In 2018, an energy audit of County Hall identified lighting retrofits as having a significant potential for energy savings in the building, and this work began in 2019.

Phase 1 of the programme has been completed with a calculated annual saving of 37 tonnes of CO2 emissions, as has phase 2, saving an additional 13.3 tonnes of CO2.

Phase 3 of the programme is currently underway.

To date an average reduction in consumption of 68% has been achieved and 53 tonnes of CO2 emissions have been avoided.