One of the lines of action for reducing CO2 emissions is the decrease in the consumption of fossil fuels and the increase in the production of energy from renewable sources.
In this context, the recovery of residual heats, which are currently not being used, and the use of various types of renewable energies, which can be captured at medium temperature, such as solar thermal energy or medium enthalpy geothermal energy, would be important advantages both environmental and energy consumption reductions. In the same way, it would allow the increase of the use of renewable energies.