Verified data for this postcode

Solar Potential in
London

Data-driven analysis for SE21. Based on local roof structure and solar irradiance data.

Score
9
/ 10

Excellent Solar Potential

London is in the top tier for solar viability. With a high density of suitable roofs and favorable conditions, an installation here typically offers a rapid payback period.

Score comparison vs National Average

Estimated Financial Return

Annual Savings
£1269
Tax-free income
System Size
7kW
~18 Panels
20-Year Value
£25,380
Inflation adj.

Solar Insights for SE21

Are roofs in SE21 suitable?

Our data shows that 83% of properties in this area have pitched roofs, which are typically ideal for solar arrays.

What is the environmental impact?

Installing a 7kW system in SE21 would save approximately 1.5 tonnes of CO2 annually.

Why Consider Solar in London?

For those living in London (SE21), the shift to self-generated electricity is not just an environmental choice, but a savvy financial one. With a score of 9/10, London is in the top tier for solar ROI. Residents in SE21 can expect rapid payback periods, especially when displacing expensive grid electricity.

Local Market Trends

Our analysis of the SE21 registry indicates a high prevalence of pitched roofs (83%), which simplifies installation and reduces mounting costs. This architectural profile makes London one of the more straightforward areas for installers.

Installation Checklist

  • Check your EPC rating (Target C or above)
  • Verify if you are in a Conservation Area (Common in London)
  • Request MCS certificates from local installers

Frequently Asked Questions for SE21

Do I need planning permission in London?

Generally, solar panel installations in London are considered 'Permitted Development' and do not require planning permission, provided they do not protrude more than 200mm from the roof slope. Exceptions apply if you live in a listed building.

How much can I save in SE21?

Based on the average floor area of 118m² in SE21, a standard system could save significantly on electricity bills. See the financial calculator above for a specific estimate.

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Area Statistics

Sample Size4660 homes
Roof Suitability83% Pitched
Avg Floor Area118