For a while now we've been seeing desperate anti-nukes making the ridiculous charge that nuclear energy contributes to greenhouse gas emissions once you add in the emissions from construction, mining and processing uranium -- this despite the fact that plenty of studies from third parties have found just the opposite.
Today, U.K.-based engineer Tim Jervis decided to crunch the numbers himself when it comes to construction, and he isn't impressed with the anti-nuke claims:
Let's be harsh again and pick 3 tonnes of CO2 for a tonne of steel. So we have another 200,000 tonnes of CO2 from the steel, or 200 million kg of CO2 from the steel to make a 1 GW nuclear power station.As we've mentioned before, when it comes to many of the claim made by anti-nukes, it's a lot like dealing with the Wizard of Oz. Once you get too close, there really isn't any there there at all.
Sum the steel and concrete CO2 figures: 300 million kg of CO2. If we had been conservative, that would have been 100 million kg CO2.
Energy from a 1 GW nuclear power station
If the power station produces power for a conservative 40 years, and runs for a pathetic 60% of the time (thus we're allowing for maintenance periods), the plant will deliver 210,000 million kWh of electricity.
The ratio is nearly zero
The simple ratio is 300,000,000 kg CO2 / 210,000,000,000 kWh - nearly 0.001 kg CO2 / kWh. Irrelevant.