Lynas and Lucas on nuclear power

Environmnental writer Mark Lynas and Green Party leader(!) Caroline Lucas debated nuclear power on the today programme this morning. It brought what I thought was the most astute question I've heard for a while on Today:

[Is there something] almost dogmatic in the theological sense about where the Green movement stands on this question, in that people are perhaps looking at the facts through lenses tinted by the historic opposition of the green movement to nuclear power?

Lucas didn't entirely disagree, but argued her point nonetheless in the usual way:

•  "Nuclear would lock us into a centralised energy system...." which is largely cod. They are all good ideas that come under the "decentralised energy" agenda, but the agenda itself is simply a way of packaging all carbon-saving technologies except for nuclear for the purposes of promoting them. By all means do that if you have already decided that nuclear would be a mistake, but it doesn't work as an argument against nuclear.
•  "Nuclear is not necessary..." - perhaps not. Arguably wind is not necessary either, or coal or gas or even energy efficiency. What is necessary is the generation of enough low-carbon energy, and we cannot afford to let dogma get in the way of this.
  
•  "Nuclear delivers too little too late." - that all depends on how much of it we build and how quickly. As Lynas pointed out, Germany built more coal fired power stations after the Greens had their nuclear plant shut down. That is an undeniable harm to the climate.

On their own these arguments might sway some but seen together they are horribly weak. We don't oppose wind farms because they deliver very little as a percentage of our total energy needs. We don't dismantle the interconnector to France's nuclear electric riches on the grounds that that is too "centralised", nor should we. We maintain spare generating capacity so that no single plant is "necessary". Lucas' objections are paper thin when stood against the need for large amounts of low-carbon energy.

Now maybe nuclear is just too expensive. Perhaps filling a percent of a percent or two of the Sahara with CSP, and linking to it with HVDC would be a better investment. But my guess is that we should do both - that we are a long way from being in a position to turn down feasible low-carbon energy sources. It is madness to frame the debate as nuclear v renewables and efficiency, when we are still building coal-fired plant.

And in any case the unknown factor in the cost of nuclear is the underwriting of the decommissioning cost, which is some time away. This would represent off-books liability that puts PFI to shame. No other low-carbon energy source can defer its costs like this. I don't think that our descendents whose climate will have been saved will mind that much the decommissioning cost. It is not as if they would be better off suffering climate change.

So with that in mind, it seems that nuclear capacity is almost certainly probably worth building, and probably probably worth building in sufficient quantity to replace all our coal-fired plant. (Gas, on the other hand, complements wind well.) I realise that my party, the Lib Dems, is opposed. I guess this is due to a desire to do the right thing for the environment, but with too much deference to the environmental movement. But environmentalists should heed Lynas:

We are no longer living in the 1970s. Today, the world is more threatened even than it was during the Cold War. Only this time nuclear power – instead of being part of the problem – can be part of the solution.