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Power-to-Gas (PtG) is an innovative energy concept which will help to incorporate flexibility into future energy systems, increasingly characterised by the use of fluctuating renewable electricity. One PtG option, dubbed Power-to Hydrogen (PtH2) is to produce hydrogen from water electrolysis applying cheap renewable electricity in times of surplus and providing it for re-electrification in times o ...

The municipal wastewater in Europe contains a potential chemical energy of 87,500 GWh per year in its organic fraction, which is equivalent to the output of 12 large power stations. Due to the currently applied technologies and related energy loss at each process step, wastewater treatment in Europe today consumes instead the equivalent of more than 2 power stations. Many operators are thus target ...