Calculate return on investment for residential solar panel installation. Average 6kW UK system: £6,000–9,000 installed; saves £700–1,000/year in electricity. Payback: 7–12 years.
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The Home Solar Panel ROI Calculator works by applying a well-defined formula to the values you enter. Understanding the formula behind the calculation helps you interpret the result and check that your inputs are correct. Below we break down the key components that drive the Solar Panel ROI.
The core formula used by this calculator is:
Result = f(inputs, settings)
Each variable in the formula has a specific meaning: