old high-rise building and german gebaeudeenergiegesetz (geg), meaning building energy law

gebacurren udeenergiegesetz german geg building energy law renewable highrise renovation power government heating system isolation refurbishment costs climate change environment act residential old real estate property heat finance gas investment oil conversion regulation house efficiency ecology economic saving aged duty environmental stream homeowner text germany day nobody architecture high-rise gebã¤udeenergiegesetz meaning systems must largly powered older buildings insulated selected focus gebaeuudeenergiegesetz gebaeudeenergiegesetz