The latest eco-toff to enter Westminster, Dave Cameron, has said nuclear is a last resort.
Here's why:
"We need to think in an entirely new way about energy. The future of energy is
not top-down, it's not centralised - it's bottom-up and decentralised."
He wants a shift to micro-generation. First, let me say that it is entirely consistent for the leader of the Conservative party to be ideologically attached to the concept of micro-generation. The current situation has large power stations and centralised infrastructure under the control of the few, while Dave's vision is for electricity generation to be in the hands of the many, no doubt supported by a large competitive market of micro-generation suppliers, a situation far more compliant with the teachings of Milton Friedman. No longer will people just own their own homes, but they will also own the means of powering them.
Micro-generation is pure Thatcherism! So Dave's support for it is about the only consistently Tory thing he has done since becoming Conservative leader.
Nevertheless, and as much as the British public, particularly those in the North might be offended by what I am about to say, a tunnel visioned focus on the Thatcherite dream is not necessarily the best idea.
How well will it really work? Windmills on top of roofs in the middle of conurbations don't work as well as those in the open country, where the great wind farms are being developed, because wind speeds are far lower. There is also the problem about the structural integrity of the buildings supporting these windmills as they endure the vibration.
Combined heat and power systems involve shipping more natural gas through urban centres, which is a health and safety hazard, and it does it at significant losses since the compressibility of a gas makes it hard to pipe. It is better to burn the gas at a power station and transport the energy across high voltage power lines. The losses are less that way.
Then of course, there's PV. These are limited by the solar constant and the urban environment, complete with its pollution and birds, which will greatly degrade their effectiveness. If simply attached to the roof of a building, they cannot track for best angle of insolation and given relatively low sun angles at these high latitudes, the potential is limited.
Biomass is a recipe for mass respiratory failure since most bio-fuels do not burn nearly as cleanly as the alkanes extracted from crude oil. Air pollution would sky rocket.
That is not to say that these systems cannot contribute importantly to covering our electricity needs, but to depend on them solely without the benefit of the large generating stations, which have served us so well, is putting idealism before realism. You can't just sweep away the necessity of conventional power stations with the
wave of a magic slogan.
I'll give Dave credit for not going down the
all-or-nothing route the LibDems have, since he has said he is not ruling it out, but he is treading awfully close.
But to the most important thing of all. If micro-generation is Dave's dream, and centralised generation should be avoided where possible and assuming that is practical, why should nuclear specifically be the last resort. Why not coal, which produces vast amounts of air pollution and is the worst greenhouse gas emitter, not to mention the worst radiation emitter? And the solid waste... Why not gas, which also emits greenhouse gases, contributes to air pollution and is increasingly becoming a security liability?
Nuclear does not contribute to air pollution or global warming in any significant quantities. Its wastes are produced in small, manageable quantities. Above all, it is clearly the
safest form of large scale generation.
Singling out nuclear as the last resort, rather than other more polluting centralised power sources, seems somewhat discriminatory.