Llyn Celyn

Llyn Celyn is an operational 4.5 MW hydro scheme in Gwynedd, generating since 1 January 1994. REPD does not record the planning grant date. Operator of record: Dwr Cymru Welsh Water.

4.5 MW

Capacity

as recorded in REPD

Operational

Status

since 1 January 1994

Small Hydro

Technology

Dwr Cymru Welsh Water

Gwynedd

Authority

Wales

Planning and build timeline

Application submitted	not recorded
Permission granted	not recorded
Operational	1 January 1994

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Other built sites within 15 km

Site	MW	Distance
Hafoty Ucha '2' and '3' Wind Turbine Wind Onshore · Operational	2.6	8.1 km
Bodtegir Wind Onshore · Operational	1.5	14.2 km

How big is Llyn Celyn?

Llyn Celyn has a recorded installed capacity of 4.5 MW. That figure is the capacity registered in REPD, which is the scheme as consented — the metered output of a site can differ.

Who operates Llyn Celyn?

REPD records the operator as Dwr Cymru Welsh Water. Ownership of built renewable assets changes hands regularly and REPD is published quarterly, so treat this as the operator of record rather than confirmation of who owns it today.

When was Llyn Celyn approved and built?

REPD does not record a submission date. REPD does not record a grant date. The site became operational on 1 January 1994.

Source: Renewable Energy Planning Database (REPD), Department for Energy Security and Net Zero, Open Government Licence v3.0, plus planning designation boundaries from planning.data.gov.uk (England only). REPD is published quarterly and covers schemes of roughly 150 kW and above. Capacity is the installed capacity on record, not metered generation. Operator is the operator of record at the last extract, not confirmation of present ownership. Reference 4909.

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