https://www.conference-board.org/pdfdownload.cfm?masterProductID=43455
https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef19045en.pdf
https://iea.blob.core.windows.net/assets/5ae32253-7409-4f9a-a91d-1493ffb9777a/Renewables2021-Analysisandforecastto2026.pdf
https://www.smmt.co.uk/wp-content/uploads/sites/2/1207-SMMT-position-on-UK-Brexit-negotiations.pdf