Tokyo, Japan

Tokyo Electric Power Company, Incorporated , also known as Toden or TEPCO, is a Japanese electric utility servicing Japan's Kantō region, Yamanashi Prefecture, and the eastern portion of Shizuoka Prefecture. This area includes Tokyo. Its headquarters are located in Uchisaiwaicho, Chiyoda, Tokyo, and international branch offices exist in Washington, D.C., and London. It is a founding member of strategic consortiums related to energy innovation and research; such as JINED, INCJ and MAI.In 2007, TEPCO was forced to shut the Kashiwazaki-Kariwa Nuclear Power Plant after the Niigata-Chuetsu-Oki Earthquake. That year it posted its first loss in 28 years. Corporate losses continued until the plant reopened in 2009. Following the March 2011 Tōhoku earthquake and tsunami, its power plant at Fukushima Daiichi was the site of a continuing nuclear disaster, one of the world's most serious. TEPCO could face ¥2 trillion in special losses in the current business year to March 2012, and the Japanese government plans to put TEPCO under effective state control to guarantee compensation payments to the people affected by the accident. The Fukushima disaster displaced 50,000 households in the evacuation zone because of leaks of radioactive materials into the air, soil and sea.In July 2012 TEPCO received ¥1 trillion from the Japanese government. TEPCO's management subsequently made a proposal to its shareholders for the company to be part-nationalized. The total cost of the disaster was estimated at $100bn in May 2012. Wikipedia.


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News Article | September 7, 2016
Site: www.theguardian.com

Japan’s former prime minister Junichiro Koizumi has labelled the country’s current leader, Shinzo Abe, a “liar” for telling the international community that the situation at the wrecked Fukushima Daiichi nuclear power plant is under control. Koizumi, who became one of Japan’s most popular postwar leaders during his 2001-06 premiership, has used his retirement from frontline politics to become a leading campaigner against nuclear restarts in Japan in defiance of Abe, a fellow conservative Liberal Democratic party (LDP) politician who was once regarded as his natural successor. Abe told members of the International Olympic Committee (IOC) in Buenos Aires in September 2013 that the situation at Fukushima Daiichi nuclear power plant was “under control”, shortly before Tokyo was awarded the 2020 Games. IOC officials were concerned by reports about the huge build-up of contaminated water at the Fukushima site, more than two years after the disaster forced the evacuation of tens of thousands of residents. “When [Abe] said the situation was under control, he was lying,” Koizumi told reporters in Tokyo. “It is not under control,” he added, noting the problems the plant’s operator, Tokyo Electric Power (Tepco), has experienced with a costly subterranean ice wall that is supposed to prevent groundwater from flowing into the basements of the damaged reactors, where it becomes highly contaminated. “They keep saying they can do it, but they can’t,” Koizumi said. He went on to claim that Abe had been fooled by industry experts who claim that nuclear is the safest, cleanest and cheapest form of energy for resource-poor Japan. “He believes what he’s being told by nuclear experts,” Koizumi said. “I believed them, too, when I was prime minister. I think Abe understands the arguments on both sides of the debate, but he has chosen to believe the pro-nuclear lobby.” After the Fukushima crisis, Koizumi said he had “studied the process, reality and history of the introduction of nuclear power, and became ashamed of myself for believing such lies”. Abe has pushed for the restart of Japan’s nuclear reactors, while the government says it wants nuclear to account for a fifth of Japan’s total energy mix by 2030. Just three of the country’s dozens of nuclear reactors are in operation, and two will be taken offline later this year for maintenance. Koizumi, 74, has also thrown his support behind hundreds of US sailors and marines who claim they developed leukaemia and other serious health problems after being exposed to Fukushima radiation plumes while helping with relief operations – nicknamed Operation Tomodachi (friend) – following the 11 March 2011 earthquake and tsunami. In 2012 the service personnel launched a lawsuit accusing Tepco of failing to prevent the accident and of lying about the levels of radiation from the stricken reactors, putting US personnel at risk. Most of the 400 plaintiffs were aboard the USS Ronald Reagan, a nuclear-powered aircraft carrier that was anchored off Japan’s north-east coast while helicopters flew emergency supplies to survivors of the tsunami, which killed almost 19,000 people. Medical experts, however, said the sailors would have received only small, non-harmful doses of radiation; a US defence department report published in 2014 said no link had been established between the sailors’ health problems and their exposure to low doses of Fukushima radiation. Koizumi, who met several of the sick servicemen in San Diego in May, plans to raise $1m by the end of next March to help cover the sailors’ medical expenses. “I felt I had to do something to help those who worked so hard for Japan,” he said. “That won’t be enough money, but at least it will show that Japan is grateful for what they did for us.” Despite his opposition to Abe’s pro-nuclear policies, Koizumi was complimentary about his performance as prime minister during his second time in office in the past decade. “As far as nuclear power is concerned, we are totally at odds,” Koizumi said. “But I think he’s reflected on the mistakes he made during his first time as leader and is doing a much better job second time around.” In political longevity terms, Abe’s performance could hardly be worse. He resigned in September 2007 after less than a year in office, following a series of ministerial scandals, a debilitating bowel condition and a disastrous performance by the LDP in upper house elections.


