Solar Carports: What They'll Cost You, Save You, And Do For The Planet
Calculate Costs, Returns, And Carbon Savings
This interactive calculator provides a detailed analysis of solar carport investments, helping you understand the financial returns, environmental benefits, and technical specifications of installing solar panels over parking areas.
By adjusting the parameters below, you can model different scenarios based on your specific needs. The calculator accounts for system size, location, electricity costs, efficiency factors, and projected rate increases to provide accurate ROI projections over 10 to 30 years.
Use this tool to make informed decisions about solar carport investments, understand payback periods, and quantify the environmental benefits of transitioning to renewable energy.
134%
10-Year ROI
£329k
25-Year Savings
712t
CO₂ Saved
42
Homes Powered
System Configuration
?
1
50 bays
500
?
?
?
?
£0.05
£0.28/kWh
£0.90
?
?
75%
80%
90%
Financial Analysis
Savings
ROI
Cash Flow
Y-Axis View:
Payback Period
5.2 years
IRR (25 years)
18.5%
NPV @ 5%
£287k
System Specifications
Total Solar Panels
400
System Capacity
160 kW
Annual Production
163,520 kWh
Peak Output
142.4 kW
Area Required
800 m²
Installation Cost
£228,000
Project Timeline
2028
System payback achieved
2033
10-year ROI: 134%
2048
25-year total savings: £329k
Environmental Impact
Cars Off Road
8.2
Trees Planted
1,732
Petrol Saved
15,840 L
Performance Metrics
18.4%
Capacity Factor
£0.24
Cost per kWh
42
Homes Powered
25+
System Lifetime (years)
Daily Production
448 kWh
Monthly Production
13,627 kWh

