutting generators by 40%. “We've deployed 72 units for copper mines in Karaganda,” shares Arman Zhakupov, project lead at Astana Solar Solutions. However, prices aren't always simple—they vary depending on size, materials, certifications, and location. Let's break down what really goes into the cost and whether it's worth your money. According to data made available by Wood Mackenzie's Q1 2025 Energy Storage Report, the following is the range of price for PV energy storage containers in the market:.