Key points
- Rooftop is usually cheaper and closer to on-site loads
- Ground-mount unlocks larger systems where the roof isn't suitable
- A structural survey is step one for every rooftop install
- Both technologies generate the same per installed kWp
Rooftop
Cheapest install if the roof structure is sound and south-facing. No planning issues in most cases and the closest possible route to on-site consumption.
Ground-mount
Better when the roof is unsuitable and you have surplus land. Needs planning permission above ~1 MW and a longer cable run to the point of use.
Structural surveys
Any commercial rooftop install starts with a structural report. Older buildings often need reinforcement before panels can be added.
Generation profile
Both technologies generate identical energy per kWp installed. The difference is install cost, planning and how quickly the power can reach your loads.
Ready to compare?
Get a tailored business solar quote in minutes.
Answer a few short questions and we'll match you with UK-regulated providers — no obligation, no phone spam.
Start your comparison