News Article | May 1, 2017
Site: www.treehugger.com

Two weeks ago, Reuters reported that radioactive water at Fukushima had become an 'emergency', according to Japan's Nuclear Regulatory Authority (NRA) task force. Highly radioactive water seeping into the ocean from Japan's crippled Fukushima nuclear plant is creating an "emergency" that the operator is struggling to contain[.] This contaminated groundwater has breached an underground barrier, is rising toward the surface and is exceeding legal limits of radioactive discharge, Shinji Kinjo, head of a Nuclear Regulatory Authority (NRA) task force, told Reuters. Now the situation is even worse, as 300 tons of radioactive water has leaked into the ground: The operator of Japan’s tsunami-crippled nuclear power plant said Tuesday that about 300 tons (300,000 liters, 80,000 gallons) of highly radioactive water have leaked from one of the hundreds of storage tanks there — its worst leak yet from such a vessel. Tokyo Electric Power Co. said the contaminated water leaked from a steel storage tank at the wrecked Fukushima Dai-ichi plant. TEPCO hasn’t figured out how or where the water leaked, but suspects it did so through a seam on the tank or a valve connected to a gutter around the tank. Reuters reports that the situation is worse than ever: More on Fukushima disaster at the links on the left.


BANGKOK, April 27, 2017 /PRNewswire/ -- Asian Utility Week, a brand belonging to Clarion Events, takes place at Impact Arena, Exhibition & Convention Center, Bangkok, Thailand on 24-25 May 2017. Asian Utility Week is a large scale expo with conference designed specifically for Asian utilities who seek to transform their utility business model to include digital enablers. It is known as Asia's leader in Advanced Metering Infrastructure (AMI) and features other innovations designed specifically to improve the customer's experience of energy services. The Digital Utility and Customer focused themes are attracting interest from technology innovators from across the world -- both start-ups and established utility leaders. The speaker line-up features over 180 energy technology specialists including: Samuel Tan, Chief Digital Officer, SP Group, Singapore Datuk Seri Azman, CEO, Tenaga Nasional Berhad, Malaysia Dexter Lee, President and Chief Executive Officer, Meralco Energy, Philippines Waiboon Chanchio, CIO, Electricity Generating Authority of Thailand, Thailand Hiroshi Okamoto, Managing Executive Officer, Tokyo Electric Power Company, Japan Song Il-keun, VP, Leader of Energy New Business Lab, Korea Electric Power Research Institute, Korea Hirokazu Yamaguchi, EGM, Global Innovation & Investment, Tokyo Electric Power Company, Japan According to the Event Director, Roderic Mclauchlan: Many utilities see the digital revolution as a threat to their traditional business model, but massive opportunities await those able to transform themselves ahead of the curve. The digital disruptor model is now becoming common in the utility sector and those Asian countries with deregulated energy markets are seeing the rise of the online energy retailer. This is forcing the incumbents to revamp their own digital channel strategies to stay competitive. We also find that social media is having a major impact on customer service strategies as disgruntled customers can effectively vent their frustrations to a large audience. While smart meters are still fairly new to Asia, the business case is now well understood and with the flood of data coming from those meters and the IoT strategies across the enterprise, those utilities with digital models are now reaping the benefits of lower operating costs and improved responsiveness to market change. Asian Utility Week is now free for both energy service companies and vendors to this sector.


Patent
Tokyo Electric Power Company, Chubu Electric Power Co., Kansai Electric Power Co., Kabushiki Kaisha Kobe Seiko Sho, Danish Technological Institute DTI and Johnson Controls | Date: 2013-01-23

A refrigerator is capable of maintaining a lubricant supply to a compressor and is environment-friendly and simply configured. The refrigerator includes: a cooling-water line 14 having a cooling-water pump 18 to thereby send water for cooling a refrigerant inside of a condenser 6; a lubricating-water supply line 32 connecting the part downstream from the cooling-water pump 18 on the cooling-water line 14 and a compressor 4 and supplying water flowing through the cooling-water line 14 as a lubricant to the compressor 4; and a backup means 60 supplying water to the lubricating-water supply line 32 instead of supplying water from the cooling-water line 14 when the cooling-water pump 18 is not driven.


