Nuclear's still out in Japan. Why can't they use solar energy?
Continuing the debate on the use of photovoltaics as an alternative to nuclear...
This began following the Japanese earthquake of Monday July 16, 2007 and resulted in them having to switch off the seven reactors of their largest nuclear plant in Kashiwazaki-Kariwa.
Tokyo, with its 38 million inhabitants, spread over 60 kilometers lost 10% of its electricity capacity at the hottest time of the year, a place where they're used to their air conditioning, according to Georges Baumgartner, the Radio Swiss Romande journalist who's based there.
Instead, they switched on power stations that pollute the atmosphere with large quantities of carbon dioxide.
Why doesn't someone step in with a PV solution and set up some solar panels instead? If Bavaria in Germany can manage to generate 1% of their electricity needs using photovoltaic panels, why can't Japan?
They still have a 35% dependency on nuclear power.
responsibility
| carbon dioxide
| cooling
| germany
| japan
| nuclear
| photovoltaic
| pv
| solar energy

6 Comments
Reports say there was a fire yesterday at the nuclear plant which, incidentally, still hasn't been re-started since the earthquake in July 2007.
There's not much news either about any move to do anything with the facilities although I note that:
On August 23, 2007, the Nuclear and Industrial Safety Agency (NISA) received "information from the Tokyo Electric Power Company on non-conformities found in the inspection and restoration after the Niigataken Chuetsu-oki Earthquake in 2007.
It appears that they should be now have cleared away what was left of the contaminated leaked water - of which 1.2 m3 went straight into the sea and the rest spilled over the refueling floor of the reactor building - and will shortly be commencing removing the oil. Of the 438 drums of solid waste, 41 were found with their lids off.
The AFP report said that the earthquake which had forced the closure of the world's largest nuclear plant in Japan was about 2.7 times stronger than the maximum considered in the plant's design guidelines.
The Tokyo Electric Power Co. (TEPCO), which operates the Kashiwazaki-Kariwa nuclear power plant, registered the July 16 quake at 993 gals (the unit measuring the speed of acceleration).
The government's guidelines for the design of nuclear power plants only envisioned quakes of up to 370 gals. Eight of the country's 17 plants were built based on that estimate.
Japanese nuclear authorities expect the plant to be offline for about a year for safety checks, although the UN International Atomic Energy Agency said last week the plant had no major safety problems.
If it were me living in that area, I don't think I'd react in such a nonchalant way. What about you?
Well it seems to me the facts speak for themselves - no-one appears to have died, no-one even appears to have been injured.
It's all very well saying that PV should replace the nuclear, but as Pippa says, we are at 1% of the national need in Germany, a country which has invested in PV. The quantity of PV plant needed to replace a nuclear power plant is such that planners would go beserk.
Still both PV and nuclear have one common advantage - other than the CO2 needed for their manufacture, at least during production neither produce any greenhouse gases.
Indeed We japanese or who had experienced large earthquakes know the teribble of earthquakes. In japan most nucler power plants situate near sea coast,because used thermal hot water in plants is dischaged to the sea. And usualy sea coast(especialy Japan Sea Coast, Nigata,Ishikawa etc Pref.) doesn't have stability in the earth's crust. In this time, Kashiwazaki Kariba Earthquake,land sunk about 1.5 m and had 1.5m difference in grade in the plant area,and also transformer had fired.The result of these,some of electric power co.(for exsample Chuhbu electric power co.) makes their nuclea power plant strengthen .One of them was strengthen to bear 1,000gals for a earthquake. Nucler power plants are needed to reduce CO2 emission.Well PV is incleasing year by year in japan,but it need to expand popurization policy,the main reasons are cost performance and also it is not always sun- shining days,we have four seasons(including rainy season).
in japan.
I'm so glad we're finally having a debate on wattwatt about this topic.
I'm not a dreamer and I have Scots origins which make me more than conscious of costs and efficiency(!) If it weren't for the fact that noone has yet found the solution for disposing of nuclear waste I'd encourage it. But they haven't and I don't think we should get rid of the bath water with the baby in it, i.e. we need to think of the impact of our behaviour today in terms of tomorrow's world. Just because there's no immediate danger and noone died (this time) doesn't mean that I can continue, or in this case my fellow citizens should be permitted to, generating a situation that we can't control in a durable manner.
Equally, I don't approve of the 1976 Seveso disaster, the 1984 Bhopal tragedy and I wouldn't endorse sloppy behaviour in any situation, especially when it endangers life.
But, to return to the subject, just because we're used to generating our energy in a particular way doesn't mean that we can't spend a little extra on setting up new methods, even if it does mean, in the first stages, having more people than previously running around with nuts & bolts, or whatever it takes to set it up.
To draw a parallel which is like comparing apples and oranges, if companies have found that it's worth their while spending more on being a little greener, it's because not only does it ease their conscience, but it also reaps benefits for them in terms of share prices and the stock market.
We can use wind as the source of power to get fuel cells to stock the hydrogen we extract from water. Yes, it might be a planner's nightmare.
On the other hand, how much does it cost to send in teams of experts to examine a nuclear plant from every angle to ensure its safety in every aspect? When there's an earthquake or any other type of threat to the plant, how much more does it cost to send in other experts to judge on the level of danger?
And while these highly qualified people are carrying out their dangerous jobs what happens to the others who used to work there? What's the social price that has to be paid? Meanwhile, the intermediary fallback solution is pumping out tons of CO2 into the atmosphere.
The fundamental problem with nuclear is that people are somewhat paranoid about it because of all those radioactive particles which they can't see or touch. At least with coal and oil, you have something you can get your hands on, even if it leaves them all black.
PV still has one basic problem - it takes more energy to create the plant then it will ever generate. That to me is a pretty basic problem too. It means you're going to empty the bath tub faster than you can fill it up.
People don't like windmills (at least not where they can be seen). And conservationists complain because birds fly into the blades.
Actually, there is risk associated with every single activity we undertake, whether it's crossing the road (very high risk), to flying in a plane (relatively low risk). Building nuclear power plants has risk associated with it and it's not zero, but it has probably been more accurately evaluated, because of public concern, than most other human activities.
My personal feeling is that we are going to have to accept massive construction of nuclear power plants over the next few decades. The demand for power is going to increase massively over the next few decades, particularly in developing countries, and the only technology capable of meeting that need, without compromising commitments to reducing greenhouse emissions is nuclear. It's all very well saying we ought to be greener, more efficient and so on, but in reality all that's going to do is slightly reduce the rate of increase in demand. It certainly won't reduce demand.
If that's going to be the case, the most constructive way forward is to ensure that the power plants that are built, are done so correctly, in accordance with the best international standards, and that solutions to the handling of long-term waste products are found. Investing there is likely to be far more productive than either burying heads in the sand or pleading for solutions which have no hope of satisfying demand. Or of course we can carry on burning fossil fuels, thereby continuing our dependency on supplies in politically difficult countries and continuing to produce greenhouse gases.
Could it be that PV does have a future after all?
An article in the New Scientist Environment talks of a "futuristic scheme to collect solar energy on satellites and beam it to Earth" saying that it "has gained a large supporter in the US military".
It sounds like a pretty 'huge' idea since we're talking of kilometre-sized panels and I do wonder how they plan to avoid hitting them while shooting around in space (see Antoine Rauser's pulse in French about pollution in the universe).
If that's a "comfortable" solution for spending more money on technology, I suppose it will profit someone. Eventually we tend to benefit in one way or another when more "down-to-earth" uses and applications are discovered for the original space-age developments...