Cardiff Energy Recovery Facility (ERF)

Cardiff Energy Recovery Facility (ERF) is the largest ERF in Wales treating waste from the local authority and local business contracts. The facility, which has been operational since 2014, handles around 350,000 tonnes of residual waste (non-recyclable) waste, per year. It diverts at least 95% of South Wales’ residual waste away from landfill and generates 250GWh of electricity for the National Grid. That is enough to power around 68,448 households.

About 172,000 tonnes of the waste treated at the facility is delivered by the five Councils that make up the Prosiect Gwyrdd (Project Green) partnership: Cardiff, Newport, Monmouthshire, Vale of Glamorgan and Caerphilly. As well as treating household waste on behalf of Prosiect Gwyrdd, the facility also receives non-recyclable waste from other contracts, helping local businesses to divert their waste away from landfill.

The plant has been awarded R1 status which officially certifies that the ERF is operating at, or in excess of, the energy efficiency threshold required to be officially classified as an Energy Recovery Facility, as opposed to a disposal facility. Trident Park ERF is operating around 35% above the energy efficiency threshold required to achieve this certification.

Engaging with the wider community about the need for energy recovery technology, working in partnership with the waste hierarchy to reduce, reuse and recycle waste is important. At Cardiff ERF, we have invested in an environmental education centre to encourage people to learn more about the process. For more information on school and group visits to the ERF please click here.

See our Trident Park Community Newsletter

Autumn 2021   Winter 2020



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250 GWh
Energy produced
350000 Tonnes
Materials processed
68448 Homes
Equivalent powered