PV Calculator play online

It is important to present the potential of renewable energy generation in a simple and clear way for everyone.

Get an idea of the potential of photovoltaic power generation at your site.

languages: english, german

What makes this app stand out from others

Typical meteorological year (TMY) as radiation data at your site

Hourly resolution allows an accurate view of production and battery storage throughout the day

Individual load profiles allow a design adapted to your consumer behavior

Roof area measurement and panel positioning allow realistic planning


PV Calculator Features

Calculate the amount of electricity fed into the grid and purchased
Calculate your annual savings and payback time
Site specific solar irradiance
Hourly resolution
Define your PV-Modules and power inverter
Automatic determination of optimal orientation
Define your energy demand and daily load profile
Sizing of your battery storage
Roof area measurement and panel positioning

This app is Ad-free.


Premium Version
- Historical radiation data from 2005-2021
- Create additional projects and use the import/ export function
- Consider Snowfall
- Consider shading
- Create your own individual load profile
- Create an unlimited number of PV arrays
- Export your results as Excel sheet