The Anonymous Widower

A Resilient Net Zero Electricity System Achievable By 2035 But Increased Investment Required, Regen Report Finds

The title of this post, is the same as that of this article on Current News.

This is the first two paragraphs.

The technical solutions needed to operate a net zero electricity system by 2035 are available or attainable, Regen has found, though a step-change in the level of investment is still needed.

The trade body has produced a new report for National Grid ESO into a ‘day in the life’ of a fully decarbonized electricity system by 2035, which the ESO is aiming for.

The article gives a lot of figures about our electricity supply in 2035.

Consumption of electricity will be between 450 and 500TWh per year, with the following sources.

  • 55-65GW of offshore wind
  • 25-35GW onshore wind
  • 40-50GW of solar
  • 6-10GW of other renewables
  • 10-15GW of low carbon dispatch
  • 8-10GW of nuclear
  • 8-12GW of carbon capture and storage (CCS)
  • 15-25GW of fossil fuel backup.


  1. 450-500 TWh is 51-57 GW per hour averaged out over the year.
  2. They emphasise the importance of energy storage.
  3. No mention is made of the massive Coire Glas pumped hydro storage.
  4. No mention is made of hydrogen.
  5. As is normal, with reports like this the authors don’t keep their GW and GWh separate.
  6. They also don’t explain the hierarchy of MW, GW and TW, which is 1000 x steps up the scale.

The full report is at this page on the Internet.

March 17, 2022 - Posted by | Energy, Energy Storage | , ,


  1. you have a very good grasp of this issue, AW…. why is tidal energy not more prominent [I assume its included in the ‘other renewables’ if any] … i am thinking of that Swansea project that hasn’t materialsed…

    Comment by PJS | March 17, 2022 | Reply

    • Frederick Snow came up with a feasible scheme for tidal energy in the 1960s or 1970s. Harold Wilson didn’t believe it, but then he got the economy into such a mess with his policies of nationalisation, the dreadful Selective Employment Tax and the Prices and Incomes Board, that there was no money for sensible policies like tidal power. The CEGB did get the four pumped storage schemes through a bit earlier and later generally under Tory governments and I wonder if the Severn tidal power was killed because of the Labour Party’s love of coal.

      I believe that if we update Sir Fred’s scheme it could generate around 10 % of our electricity. As bonuses, it could have several GWh of energy storage, provide more crossings between England and Wales and perhaps more importantly control the legendary flooding of the Severn. I have talked to wildlife experts from Cambridge University, who dispute the idea that a Severn Barrage would harm the birds. They have told me that flying animals like birds and bats are great opportunists and to state the obvious will fly to a new and better habitat. As one put it, do you think birds would migrate tousands of miles, if it wasn’t to their advantage?

      We tend to think more about wildlife, than our energy security.

      Comment by AnonW | March 17, 2022 | Reply

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