There is about 2,860 TWh/y of waste heat accessible in Europe, much of which could be reused.

That’s almost Europe's total energy demand for heat in residential and service sector buildings.

New report:

https://www.whyenergyefficiency.com/solutions/allsolutions/the-worlds-largest-untapped-energy-source-excess-heat?utm_source=pressrelease&utm_medium=generic&utm_campaign=cf_whitepaperexcessheat

@janrosenow build greenhouses next to factories and power stations to use waste heat and some CO2
@janrosenow Just spent another fine half hour in a meeting discussion our formidable ability to pour heat through our chimneys, hoods and drains… Gah.