Nuclear Power in Sweden has half the external cost of wind power, and half the external cost of biomass.
The external cost of energy is as I once indicated, the cost you pay with your flesh: A quantified cost to health and the environment attributable to forms of energy. These are
not the costs you are directly billed.
This surprising result can be found in Table 6.7 on page 106 of the Swedish Implementation of the ExternE program.
http://externe.jrc.es/sw.pdfI will reproduce the costs per kilowatt-hour measured in mECu, Euromills per kilowatt-hour:
Nuclear 0.3 mECu/kw-hr.
Hydro: 2 mECu/kw-hr
Oil: 5.3 mECu/kw-hr
Natural Gas: 2.5 mECu/kw-hr
Coal: 4.7 mECu/kw-hr
Biomass: 0.7 mECu/kw-hr
Wind: 0.7 mECu/kw-hr
Here are some comments:
Please note that these figures apply
only in Sweden, and take into account factors that are intrinsically local. Several features are notable.
First, this report dates from the late 1990's. I believe that the performance of wind energy has improved since then, and that this is
not taken into account. In most countries wind is competitive in environmental costs with nuclear. I generally
assume wind to be superior to nuclear in having lower environmental costs
where wind is displacing peak load generation as is generally a reflection of its intermittent nature. If one is backing up wind power with either nuclear or hydro power, I expect wind to be an excellent form of energy, always worth installing.
The impact of hydro is surprisingly high for Sweden. In other countries it is lower and is competitive in environmental terms with nuclear power.
Sweden is unusual in having oil exceed coal in external cost. This is probably transport and import related. Usually coal is the dirtiest possible fuel in most countries.
The report is
very detailed in quantifying the costs, exhaustive in fact. One can find, for instance, how NO
x is quantified in incidence of congestive heart failure in this report.
As always, all renewable fuels are superior to all fossil fuels. Therefore this post should not be taken as a knock against renewable energy. Every single renewable energy activity in Sweden saves lives, just as every nuclear facility saves lives. Nuclear power saves
more lives, but it will take longer to expand Sweden's nuclear capabilities - and frankly more political rigmarole - than it will take to install renewable capacity.
In the 1980's Sweden's government declared an intention to phase out nuclear power. Since that time there has been a sea change in attitudes to nuclear power both in Sweden and the world in general. I don't think Sweden will be nuclear free in the lifetime of anyone reading this post. The last statement is environmental good news.