Commercial Solar Calculator

Commercial Solar ppa Calculator

Calculate and download your savings instantly using our commercial solar calculator and see what onsite solar could mean for your business.

Select where you want to place your solar project
Panel position
Swipe to see more
Enter your building dimensions below to start calculating
Total Building Size (M2)
Potential # Solar Panels
PV Array Size
(kWp)
PV Output
(kWh)
Carbon Saving
(Tonnes CO2/year)
Cost Saving
(£ / year)

Building 1

0
0
0
0
0
0
0
0
0
0
0
0
For every day you delay getting in touch you are losing around:
£0.00 / day
Speak to an expert
This field is for validation purposes and should be left unchanged.

Start a conversation with us today

Max. file size: 64 MB.

When you submit your details through our contact form, we collect and process your information to respond to your enquiry. If you provide your mobile number, you also consent to receiving relevant updates or responses via WhatsApp for Business. You can opt out at any time.

How our commercial solar calculator works

Our commercial solar PV calculator gives UK businesses an instant estimate of savings under a solar power purchase agreement.

Simply enter your business energy usage and site details, and the tool will estimate:

  • Potential annual electricity savings
  • Projected long-term cost reduction
  • Estimated carbon reduction
  • Indicative system size

This calculator is designed to give you a fast, realistic starting point. For a tailored proposal, we’ll assess your roof space, load profile and operational requirements in more detail.

Speak to us today

FAQs

What information do I need to use the commercial solar panel calculator?

You only need an approximate annual electricity consumption figure to generate a solar savings estimate. For a more accurate commercial solar PV model, we review half-hourly meter data, roof size, orientation and operational energy profile as part of a detailed feasibility assessment.

What does this commercial solar calculator estimate?

This tool provides a directional estimate of potential electricity savings from onsite solar generation under a fully funded power purchase agreement model. It compares your current grid spend with projected onsite generation costs to give a fast, practical business case before a detailed assessment.

What factors influence the level of savings?

Savings depend on:

  • Daytime energy demand
  • Available installation space
  • Location and solar yield
  • Grid connection capacity
  • Agreed contract structure

Sites with consistent daytime consumption typically see the strongest results.

Is a solar PPA cheaper than buying solar panels outright?

It depends on your priorities. Owning a system can provide higher long-term returns, but it requires capital investment and ongoing asset responsibility. 

A fully funded PPA model avoids upfront cost and operational risk while still delivering immediate savings and long-term price certainty. For many businesses, preserving capital and reducing exposure to energy volatility is the priority.