Wednesday, August 15, 2012
Geothermal Gains Favor in Japan After Fukushimaa
What should be obvious is that the geothermal potential for Japan is superb and that a national effort to displace nuclear power is both feasible and timely. The engineering is mature and readily available.
Everyone else has to concern themselves with distance from market impacting the economics which is not a concern here. Even building a super conducting line as a power corridor is an obvious and best use of resources in Japan. Doing all that and Japan will own a safe grid energy system that will be totally paid for in a generation or two that will always be competitive for Japan's needs.
The onset of fusion energy is the only present deterrent facing this value proposition and I suspect that the geothermal solution will standup well at least against the heat engine solutions. Either case you are paying for a heat source.
Japan Fukushima disaster leads to geothermal energy
by Madison E. Rowe August 11, 2012
It has been nearly 18 months since the 9.0-magnitiude quake that ravaged the Japanese coast. The disaster was responsible for the nuclear tragedy that unfolded at Japan’s Fukushima Daiichi power plant. But despite that tragedy, locals have been finding opportunities for environmental betterment.
Before last year’s disaster, the spa resort of Tsuchiyu Onsen drew tens of thousands of tourists. They were all in search of the healing qualities of its piping hot spring water. Now, that same natural resource is about to turn this resort into a trailblazer for the country’s push towards renewable energy.
Tsuchiyu is 15 kms from Fukushima. By spring 2014, it will be generating 250 kilowatts of electricity. That’s about a quarter of the city’s total needs. This will all take place at a geothermal plant hidden away in the surrounding mountains.
The plant will be the first to be built inside a national park. It’s a controversial move that only became possible after the environment ministry recently relaxed regulations on developing protected areas.
If all goes to plan, the project could not only help the town become self-sufficient in power generation, but revive its role as a tourist destination. Visitor numbers dropped because of lingering fears over radiation. In the past, hot-spring operators have been among the fiercest opponents of geothermal energy. That’s because it’s an obvious energy source given Japan’s huge reserves of volcanic water. Many operators fear the geothermal plants would affect the flow and quality of the water, which is pumped up from the depths and then cooled for the benefit of Japan’s enthusiastic bathers.
But in Tsuchiyu it’s a different story. Spa owners are now some of the keenest backers of geothermal energy. Kazukya Ikeda is general manager of the Tsuchiyu Onsen Tourist Association. Ikeda says, “The plant won’t affect the water quality or the temperature. We have surveyed opinion in the town, and no one has raised any objections.”
The move also makes economic sense. Under a new feed-in tariff system introduced last month, utilities are required to pay premium prices for renewable energy: 42 yen (about 53 cents) per kilowatt for geothermal power.
Resistance to geothermal power has been massive in Japan. Some observers say that’s because the nation has always relied heavily on Fukushima’s nuclear power. But since the 2011 nuclear disaster, the Japanese mindset is beginning to shift. Japan is now able to tap into a resource that energy experts believe has huge potential. According to the trade and industry ministry, its 18 geothermal plants account for 0.2% of electricity output. And no new plants have been built for a decade.
Scientists believe the sector’s share could rise enormously. That’s thanks to the feed-in tariff, new subsidies to fund test-drilling, and official recognition that nuclear’s heyday has passed.
In the long term, Ikeda believes Tsuchiyu will become a model for other small towns struggling to find clean and stable sources of energy.