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Okukiyotsu Pumped Storage Power Station
The No. 1 and No. 2 are two large pumped-storage hydroelectric power plants in Yuzawa, Minamiuonuma, Niigata Prefecture, Japan. With a combined installed capacity of , the system is the third largest pumped-storage power station in Japan. The facilities are run by Electric Power Development Company (J-Power). Like most pumped-storage facilities, the power station uses two reservoirs, releasing and pumping as the demand rises and falls. Tashiro lake, formed by the Kassa Dam, is the upper artificial reservoir, while Futai Dam on the Kiyotsu river forms the lower reservoir. Both dams are rockfill type dams, with a height of 90 m and 87 m, respectively. The reservoirs were built between 1972 and 1978. Okukiyotsu No. 1 is the first plant to be built on the site, and employs four 260 MW pump/generator units, for a total net capacity of 1000 MW. The maximum water flow is 260 cubic meters per second. Construction on the plant started in 1972 and it became operational between 1978 and 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuzawa, Niigata
is a Towns of Japan, town located in Niigata Prefecture, Japan. , the town had an estimated population of 7,926, and a population density of 22.2 persons per km2. The total area of the town was . The town is famous for its onsen, hot springs. Geography Yuzawa is located in southwestern Niigata Prefecture, in a mountainous area bordering northern Nagano Prefecture and northern Gunma Prefecture. Due to its geographical location between the Sea of Japan and the surrounding Japanese Alps it has one of the highest annual snowfalls in Japan. There are numerous ski resorts within the region. Mount Naeba (2143 meters) is partly located within the town limits. Much of the town is within the borders of either the Jōshin'etsu-kōgen National Park or the Uonuma Renpo Prefectural Park. Surrounding municipalities *Niigata Prefecture **Minamiuonuma, Niigata, Minamiuonuma **Tōkamachi, Niigata, Tōkamachi **Tsunan, Niigata, Tsunan *Nagano Prefecture **Sakae, Nagano, Sakae *Gunma Prefecture * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kassa Dam
is a dam in Yuzawa, Niigata Prefecture, Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ..., completed in 1978. References Dams in Niigata Prefecture Dams completed in 1978 {{Niigata-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Infrastructure Completed In 1978
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that has mass when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pumped-storage Hydroelectric Power Stations In Japan
Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off-peak electric power is typically used to run the pumps. During periods of high electrical demand, the stored water is released through turbines to produce electric power. Although the losses of the pumping process make the plant a net consumer of energy overall, the system increases revenue by selling more electricity during periods of peak demand, when electricity prices are highest. If the upper lake collects significant rainfall or is fed by a river then the plant may be a net energy producer in the manner of a traditional hydroelectric plant. Pumped-storage hydroelectricity allows energy from intermittent sources (such as solar, wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In Niigata Prefecture
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Pumped-storage Hydroelectric Power Stations
The following page lists all pumped-storage hydroelectric power stations that are larger than in installed generating capacity, which are currently operational or under construction. Those power stations that are smaller than , and those that are decommissioned or only at a planning/proposal stage may be found in regional lists, listed at the end of the page. List of plants larger than 1000 MW capacity The table below lists currently operational power stations. Some of these may have additional units under construction, but only current installed capacity is listed. Under construction This table lists future 1,000 MW or larger stations that are under construction; some may be partially operational with a current installed capacity under 1,000 MW. See also * List of energy storage projects * List of hydroelectric power station failures * Lists of hydroelectric power stations * List of largest power stations * United States Department of Energy Global Ener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectricity In Japan
Hydroelectricity is the second most important renewable energy source after solar energy in Japan with an installed capacity of 50.0 gigawatt (GW) as of 2019. According to the International Hydropower Association Japan was the world's sixth largest producer of hydroelectricity in 2020. Most of Japanese hydroelectric power plants are pumped-storage plants. Conventional hydropower plants account for about 20 GW out of the total installed capacity as of 2007. Conventional hydropower potential of Japan is considered to be almost fully developed, with little opportunity for further capacity increase. In recent years, almost exclusively pumped storage plants were commissioned, significantly increasing the ratio of pumped storage capacity over conventional hydro. The large capacity of pumped storage hydropower was built to store energy from nuclear power plants, which until the Fukushima Daiichi nuclear disaster, Fukushima disaster constituted a large part of Japan electricity generation. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Power Stations In Japan ...
