Wednesday 9 January 2008

Ten myths about nuclear power

The UK government is expected to announce tomorrow that it will give the green light to the building of new nuclear power stations in the UK - the first since the Sizewell ‘B’ station was completed in 1995. These are urgently needed to make up the shortfall in power supply as older nuclear stations are closed over the next few years.

Yet the decision is bound to be controversial - not helped by widespread misinformation about nuclear power. Greens opposing nuclear power muddle every issue from terrorism to uranium supplies, in order to besmirch the only proven safe and cost-effective way to generate large amounts of electricity that won’t produce large amounts of greenhouse gas emissions. One would think that greens don’t want a world with abundant energy and a stable climate!

These are some of the myths we are likely to hear from greens debating nuclear power over the next few weeks:

2) Nuclear is not a low-carbon option

Anti-nuclear campaigners claim that nuclear power contains ‘hidden emissions’ of greenhouse gases (GHGs) from uranium mining and reactor construction. But so do wind turbines, built from huge amounts of concrete, steel and plastic.

The OECD analysed the total lifetime releases of GHG from energy technologies and concluded that, taking into account mining of building materials, construction and energy production, nuclear is still a ‘lower carbon’ option than wind, solar or hydroelectric generation. For example, during its whole life cycle, nuclear power releases three to six grams of carbon per kiloWatthour (GC kWh) of electricity produced, compared with three to 10 GC/kWh for wind turbines, 105 GC/kWh for natural gas and 228 GC/kWh for lignite (‘dirty’ coal) (6).

Greens, exemplified by the Sustainable Development Commission, place their trust in ‘carbon capture and storage’ (CCS) to reduce the GHG emissions from coal and gas plants (7). But carbon capture is, at present, a myth. There is no functioning power station with CCS in the world – not even a demonstration plant – and if it did work, it would still greatly reduce the energy efficiency of any power station where it is installed.

4) Reactors produce too much waste

Contrary to environmentalists’ claims, Britain is not overwhelmed with radioactive waste and has no radioactive waste ‘problem’.

By 2040 there will be a total of 2,000 cubic metres of the most radioactive high-level waste (9), which would fit in a 13 x 13 x 13 metre hole – about the size of the foundations for one small wind turbine. Much of this high-level waste is actually a leftover from Britain’s atomic weapons programme. All of the UK’s intermediate and high-level radioactive waste for the past 50 years and the next 30 years would fit in just one Royal Albert Hall, an entertainment venue in London that holds 6,000 people (and which seems, for some reason, to have become the standard unit of measurement in debates about any kind of waste in the UK) (10).

The largest volume of waste from the nuclear power programme is low-level waste – concrete from outbuildings, car parks, construction materials, soil from the surroundings and so on. By 2100, there will be 473,000 cubic metres of such waste from decommissioned plants – enough to fill five Albert Halls (11).

Production of all the electricity consumed in a four-bedroom house for 70 years leaves about one teacup of high-level waste (12), and new nuclear build will not make any significant contribution to existing radioactive waste levels for 20-40 years.



Rob Johnston
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