An average-sized retail store or office usually requires around 30kW up to 100kW depending on output. Businesses that require more than 100kW can include larger factories and offices, with the largest types of commercial properties utilising over 250kW. [1]

The energy requirements for a commercial property will be significantly higher than that of a residential property. Depending on the type of business that you have, you’ll need to ensure that you have a system with enough kW to match your commercial property’s output.