How much energy can you get from your heliostat?

Here is a calculator. Please center the map on the building to brighten.

Azimuth of the target to lighten as seen from the heliostat location (compute it with the tool picture of the azimuth tool available on the map available on the map):
°

Elevation above (+) / below (-) horizon of the target to lighten as seen from the heliostat location (= vertical distance/horizontal distance*45) :
°

Outside temperature from which you start to heat your accomodation:
°C
Take into account the accomodation's thermal inertia (consider temperature of day-1 and day-2)

Mirror area:
m²

Transmissivity of your glazing to the solar light (g-value):
%

If you want to exclude a summer period during which your heater is usually switched off (leave empty otherwise):
Date from which you usually switch your heater on:

Date from which you usually switch your heater off:

This computation uses the typical meteorological year of the PVGIS. CO2 estimations for electricity comes from electricitymap.org. Glazing transmissivity. Others estimations. The R version of the code is available here.