Is nuclear power generation the way for New Zealand?
Posted September 10, 2007on:
Over the weekend, Australian Prime Minister John Howard said that countries who supported reducing GHG emissions must support nuclear energy. Of course the one does not presuppose the other (non-sequitur), and New Zealand politicians came back saying that it was not for New Zealand. In reaction, I note a number of ‘straw-polls’ on websites such as Stuff and NZHerald, where more than half of self-selecting participants said that they wanted nuclear power in New Zealand.
I am not against nuclear power in New Zealand if a robust economic case can be supported for its use, relative to other generation sources. This case would, of course, have to internalise the probability of a nuclear disaster multiplied by the expected costs of such a disaster, and also the real difficulties of disposing of nuclear waste. On the other hand, the emissions of alternatives (such as coal thermal generation) would need to be internalised as a negative for them in comparison to nuclear.
I support analysis that works to such a framework as being a crude but generally good way to rank alternative generation sources, taking into account all of the many pros and cons of each. Unfortunately, most New Zealanders seem to think that because the only raw materials used in generating power from nuclear is a plant and a bit of Uranium, it must be cheap in comparison to a wind farm or photovoltaic (solar) generation, let alone coal or other thermal generation sources – which in New Zealand just is not true. This was best exemplified by a column by Michael Laws in yesterdays Sunday Star Times. Besides describing George W Bush as a very smart man, it suggested that nuclear was more cost effective than wind power and geothermal power (among others), and that an oil price of $2million a barrel was needed to justify the costs of marine energy (plain wrong) and that solar is not an opportunity for future generation (actually, solar is currently non-viable, but not anywhere near as what Mr Laws suggests. In 10-15 years it will probably be a goer).
Let us get some perspective here. With current nuclear technology, the cost of nuclear generation is around twice the current cost of generation in NZ. Wind is actually much more efficient than nuclear, does not emit, generate nuclear waste, or risk catastrophe. There is some visual impairment. But the cost of this is much less than that of storing nuclear waste, or the risks of nuclear disaster. Indeed, marine would at the very least appear to be roughly as economic as nuclear for NZ (and in terms of scale is much more economic), without counting the risk of catastrophe and the costs and risks of nuclear waste disposal.
I am not against nuclear power for NZ per se, but the debate needs to be grounded in economic facts. New generation nuclear technology, probably emerging in 10-15 years may be more suitable for New Zealand than current technology. We should keep an open mind when this comes, but also not just jump on it as an easy fix and a solution to all of our problems – there are a lot of things to think about and internalise when comparing different generation options, and this should be done with care. Knee jerk opinions such as Mr Laws’, based on nothing but perception, do not represent good economic analysis.