Recent pricing trends show 20ft containers (1-2MWh) starting at $350,000 and 40ft containers (3-6MWh) from $650,000, with volume discounts available for large orders. Receive exclusive pricing alerts, new product launches, and industry insights - no spam, just valuable content. Recent pricing. Intermediate storage unit: average price is $5. 30 per day for units ranging in size from 4. 56 MWp solar power system and a 1 MW battery storage system. The solar farm will be developed in two phases of 60 megawatts each. Ever tried bargaining with a solar salesman? Here's what you should pay: Pro tip: The new “Sun Tax Credit” slashes costs by 25% for systems under 10kW! 1. Here's what's shaping the market: Pro Tip: Systems with modular design could save 30% in long-term.