Each system, including 5 kW panels, a 10 kWh lithium battery bank, and real-time remote monitoring, cost around USD $25,000, including shipping and installation. Let's talk about actual prices. Here are standard ballpark estimates (in USD):
[pdf] EnergySage reports that installation of a 12kW residential system would cost approximately $29,649 before incentives, which comes out to around $2.53 per watt. SolarReviews gives an average price of $21,816 for a 7.2kW system, or about $3.03 per watt, excluding tax credits.
[pdf] Price is $387,400 each (for 500KWH Bank) plus freight shipping from China. To discuss specifications, pricing, and options, please call Carl at (801) 566-5679. Each container with all of the equipment will weigh less than 16 tons. Fully tested before being shipped.
[pdf] The bid winner is Chongqing Sanshuo Photoelectric Technology Co., Ltd. , with the bid price of 48,651,238 yuan and the unit price of 2.596 yuan/watt (calculated according to the DC side capacity). Earlier, on May 21, the project issued a tender announcement.
[pdf] Cost Savings: Reduce charging costs by 70% compared to grid electricity Installation Cost: Home systems range from $799 to $19,999 depending on capacity ROI Timeline: Average payback period of 6-8 years with federal incentives
[pdf] Know the Average Costs: Expect to pay between $5,000 – $8,000 for lithium-ion batteries, $200 – $800 for lead-acid batteries, and $1,000 – $2,000 for saltwater batteries.
[pdf] 
