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United Kingdom2025-03-27en

Estimates of whole UK energy flow incorporating end use energy efficiency, 2023

Summary

The UK faces a challenge in accurately measuring and understanding energy losses at the end-use level, beyond traditional conversion losses, which is crucial for improving energy security and reducing emissions. This report addresses this by providing estimates of "useful" and "rejected" energy proportions across key sectors for 2023, leveraging existing consumption data and desk research. The analysis is completed and indicates that over half of the UK's consumed energy is rejected, highlighting significant inefficiencies, particularly in the transport sector.

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