This page is a list of power stations in Japan that are publicly or privately owned. List Former power station * Senju Thermal Power Station See also *Electricity sector in Japan *Energy in Japan *List of largest power stations in the world References {{Economy of Japan Japan Power stations Power stations A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many pow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Futai Dam
is a dam in Yuzawa, Niigata Prefecture, Japan, completed in 1978. is a dam constructed on the Kiyotsu River, Shinano River System, found in Yuzawa, Niigata Prefecture, Japan. The 87-meter high rock-fill dam forms the lower reservoir of J-POWER's (Electric Power Development Co., Ltd.) large-scale pumped-storage hydroelectric power stations Oku-Seizu and Oku-Seizu No. 2. Water is continually transferred between the upper reservoir and Kassa dam (Lake Tashiro) and the lower reservoir, providing up to 1600 megawatts of electricity. History As Japan's longest river, after passing Nagano Prefecture, Shinano River converges with many tributaries as it flows through Niigata Prefecture. After the Second World War, the newly formed J-POWER began work on developing hydroelectric power projects on the Kiyotsu river system. The mountainous region houses many hydroelectric power stations due to its heavy snowfall and its abundance of rapids owing to its topology. In the 1960s, J-POWER ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Power Development Company
The , operating under the brand name J-POWER, formerly , is an electric utility in Japan. It mainly produces electricity from coal and hydroelectric power stations. It also has a few wind farms and is currently building a nuclear plant in Ohma, Aomori prefecture, that is scheduled to begin operations in November 2014. J-Power is the sole operator of the transmission lines connecting the four main islands of Japan. History After World War II, as a part of many changes implemented, the Supreme Commander of the Allied Powers ordered the dismantling of , which at the time provided electricity to all of Japan with a semi-governmental status. This was broken up into a number of utilities, which have become Japan's modern electric utility companies. However, in the battered state of post-war Japan, there were few investors out there to put money in these new companies, and certainly not enough to allow for sufficient R&D of power sources that Japan needed to keep up with the deman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minamiuonuma
is a city located in Niigata Prefecture, Japan. , the city had an estimated population of 55,354 in 20,047 households, and a population density of 96.1 persons per km². The total area of the city was . Geography Minamiuonuma is situated in a valley in a mountainous region of Niigata Prefecture known as “Snow Country” because of the heavy snowfall in winter. The city is bounded by Uonuma and the Echigo-Sanzan mountains in the north, and Yuzawa, a popular ski resort town, in the south. The Uono River flows through most of the city. The city and its surrounding areas are dotted with many onsen (hot springs) and ski resorts, making it a popular destination in winter. There are also a large number of paddy fields, and popular seasonal fruit like watermelon, as this is part of the major ''koshihikari'' rice-growing region in Japan. Parts of the city are within the borders of the Jōshin'etsu-kōgen National Park. Surrounding municipalities *Niigata Prefecture **Uonuma **Tōkam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north toward the East China Sea, Philippine Sea, and Taiwan in the south. Japan is a part of the Ring of Fire, and spans Japanese archipelago, an archipelago of List of islands of Japan, 6852 islands covering ; the five main islands are Hokkaido, Honshu (the "mainland"), Shikoku, Kyushu, and Okinawa Island, Okinawa. Tokyo is the Capital of Japan, nation's capital and largest city, followed by Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, Kobe, and Kyoto. Japan is the List of countries and dependencies by population, eleventh most populous country in the world, as well as one of the List of countries and dependencies by population density, most densely populated and Urbanization by country, urbanized. About three-fourths of Geography of Japan, the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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