Tag Archives: intermittent renewables

Swansea Bay Tidal Lagoon and Baseload Tidal Generation in the UK

Charles Hendry, former energy secretary, published his long awaited report on the Swansea Bay tidal lagoon power station last week coming down in favour of the project. Hendry’s report is comprehensive but has one key omission. It does not ask if tidal lagoons can provide renewable base-load power in the UK as is often claimed. I set out in a positive frame of mind to show that it could, but failed miserably in that attempt. Facts defeated me.

UK tidal lagoons will produce more intermittent electricity than any other form of renewable generation providing four spikes separated by four periods of zero production each day. It is often claimed that the predictability of tides is a virtue. This also means we can predict with certainty that this energy source will be a disaster for the public as well as the environment. Continue reading

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How much more electricity do we need to go to 100% electric vehicles?

As reported in Blowout week 146 the EU is drafting legislation to mandate the installation of electric vehicle charging stations in new homes while Germany and the Netherlands are considering legislation requiring that all cars and light vehicles sold after 2025 or 2030 must be 100% electric. None of this legislation has as yet been approved, but if it is how much extra electricity will be needed to power the millions of EVs involved, and how much will it cost? I’ve seen no numbers on this, so in this post I come up with some, starting with Germany, the Netherlands and the EU and adding a few more countries – and the world – as we go. Continue reading

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Going green – the Ofgem vision

“…. when there isn’t enough supply to match demand, we generate more and build more cables to carry it. As we decarbonise, simply building more power stations and cables to meet demand when the wind isn’t blowing, or the sun isn’t shining, is neither sustainable nor efficient.” Continue reading

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The UK’s Fifth Carbon Budget – Without the Green Crap

The Committee on Climate Change (CCC), under the chairmanship of Lord Deben, recently released its report entitled Power sector scenarios for the fifth carbon budget. The CCC report provides three scenarios under which a ~75% reduction in electricity sector emissions can be achieved by 2030 plus four other “alternative” scenarios that either exceed it or fall short. Continue reading

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