You may think that your electricity bill simply includes some administrative charges, standing charges and then your energy usage. It’s not quite as simple as that! The bill also contains an amount towards the environment, VAT, transmission and distribution fees and larger-scale energy supply fees.
Other metrics captured include:
[1] https://www.bbc.co.uk/news/business-33420734
[2] https://bulb.co.uk/business
[3] https://www.gov.uk/simpler-income-tax-simplified-expenses/working-from-home.