Tag Archives: coire glas

The Glenmuckloch Pumped Storage Hydro Scheme

Scotland is to get a new pumped storage hydro scheme, not in the Highlands but in the Scottish Borders. With a capacity of 400 MW and an estimated 1.7 GWh of storage this plant can make a meaningful 4 hour contribution to peak generation every day. But wooly arguments made about smoothing intermittent renewables makes it unclear if this commendable strategy is the intended use. Continue reading

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Is large-scale energy storage dead?

Many countries have committed to filling large percentages of their future electricity demand with intermittent renewable energy, and to do so they will need long-term energy storage in the terawatt-hours range. But the modules they are now installing store only megawatt-hours of energy. Why are they doing this? This post concludes that they are either conveniently ignoring the long-term energy storage problem or are unaware of its magnitude and the near-impossibility of solving it. Continue reading

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The Cost of Dispatchable Wind Power

In a recent conversation with a politician I was told we needed a lot more pumped storage hydro to store surplus wind power from when the wind blows for use when it is calm. Continue reading

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Flat-land Large-scale Electricity Storage (FLES)

A few weeks ago I attended a small, commercial, energy storage conference in Brussels organised by Energywise where I heard a most intriguing talk on building a large pumped storage hydro scheme in Holland. The talk was delivered by Dr Jan Huynen, the president of SOGECOM who struck me as being a very serious energy engineer. The project is nearing fruition, with a €1.8 billion price tag and 1.4 GW of supply for 6 hours yielding 8 GWh per daily cycle, this is no toy. Holland is of course totally flat! Is this just another Green pipe dream? Continue reading

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The Loch Ness Monster of Energy Storage

The UK had splendid weather in April. With high pressure over the North Sea we had 8 days of splendid weather at the beginning of the month (2nd to 9th of April) and 10 days of splendid sunshine during the second half (15th to 24th April) (Figure 1). This of course left our massive fleet of wind power stations idling. 12 GW of installed capacity produced less than 1 GW for much of that time and less than 0.2GW for some of the time. This affords the opportunity to put some numbers on the energy storage requirements to survive lulls such as these. Continue reading

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Scotland Gagging on Wind Power

I last looked into the details and consequences of Scottish energy policy in the pre-referendum post Scotch on the ROCs. The expansion of Scottish renewables is progressing at breakneck speed and the purpose of this post is to update on … Continue reading

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The Cost of Energy Storage

I taught my students that intermittent renewable electricity (wind and solar) was third class compared with dispatchable fossil fuels (first class) and baseload nuclear power (second class). But that renewables may be turned into a first class electricity source with the development of affordable grid-scale storage. Continue reading

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The Coire Glas pumped storage scheme – a massive but puny beast

Coire Glas, therefore, is simply window dressing in efforts to “Green” UK power supply with pylons, turbines and dams. Continue reading

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