The Anonymous Widower

Three Shetland ScotWind Projects Announced

The title of this post, is the same as that of this press release on Crown Estate Scotland.

These three paragraphs outline how the leases were allocated.

Three projects will be offered seabed agreements for offshore wind projects following Crown Estate Scotland’s ScotWind clearing process.

The announcement comes as an offshore wind supply chain summit is held in Aberdeen today (22 August) with Sir Ian Wood, chaired by Michael Matheson MSP, Cabinet Secretary for Energy, and including a keynote address by First Minister Nicola Sturgeon MSP. 

Clearing saw the ‘NE1’ area east of Shetland made available for ScotWind applicants who met the required standards but who did not secure their chosen location earlier in the leasing process.

I think it was good idea to offer these leases to those bidders that failed to get a lease, the first time around, despite meeting the standards.

  • Would it encourage bidders, if they knew that after the expense of setting up a bid, that if they failed, they could have another chance?
  • It must also save the Scottish Government time and money checking out bidders.
  • How many times have you interviewed several applicants for a job and then found jobs for some of those, that you didn’t choose for the original job?

Let’s hope the philosophy has generated some good extra contracts.

This map from Cross Estate Scot;and shows all the contracts.

Note the three new leases numbered 18, 19 and 20 to the East of Shetland, in the North-East corner of the map.

Their details are as follows.

  • 18 – Ocean Winds – 500 MW
  • 19 – Mainstream Renewable Power  – 1800 MW
  • 20 – ESB Asset Development – 500 MW

Note.

All are floating wind farms.

  1. Ocean Winds is a Spanish renewable energy company that is developing the Moray West and Moray East wind farms.
  2. Mainstream Renewable Power appear to be a well-financed and ambitious company, 75 % owned by Aker.
  3. ESB Energy appear to be an experienced energy company owned by the Irish state, who operate several wind farms and Carrington gas-fired power station in the UK.

2.8 GW would appear to be a generous second helping.

Ocean Winds and Mainstream Renewable Power

This web page on the Ocean Winds web site, is entitled Ocean Winds Designated Preferred Bidder For Seabed Leases For 2.3 GW Of Floating Projects East Of Shetland, Scotland, contains several snippets of useful information.

  • Crown Estate Scotland announced the result of ScotWind Leasing round clearing process, awarding Ocean Winds with two seabed leases for floating offshore wind projects: a 1.8 GW capacity site with partner Mainstream Renewable Power, and another 500 MW capacity site, east of the Shetland Islands.
  • Ocean Winds’ international portfolio of projects now reaches 14.5 GW of gross capacity, including 6.1 GW in Scotland.
  • Floating wind turbines for the two adjacent sites are confirmed, because of the water depth.
  • The partners are committed to developing floating offshore wind on an industrial scale in Scotland, generating local jobs and opportunities in Scotland and the Shetland Islands.
  • From the picture on the web page, it looks like WindFloat technology will be used.
  • Ocean Winds developed the WindFloat Atlantic project.

Ocean Winds appear to want to go places.

The Shetland HVDC Connection

The Shetland HVDC Connection will connect Shetland to Scotland.

  • It will be 160 miles long.
  • It will have a capacity of 600 MW.
  • It is estimated that it will cost more than £600 million.
  • It will allow the 66MW Lerwick power station to close.
  • It will be completed in 2024.

I have a feeling that all these numbers don’t add up to a sensible answer.

Consider.

  • The three offshore wind farms can generate up to 2800 MW of green electricity.
  • With a capacity factor of 50 %, an average of 1400 MW of electricity will be generated.
  • The Viking onshore wind farm on Shetland could generate up to 450 MW.
  • More wind farms are likely in and around Shetland.
  • Lerwick power station can probably power most of the Shetland’s needs.
  • Lerwick power station is likely to be closed soon.
  • Sullum Voe Terminal has its own 100 MW gas-turbine power station.
  • Load is balanced on Shetland by 3MWh of advanced lead-acid batteries.
  • Lerwick has a district heating scheme.

If we assume that Shetland’s energy needs are of the order of a few hundred MW, it looks like at times the wind farms will be generating more electricity, than Shetland and the Shetland HVDC Connection can handle.

Various plans have suggested building electrolysers on Shetland to create hydrogen.

Conversion of excess electricity to hydrogen, would have the following advantages.

  • The hydrogen could be used for local heavy transport and to replace diesel.
  • Hydrogen could be used to fuel a gas turbine back-up power station, when needed.
  • Hydrogen could be used for rocket fuel, if use of Shetland as a Spaceport for launching satellites takes off.

Any excess hydrogen could be exported to the rest of the UK or Europe.

 

August 24, 2022 Posted by | Energy, Hydrogen | , , , , , , , , , | 6 Comments

Stockport Hydro

I hadn’t heard of Stockport Hydro, until there was a report about it on BBC Radio 5.

This is the introductory paragraph.

Stockport Hydro, a renewable energy scheme at Otterspool Weir on the river Goyt near Marple, Stockport, is Greater Manchester’s first community-owned hydro-electric project. Our two Archimedes screws, Thunder and Lightning, have been operational since October 2012, generating renewable electricity which is fed into the National Grid. We are accredited to earn the Government’s Feed-in-Tariff and the Environment Agency has approved our operation to ensure no damage to the river’s eco-system and wildlife.

This Google Map shows the location of the Stockport Hydro.

Note.

  1. The weir crosses the River Goyt
  2. The Stockport Hydro is at the West end of the weir.
  3. The green Archimedean screws can be seen on the South side of the building.

How many other weirs could host a small hydroelectric power station like this?

August 24, 2022 Posted by | Energy | , , | 4 Comments

The Creation Of The Coire Glas Monster

Loch Ness is probably most famous for the mythical monster, but it is about to be joined by a man-made monster of a different kind.

To the South-West of Loch Ness lies Loch Lochy.

This Google Map shows the South-Western part of the Great Glen, which runs diagonally across the Highlands from Fort William in the South-West to Inverness in the North-East.

Note.

  1. Fort Augustus in the North-East corner of the map, is at the South-West end of Loch Ness.
  2. In the South-West corner of the map, Loch Lochy can be seen.
  3. To the North-West of Loch Lochy, there are mountains.

This second Google Map shows Loch Lochy and the mountains.

SSE plan to create a pumped storage hydroelectric power station called Coire Glas.

  • Loch Lochy will be the lower reservoir.
  • The upper reservoir will be in the mountains to the North-West of the loch.
  • Energy will be stored by pumping water from the lower to the higher reservoir.
  • The power station will be able to provide 1.5 GW of electricity.
  • The upper reservoir will be able to store enough water to generate 30 GWh of electricity.

If that isn’t a monster of a power station, I don’t know what is! It has more than three times the storage capacity of both Dinorwig or Cruachan.

This article on Utility Week, which is entitled Inside £1bn Pumped Hydro Plans To ‘More Than Double’ Britain’s Electricity Storage, gives more details.

This is the sort of heroic engineering, that will defeat Vlad the Mad and his bloodstained gas.

 

August 24, 2022 Posted by | Energy, Energy Storage | , , , , , , , | 2 Comments