Patent
Tokyo Electric Power Company, Chubu Electric Power Co., Kansai Electric Power Co., Kabushiki Kaisha Kobe Seiko Sho, Danish Technological Institute DTI and Johnson Controls | Date: 2013-01-23

An axial flow compressor 10 includes: a rotor 31 having a rotor vane 34; a first pressing member 41 joined to one end surface of the rotor 31; a second pressing member 42 joined to the other end surface of the rotor 31; a rotor shaft portion 46 penetrating the first pressing member 41, the rotor 31 and the second pressing member 42; and a nut 43 which fixes the first pressing member 41 and the second pressing member 42 on the rotor shaft portion 46 with the first pressing member 41 and the second pressing member 42 holding the rotor 31 between. The rotor shaft portion 46 is made of a material having a lower linear expansion coefficient than that of a material making at least a part of the rotor 31. The material making at least a part of the rotor 31 may be aluminum or aluminum alloy.


Patent
Tokyo Electric Power Company, Chubu Electric Power Co., Kansai Electric Power Co., Kabushiki Kaisha Kobe Seiko Sho, Danish Technological Institute DTI and Johnson Controls | Date: 2013-01-23

An axial flow compressor 10 includes: an electric motor 22 including a rotating shaft 22a; a compression portion 20 including a driving shaft 40 connected without a speed-up gear to the rotating shaft 22a of the electric motor 22 and a rotor 31 rotating together with the driving shaft 40, the compression portion 20 driving the driving shaft 40 and thereby compressing a working fluid; and a velocity reducing portion 24 having a space for reducing the flow velocity of a working fluid discharged from a discharge opening of the compression portion 20. The rotating shaft 22a of the electric motor 22 is connected to the end of the driving shaft 40 on the side of the discharge opening; and the velocity reducing portion 24 is disposed so as to surround the electric motor 22.


Patent
Tokyo Electric Power Company, Chubu Electric Power Co., Kansai Electric Power Co., Kobe Steel, Danish Technological Institute DTI and Johnson Controls | Date: 2014-03-05

The condensing apparatus 71 includes: a compressor 10 which has a compression part 20 compressing a working fluid; a condenser 13 which condenses the working fluid compressed by the compression part 20; and a spray mechanism 81 including a nozzle 82 which sprays a cooling fluid into a fluid passage 91 to cool the working fluid flowing through the fluid passage 91 between a discharge opening CS2 of the compression part 20 and an inlet 13a of the condenser 13.


Patent
Tokyo Electric Power Company and Iwabuchi Corporation | Date: 2014-12-10

A rod portion is coupled to a support wire at one end thereof and is rotatably coupled to a base portion of the anchor body portion. The anchor body portion includes the resistance plate body, an inner reinforcing plate, and an outer reinforcing plate, a first hitting portion is provided on the outer reinforcing plate, and a second hitting portion to be hit next to the first hitting portion is provided at a position higher than the first hitting portion.


Patent
Tokyo Electric Power Company | Date: 2013-01-23

To provide a public power supply system by which it is possible to use power in a public location both conveniently and safely without erroneous operations. A outlet 11, to which power is supplied from a distribution line 13, is installed in advance in a predetermined public location and a communication terminal 32 requesting the outlet 11 to supply power and a center server 31 are connected in advance via an Internet 33 and when there is a request to the outlet 11 to supply power, the center server 31 outputs a current supply command to a current control unit 14 via a communication network (Internet 24 or telephone network 25) and the current control unit 14 permits supply of a current to be supplied to the outlet 11 when there is a current supply command and there is information to allow supply of a current to the outlet generated using a remote control prevention device installed near the outlet.


Patent
Tokyo Electric Power Company | Date: 2016-12-14

A flow speed measurement method includes conducting a heat exchange at a prescribed part of a surface of a pipe, the flow speed measurement method further includes measuring a temperature distribution in a pipe-axis-direction on the surface of the pipe in a case that the heat exchange has been conducted at the prescribed part, and the flow speed measurement method further includes determining a flow speed of a thermal fluid flowing inside the pipe, based on the temperature distribution measured.

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