Here we also use methane from wastewaters for heating purposes. Things are automated, and on more industrial scale. And now, wastewater treatment plant does not need external natural gas, and can generate heat and some of its electricity needs by it.

This year new law came into power, that organic waste have been collected seperately. And will be used in bioreactors to generate methane. To reduce need for imported russian natural gas. Well, our natural gas gets now imported from USA now, but still. Will need to import less.