How Much Do Commercial Solar Panels Cost? | Kee Business
Overview of Commercial Solar Panels Costs Average Costs for Different System Sizes. Here is a breakdown of average costs of commercial solar panels in the UK excluding VAT: 10 kW: £13,000 – £15,000, with a break-even time of 5-6 years. 20 kW: £16,000 – £30,000, with a break-even time of 4-5 years.