Electrical Upgrade Prescribed for Japan’s Crimped Grid

An advisory body for Japan’s powerful Ministry of Economy, Trade and Industry (METI) has endorsed a tripling of the capacity to pass power between Japan’s otherwise estranged AC power grids: the 50-hertz AC grid that serves Tokyo and northeastern Japan, and the 60-hertz grid that serves western Japan. This frequency divide hascomplicated efforts to keep Japan powered since the March 2011 earthquake and tsunami — a task that keeps getting harder with the inexorable decline in nuclear power generation (at present just one of Japan’s 54 reactors is operating). Continue reading “Electrical Upgrade Prescribed for Japan’s Crimped Grid”

Chinese Bullet Trains’ Worrisome “Black-box” Controls

In August we brought you disquieting news that Hollysys Automation — the supplier of a control system implicated in China’s deadly bullet-train collision this summer — also provides controls for China’s nuclear reactors (which are multiplying just as fast as its high speed rail lines). The Hollysys story now looks darker after informed speculation reported in the Wall Street Journal that the company may not fully comprehend how the control systems work. Continue reading “Chinese Bullet Trains’ Worrisome “Black-box” Controls”

Nuclear Safety Implications in China’s Bullet Train Wreck?

The hand-wringing over China’s high-speed train wreck last month may have just begun if the government’s current explanation for the crash proves out. At present official fingers are pointing to a failure in the trains’ signaling system. The firm that installed them, it now appears, provides similar equipment for the nuclear reactors that China is building just as fast as it is adding rail lines. Continue reading “Nuclear Safety Implications in China’s Bullet Train Wreck?”

Fukushima Inspires Change in Germany & China

Amidst the stubbornly disappointing string of news emanating from Japan’s Fukushima Daiichi nuclear complex, there are signs that its melting nuclear fuel rods are inspiring some important and long-overdue developments in global power systems. And there’s good news for both nuclear supporters and critics.

Hopeful spinoff number one: Berlin is getting serious about upgrading the balkanized and inadequate transmission grid that represents a serious liability for Germany’s renewable energy ambitions.

Chancellor Angela Merkel’s decision last month to shut down Germany’s oldest nuclear reactors and temporarily scrub life extensions for the rest was widely seen as a sop to voters in the state of Baden-Württemberg. Well, Merkel’s Conservative Democrats lost the state to the Green Party, and she hasn’t looked back. Last week a document leaked from Germany’s Economy Ministry and reported by Bloomberg revealed plans to revamp the power grid–a precondition to replacing nuclear energy with solar, wind and other renewable power sources. Continue reading “Fukushima Inspires Change in Germany & China”

Glimmers of Hope in Japan or Wishful Thinking?

For those looking for hope amidst the nuclear threat afflicting post-Tsunami Japan, there are some glimmers of possibly positive developments to report from the Fukushima Daiichi nuclear power complex: