Direct energy consumption by operating unit, e.g. by average number of employees etc., is sometimes called energy intensity.

The Reykjavík Energy's (RE) own use of electricity is primarily due to the production of hot water, pumping of wastewater, hot and cold water, and property management. RE's own use of electricity has in general increased since 2016, as well as for hot water usage, see appendix.

The use of fossil fuels per employee at RE has increased compared to the year 2016, especially between the years 2022 and 2023. The use of methane has increased compared to its use in 2016, but it decreased between the years 2022 and 2023, see appendix.