By Energy People. Compiled with AI assistance from linked sources.
Ampeak Energy has completed delivery of the batteries and key components for its 240MWh Afon Wysg 1 project at Uskmouth in Wales, the company announced on 11 November 2026.
The project has not yet entered commercial service. Ampeak is targeting first energisation from the grid later in November, followed by charge-and-discharge commissioning and full commercial operation in the first quarter of 2027.
Canadian Solar’s e-STORAGE supplied 55 batteries and will handle commissioning. Principal contractor Jones Bros installed the batteries, 36 inverters, 18 twin skids and the main grid transformer. Ampeak says the new on-site substation and high-voltage cabling are also complete.
The delivery milestone shifts the immediate work towards electrical testing and integrated system performance. Ampeak reports that space and foundations have already been prepared for a proposed expansion to 480MWh, but financial close for that additional capacity remains a future objective after the initial project becomes operational.
Update — 12 November 2026: Ampeak has asked bondholders to defer principal repayments by two years while it awaits revised grid-connection dates for its battery portfolio, which includes Mey in Caithness. The company describes the two-year period as a planning assumption, not a confirmed delay imposed by NESO.
The proposal requires approval from holders representing 75% by value of each debenture class, with voting results expected in December. Ampeak continues to target November energisation and first-quarter 2027 commercial operation for AW1; the repayment proposal does not announce a delay to that initial project.
Update source: Ampeak business and bond update, 12 November 2026.
Source: Ampeak Energy announcement, 11 November 2026.
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Image: illustrative technology file photograph of Hunterston Battery Storage Facility, North Ayrshire, Scotland, 5 May 2026. This is not Uskmouth or its equipment. Raibeart MacAoidh / Geograph via Wikimedia Commons, CC BY-SA 2.0. Resized and converted to WebP; same licence retained.
