The Anonymous Widower

ILI Group To Develop 1.5GW Pumped Storage Hydro Project

The title of this post, is the same as that of this article on Solar Power Portal.

These are the first two paragraphs.

Clean energy developer ILI Group has begun the initial planning phase for a new pumped storage hydro project in Scotland.

The Balliemeanoch project at Loch Awe, Dalmally in Argyll and Bute will be able to supply 1.5GW of power for up to 30 hours. It is the third and largest of ILI’s pumped storage hydro projects, with the other two being Red John at Loch Ness and Corrievarkie at Loch Ericht.

It is a big scheme at 45 GWh.

The ILI Group has an extensive web site, that is worth a read.

  • This page describes pumped storage.
  • This long document from the company is part of their submission to the Government.

The company seems to be going in the right direction.

This Google Map shows the Loch Awe area.


  1. Loch Awe is in the North West corner of the map.
  2. Loch Fyne is the large loch in the South East corner of the map.
  3. Balliemeanoch is marked by the red arrow.

I am a bit puzzled as to the layout of the scheme.

But I have now noticed a Ballimeanoch close by Loch Awe.

This is a map of its location.

I suspect that is the correct location of the pumped storage scheme.

I shall be interested to see the layout of the full scheme.

February 10, 2022 - Posted by | Energy, Energy Storage | , , , ,


  1. […] I wrote ILI Group To Develop 1.5GW Pumped Storage Hydro Project, I noticed that they were also developing a scheme called Red John near […]

    Pingback by Red John Pumped Storage Hydro Project « The Anonymous Widower | February 10, 2022 | Reply

  2. Will Mark Wilson admit to supersizing ILI’s old plan for Balliemeanoch PSH or what?

    Comment by Scottish Scientist | February 10, 2022 | Reply

  3. […] I wrote ILI Group To Develop 1.5GW Pumped Storage Hydro Project, I noticed that they were also developing a scheme called Corrievarkie at Loch […]

    Pingback by Corrievarkie Pumped Storage Hydro Project « The Anonymous Widower | February 10, 2022 | Reply

  4. ILI are quite unusual in that they “aim to take potential sites through the development and planning process. The business’ primary objective is to develop the projects to a point at which they can be sold to a company that has the financial and engineering expertise to build and operate them.” They are not your standard utility company. They’ve raised debenture funds on Abundance for both hydro and battery storage, both of which mature at the end of the year. I’ll be interested to see if they continue in this direction.

    Comment by Peter Robins | February 11, 2022 | Reply

    • They probably do the difficult bits to find the sites and make them shovel-ready. Then a company with engineering and financial resources can take it through to the end. It’s a pattern you see in wind farms.

      It’s a bit like buying a house, that has good tenants in it, where you need an income.

      Comment by AnonW | February 11, 2022 | Reply

  5. Suppose there are 3 planned Pumped Storage Hydro (PSH) schemes of different energy storage capacities – for example, SSE Coire Glas @ 30GWh, ILI Balliemeanoch 45GWh* and Glasa Morie Glass 170GWh – and we want to scale the installed power regeneration turbines so that they can all operate with an equal duration of regeneration in a co-ordinated manner to offer the National Grid, OFGEM, BEIS or whatever other customer the opportunity to place an order for a desired total power capacity for a desired duration of regeneration.

    If the customer requirements for total energy storage capacity (equal to total power multiplied by duration) exceed the sum of the energy storage capacities of the 3 planned PSH schemes – in this example, 245GWh – then we may need to specify the requirements of a 4th PSH scheme’s energy storage and power regeneration capacity in order to plan to satisfy the customer’s order.

    “Scaling 3 or 4 Pumped Storage Hydro Schemes for equal duration regeneration”

    Comment by Scottish Scientist | February 11, 2022 | Reply

  6. […] Ballimeanoch – 1.5 GW/45 GWh […]

    Pingback by A Brief History Of Scottish Hydropower « The Anonymous Widower | February 14, 2022 | Reply

  7. […] Balliemeanoch – 45 GWh […]

    Pingback by Will Coire Glas Start A Pumped Storage Boom In Scotland? « The Anonymous Widower | June 3, 2022 | Reply

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