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Distribution / NGED / Site

Elan valley nffo hydro electric generating facility

Dwr cymru welsh water at Rassau Gsp

NGED Embedded Capacity Register, August 2026 edition

Site, company and substation names are shown as they appear in the registers, including capitalisation.

Date connected
10 Mar 1997
Status
Connected
Customer
Dwr cymru welsh water
Site name
Elan valley nffo hydro electric generating facility
Address
Import Mpan, Elen Electric Generating Facility, Elan Valley, Rhayader, Powys, LD6 5HP
Grid reference
Easting 2925600, northing 2645500
Licence area
South Wales
Grid supply point
Rassau Gsp
Bulk supply point
Abergavenny
Primary substation
Rhayader
Connection voltage
11 kV
Technology group
Hydro and marine
Energy source 1
Water (flowing water or head of water), Hydro - Run of river: 4 MW registered
Registered capacity
4 MW
Maximum export capacity
2.587 MW
Maximum import capacity
0.048 MW
Flexible connection
Not published by NGED
In a connection queue
Not published by NGED
Date accepted
Not stated
Target energisation date
Not stated
Distribution reinforcement reference
Not published by NGED
Transmission reinforcement reference
Not published by NGED
Export MPAN
2199989612680
Import MPAN
2199989613708
Last updated
6 Aug 2026
Tracked since
August 2026 edition

Change history

Tracked since the August 2026 edition, the only one QueueWatch holds so far.

Changes to its status, capacity, technology or customer, newest first.

Changes will show from the next edition.

Also at Rassau Gsp

GSP view

37 other sites at this grid supply point in the August 2026 edition, 1 of them at Rhayader, the same primary substation. In all, the sites here total 575 MW: 202 MW connected, 373 MW accepted to connect.

See all 37

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