UK Commercial Solar Calculator
Calculate your potential savings, ROI, and environmental impact with solar panels for your business in the United Kingdom
Use our UK solar photovoltaic (PV) calculator below for free, to determine the ideal system size in kWp for your business needs and estimate how much you could save on your energy bills.
To get started, we’ll need some basic information about your business, area and energy consumption. Don’t worry if you don’t have exact measurements. We will use the information you give us along with our estimates, to provide you initial solar panel savings estimates and costs, and to assist you in the actual true and free quote gathering process.
These are estimates based on average UK data. For a precise and free quote tailored to your property, please contact our EXCEL Energy UK team.
Once you enter your details and preferences, we’ll calculate your potential solar savings and environmental impact *.
Solar Project Details
Free UK Commercial Solar Calculator *
Fill out the form to calculate your potential solar savings. Our free calculator uses current UK electricity prices and solar performance data specific to your region.
Why Commercial Solar in the UK?
- Reduce energy bills by up to 70%
- Protect against rising energy prices
- Enhance your sustainability credentials
- Potential tax benefits through capital allowances
* This calculator provides estimates only. Actual costs and savings may vary based on specific circumstances, roof conditions, and installation factors.
Last updated: July 2025. Average commercial electricity price used: £0.285. Export tariff rate used: £0.5 per kWh (typical commercial SEG rate).
Various Solar Installation Types Comparison
Understand the differences between Rooftop, Ground mount, and Hybrid solar installations for Commercial Properties in the UK.
Rooftop Solar Installation
Utilizes existing roof space, ideal for businesses with large roof areas. Lower installation costs but limited by roof size and condition.
- Lower installation cost, approx. (£800-£1,200/kW)
- No additional land required
- Limited by roof size and orientation
Ground Mount Solar Installation
Requires available land but offers optimal panel positioning. Higher capacity potential but needs planning permission in most cases.
- Optimal panel orientation (£1,000-£1,400/kW)
- Higher capacity potential
- Requires available land and planning permission
Combined
Combines rooftop and ground mount systems for maximum energy production. Higher initial investment but best long-term ROI.
- Maximizes energy production (£900-£1,300/kW)
- Balanced approach to space utilization
- Higher complexity in design and installation
