Find out if solar panels pay off
Independent solar assessment based on your actual electricity consumption, roof data and current electricity prices.
- We don't sell solar panels
- We don't ask for your contact details
- 3 Roof design
- 4
From address and consumption to decision
How the tool works
Selected address
Ågeruphøj 51, 4000 Roskilde
Enter your address
We automatically find your building and prepare hourly weather data and roof data from Denmark's national elevation model.
Eloverblik
Enter manually
Quick estimate
Annual consumption
Import your consumption
Import your actual hourly consumption directly from Eloverblik, or enter it manually.
Mark roof surfaces
Draw the roof surfaces where you want solar panels. Tilt, orientation and shading are calculated automatically.
Solar system
8.4 kWp
Payback period
8.6 yrs
Annual CO2 savings
637 kg/yr
Get your results
Optimized system, payback time, savings and CO₂ reduction based on your consumption.
Example result
A clear decision basis in minutes
Optimized system, payback time, savings and CO₂ reduction based on your consumption.
- 100% independent
- Hourly data resolution
- Shadow model
Recommended solution
Based on your information, we have calculated the solar solution that gives you the greatest economic value. You can click on all the headings if you want more information.
Solar system
8.4 kWp
Consumption
Your annual electricity consumption
Production
Your annual electricity production
Battery size
See other battery sizes here
Payback period
Return on investment
Annual savings
Annual savings from 2028
Total price
Total investment
Self-sufficiency rate
The percentage of your annual consumption that is covered by solar panels
Annual CO2 savings
CO₂ saved per year
Our products
SolarSim develops digital tools that make it easier for citizens, municipalities and businesses to make informed green choices about solar energy.
Municipal screenings
SolarSim sizes the optimal solar PV system from your hourly consumption profile, making it easier to screen the solar potential of municipal buildings on an unbiased, data-driven basis.
Read more →Solar screenings
We also screen building portfolios for businesses, housing associations and property companies. Same unbiased, data-driven basis: an individual report for every address and a combined overview of the whole portfolio.
Read more →Solar tool
Our digital tool helps citizens and businesses assess whether solar panels are a good solution for their building. It is unbiased, easy to use and gives a realistic picture of economics, production and CO₂ savings in just a few minutes.
Read more →Solar software
We develop tailored electrical and financial performance models for your solar-powered products and integrate them into mobile or web application tools to support sizing, deployment and performance monitoring.
Read more →DTU spin-off
Who is SolarSim?
SolarSim is a spin-off company from DTU, the Technical University of Denmark, founded to make the green transition easier for everyone to take part in. Our digital tools build on the latest research, precise data and user-friendly technology, offering independent solar assessment that helps citizens, municipalities and businesses make informed green choices.
100% independent
We don't sell solar panels, don't broker offers, and receive no commission from suppliers.
Hourly data resolution
Calculations build on your actual hourly consumption, hourly weather data and current electricity prices.
Shadow model
Shading, roof surfaces, tilt and orientation are calculated automatically from precise elevation data.
Direct contact
SolarSim ApS
- Ågeruphøj 51, 4000 Roskilde
- CVR 44137593
- [email protected]
- +45 42 59 05 59
Are solar panels a good investment for you?
Search addresses in your municipality… Try our tool hereWe don't sell solar panels