Penn battery awards balance-of-plant contract
METLEN will deliver balance-of-plant and grid-connection works for Pulse’s 129 MW / 362 MWh Penn battery. End-2027 energisation is targeted, with commercial operation separately expected in early 2028.
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METLEN will deliver balance-of-plant and grid-connection works for Pulse’s 129 MW / 362 MWh Penn battery. End-2027 energisation is targeted, with commercial operation separately expected in early 2028.
The Secretary of State approved the 400 MW solar and 600 MW battery project east of Sleaford on 21 August 2026.
The consented Caithness battery is designed for 200 MW of power and 3,600 MWh of stored energy, providing 18 hours of storage.
More developments
Commercial operation was reported on 13 August 2026. The article distinguishes this project from the separately planned Coalburn 2 and Devilla batteries.
The contract enables design and early procurement for three reactors; it is not final investment approval for an operating plant.
Development consent was granted on 8 April 2026. The developer now describes the scheme as in its pre-construction phase.
SSE confirmed full operation on 20 March 2026 after construction began in August 2023.
Kinectrics joined the international project as fabrication partner in March 2026.

EDF confirmed the revised first-unit timetable; the second unit is expected to follow around 12 months later.
Zenobē announced commercial operation on 21 January 2026, less than two years after construction began.