
https://www.bruegel.org/2022/03/can-europe-manage-if-russian-oil-and-coal-are-cut-off/

https://www.imf.org/en/News/Articles/2024/03/27/germanys-real-challenges-are-aging-underinvestment-and-too-much-red-tape

https://www.bmwsb.bund.de/SharedDocs/gesetzgebungsverfahren/Webs/BMWSB/DE/Gebaeudeenergiegesetz-geg.html