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Conventional Hydro

Dolymynach

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Llanerchcawr, Claerwen Valley, Dolymynach Reservoir Dam Nr., Rhayader, Powys, Powys, LD6 5HF

Dolymynach is a 0.2 MW conventional hydro project in Wales. The applicant or operator on record is Dwr Cymru Welsh Water. Planning permission has been granted as of March 2019 and it is awaiting construction. The determining authority is Powys, reference 19/0112/FUL.…

Consented / Approved
Project stageConsented
  1. PlanningJan 2019 (completed)
  2. ConsentedMar 2019 (current stage)
  3. Construction (not yet reached)
  4. Operating (not yet reached)
  5. Closed (not yet reached)

Status in the official register: Planning Permission Granted.

Official register: July 2026

Recorded status: Planning Permission Granted. Source record updated 2019-03-29.

Registered planning capacity; not measured generation.

DESNZ source publication Β· Search the full register Β· Definitions and coverage

0.200 MW
Registered Capacity

πŸ“‹ Project Overview

Dolymynach is a 0.2 MW conventional hydro project in Wales. The applicant or operator on record is Dwr Cymru Welsh Water. Planning permission has been granted as of March 2019 and it is awaiting construction. The determining authority is Powys, reference 19/0112/FUL.

Site Schematic

UPPER RES. LOWER RES. PENSTOCK TAILRACE GEN. GRID HEAD: ?m Β· POWER: 0.200 MW Β· ? turbines

Schematic diagram β€” not to scale. Illustrative layout based on project specifications.

πŸ”§ Technical Specifications

Capacity (MW)0.200 MW

πŸ”Œ Grid Connection & Infrastructure

🏒 Development & Ownership

DeveloperDwr Cymru Welsh Water
Owner / operatorDwr Cymru Welsh Water
Year consented2019
LocationLlanerchcawr, Claerwen Valley, Dolymynach Reservoir Dam Nr., Rhayader, Powys, Powys, LD6 5HF
RegionWales
Coordinates52.2436905Β°N, 3.6031318Β°W

Additional published register fields

Registered technologySmall Hydro

πŸ“… Project Timeline

2019-01-22
2019-03-29