Re:Germany boosts renewables with “biggest energy policy ref...
by yayachiken on Thursday April 07, 2022 @03:08PM
(#30949019)
You can go even further. All "natural" processes are completely excluded from primary energy use.
If you include the energy used by agriculture (as in: photosynthesis) you will get a number that human energy use is something like 99% powered by the sun.
If you include ambient heat, non-solar energy sources become a rounding error.
This may seem obvious and silly, but especially in residential heating using the ambient heat with heat-pumps, solar collectors, large sun-facing triple insulated window fronts, will be key for energy usage reduction.
I would recommend the books by Professor Volker Quaschning (well-known climate scientist in Germany), he goes into lots of stuff like this in detail.
If you include the energy used by agriculture (as in: photosynthesis) you will get a number that human energy use is something like 99% powered by the sun.
If you include ambient heat, non-solar energy sources become a rounding error. This may seem obvious and silly, but especially in residential heating using the ambient heat with heat-pumps, solar collectors, large sun-facing triple insulated window fronts, will be key for energy usage reduction.
I would recommend the books by Professor Volker Quaschning (well-known climate scientist in Germany), he goes into lots of stuff like this in detail.