Solar makes seriously good sense for any business or campus (university, college, school, hospital or business park), with a decent roof or plot of land and a long-term intention to stay in their premises for 10+ years. Ideally the business should own the freehold of their premises, or have a long-lease over the property.
The lifetime cost per kWh of solar electricity is now 5.5p per kWh... this compares to 10-12p for electricity purchased from the grid.
In the right business, the system will more than pay for itself, should be financable if necessary and will significantly improve your company’s impact on the environment.