Some companies already offer promising 'low-tech' energy solutions that were not so attractive when energy was cheap and abundant:

#Heliostorage uses #BoreholeThermalEnergyStorage to make #SolarHeat available in winter. Similar to #DrakeLanding in πŸ‡¨πŸ‡¦
https://heliostorage.com/how-it-works
https://www.dlsc.ca/

#SavoSolar has built many large #PitThermalEnergyStorage systems in Central Europe, but not yet Finland.
https://savosolar.com/

We should quickly ramp up such technologies.

How It Works

How it Works Seasonal Thermal Energy Storage is the most energy efficient solution for the heating of buildings. It can be deployed from small to large scale and allows the heat production to be located close to where it is needed.  How Does Seasonal Thermal Energy Storage Work? The cycle begins in spring when the […]

Heliostorage