Helios Home
Free Solar Energy Calculator
TM
Get an accurate and personalised solar energy assessment for free, to help reduce your energy bills.
HeliosHome is the only free solar energy calculator that uses satellite maps of the UKs buildings to provide accurate generation estimates you can trust - saving you time and effort.
No need for multiple house visits
Simple form, no complex measurements needed
Request quotes from MCS registered installers
How Helios Home Works
TM
Enter your postcode and select your house number
Register your contact details
View your personalized solar assessment
Get quotes from MCS accredited installers
Get Your Assessment Now
Your Solar Assessment
Solar assessment based on 20 year historical information and provides view of solar generation capacity based on last 20 Years of hours on sun for that specific postcode. Number of panels is based on assessment of roof capacity and average size of panels. Assessment is based on data available.
Solar Capacity
Solar Area ( sq m)
0
Num of Panels
1
Energy Efficiency
Energy Rating
0
Potential Rating
1
Solar Generation & Savings
Revenue Year 1 (£)
1
Revenue Over 20 Yrs (£)
1
System Size (sq m)
1
Yield Year
1
Efficiency
1
Potential Efficiency
1
Saving Year 1 (£)
1
Savings Over 20 Yrs (£)
1
Carbon Savings
CO2 Saved Year 1
0
CO2 Saved Year 20
0
HeliosHome Solar calculation methodologies;
•Module power output -400 watts
•Assumed panel size 1.9 sq m
•Assummed panel efficiency 21%
•Co2 reduction rate - 0.207074 kg/CO2/KwH
•Assumed electricity tariff £0.2735 KwH (exc VAT)
•Yield = total solar panel area X efficiency X annual average solar radiation X performance ratio (0.80)