ECO3 methodologies for calculating electricity and gas supply volumes

Publication date
11th October 2019
Closing date
8th November 2019
Policy areas

This consultation is seeking views on our proposed administrative changes to our methodologies for calculating electricity and gas supply volumes; for the purposes of the supplier obligation setting provisions under the ECO3 Order. We are consulting now in order to facilitate finalising the methodology in advance of setting the supplier obligations for ECO3 phase 3. To assist suppliers, we will be sharing our emerging administrative approach and providing draft guidance which will be made available to stakeholders.

This consultation will be open for four weeks from 11 October 2019 to 8 November 2019.

We want to hear from anyone interested in this consultation. Please send your response to

Due to a communication error by Ofgem, incorrect figures relating to the uptake of elective HH settlement were included in GHD’s original report to us. An updated copy of the report with these figures adjusted (v1) was republished on 23 October 2019 and replaces the previous version published on 11 October 2019 (v0). We apologise for any confusion caused.