Earba Storage project, also referred to as the Earba PSH project.
United Kingdom · Energy
In-depth researchRelease 1
Project scope
Proposed scheme with 1,800 MW installed capacity and up to 40,000 MWh of energy storage. Proposed works include adapting the lochs as upper and lower reservoirs, connecting them with an approximately 3 km tunnel, and constructing a powerhouse on Loch Earba’s shore that extends underground, with turbines at the bottom of its shaft for generation and pumping.
Reported status and procurement
Reported development
Plan: Construction is expected to last approximately six years.
Procurement availability
Unknown / not established
Reported regulatory context
The source describes Earba as the largest PSH scheme ever consented in the UK, by installed capacity and energy stored; it gives no consent date or further approval details.
A source report alone does not establish current progress or an open buying window.
Project summary
Earba Storage is described as a proposed pumped-storage hydro project at Loch Earba near Newtonmore. The proposal specifies 1,800 MW of installed capacity and up to 40,000 MWh of storage, using Loch Leamhain and Loch Earba as reservoirs connected by an approximately 3 km tunnel. It also includes a powerhouse extending underground, with turbines for generation and pumping. The page gives an expected construction duration of approximately six years. It reports that the scheme is the largest PSH scheme ever consented in the UK by installed capacity and stored energy, while giving no consent date or further approval details.
Evidence limits and unknowns
The source snapshot was observed on 2026-10-17; no publication date is supplied (source metadata; project description: u0011–u0025). The supplied page does not state procurement or tender status, defined supplier packages, financing, or a dated construction milestone.
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Project metadata
Country
United Kingdom Based on reviewed release evidence
Region
Europe
Category
Energy Derived from released evidence
Physical assets
Pumped Hydro
Based on this release's supporting evidence. Unresolved fields remain unclassified; these labels do not establish current progress or a buying window.
Released facts and supporting evidence
Each fact retains its source, uncertainty and time context. If a publisher page moves or is unavailable, use the recorded quotation and observation date below.
Project name
Source reported
Earba Storage project, also referred to as the Earba PSH project.
Attributed to earbastorage.co.uk.
Source: earbastorage.co.uk · publication date not recorded · observed 2026-10-17
Sources and evidence · earbastorage.co.uk
Source published: Not recordedObserved: 2026-10-17
Proposed scheme with 1,800 MW installed capacity and up to 40,000 MWh of energy storage. Proposed works include adapting the lochs as upper and lower reservoirs, connecting them with an approximately 3 km tunnel, and constructing a powerhouse on Loch Earba’s shore that extends underground, with turbines at the bottom of its shaft for generation and pumping.
Attributed to earbastorage.co.uk.
Source: earbastorage.co.uk · publication date not recorded · observed 2026-10-17
Sources and evidence · earbastorage.co.uk
Source published: Not recordedObserved: 2026-10-17
The source describes Earba as the largest PSH scheme ever consented in the UK, by installed capacity and energy stored; it gives no consent date or further approval details.
Attributed to earbastorage.co.uk.
Source: earbastorage.co.uk · publication date not recorded · observed 2026-10-17
Sources and evidence · earbastorage.co.uk
Source published: Not recordedObserved: 2026-10-17
Prior and superseded states remain labelled. Dates below identify source publication when known, otherwise source observation. They are not assumed event dates; each fact retains its own time qualifications.
No material timeline events have been released.
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