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Glycon Garcia

Donald Sadoway: The missing link to renewable energy | Video on TED.com - 0 views

  • Donald Sadoway: The missing link to renewable energy
  • What's the key to using alternative energy, like solar and wind? Storage -- so we can have power on tap even when the sun's not out and the wind's not blowing. In this accessible, inspiring talk, Donald Sadoway takes to the blackboard to show us the future of large-scale batteries that store renewable energy. As he says: "We need to think about the problem differently. We need to think big. We need to think cheap." Donald S
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    "Donald Sadoway: The missing link to renewable energy Tweet this talk! (we'll add the headline and the URL) Post to: Share on Twitter Email This Favorite Download inShare Share on StumbleUpon Share on Reddit Share on Facebook TED Conversations Got an idea, question, or debate inspired by this talk? Start a TED Conversation, or join one of these: Green Home Energy=Hydrogen Generators-alternative sources Started by Kathleen Gilligan-Smith 1 Comment What is the real missing link in renewable energy? Started by Enrico Petrucco 8 Comments Comment on this Talk 60 total comments Sign in to add comments or Join (It's free and fast!) Sort By: smily raichel 0 Reply Less than 5 minutes ago: Nice smily raichel 0 Reply Less than 5 minutes ago: Good David Mackey 0 Reply 3 hours ago: Superb invention, but I would suggest one more standard mantra that they should move on from and that is the idea of power being supplied by a centralised grid. This technology seems to me to be much more beneficial on a local scale, what if every home had its own battery, then home power generation becomes economically more viable for everyone. If you could show that a system like this could pay for itself in say 5 years then every home would want one. Plus for this to be implemented on a large scale requires massive investment that could be decades away. Share the technology and lets get it in homes by next year. Great ted talk. Jon Senior 0 Reply 1 hour ago: I agree 100%. Localised energy production would also make energy consumers more conscious of their consumption and encourage efforts to reduce it. We can invent and invent all we want, but the fast solution to allowing renewable energies to take centre stage is to reduce the base energy draw. With lower baseline consumption, smaller "always on" generators are required to keep the grid operational. Town and house-l
Colin Bennett

Myanmar power infrastructure - 0 views

  • As the economy attempts to take off from the current position, the power sector holds the key to support rapid economic growth in the currently power starved country. This is likely to create significant investment opportunities in the power sector. Currently, there exists a major power crisis in the country. The scope to bridge the impending power demand-supply gap offers huge investment opportunities for both the multinational and domestic companies across the power industry value chain from generation to transmission and distribution and in distributed power generation including power rental sector.
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    As the economy attempts to take off from the current position, the power sector holds the key to support rapid economic growth in the currently power starved country. This is likely to create significant investment opportunities in the power sector. Currently, there exists a major power crisis in the country. The scope to bridge the impending power demand-supply gap offers huge investment opportunities for both the multinational and domestic companies across the power industry value chain from generation to transmission and distribution and in distributed power generation including power rental sector
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Superconductor cables giving LIPA energy efficiency - 0 views

  • It looks ordinary, like a razor-thin metal ribbon. But the high-temperature superconductor power transmission cable the Long Island power Authority recently installed in Ronkonkoma revolutionizes how electricity is delivered, utility and federal officials said.
  • The cable -- which is a fraction of the size of a traditional copper wire but can carry three times the power -- made its ceremonial debut yesterday with officials from LIPA, the U.S. Department of Energy and officials from the company that makes the cable. It went online April 22, the world's first use of the new technology in a commercial power grid. Utilities around the world are looking at superconductivity to improve efficiency of their grids and make them less vulnerable to blackouts. LIPA has buried three 2,000-foot wires in its right-of-way, and it will be installing a second generation of the wire in the same area as a test.
  • The wire, manufactured by American Superconductor Corp., conducts 150 times the electricity of the same sized copper wires, strand-for-strand. This means transmission cables can be far smaller and still conduct as much as three to five times more power in a smaller right-of-way. When operated at full capacity, the 138-kilovolt cable LIPA uses is capable of transmitting up to 574 megawatts of electricity, enough to power 300,000 homes. The Department of Energy has funded $27.5 million of the $58.5 million cost of the project as part of its effort to spur creation of a modern electricity superhighway free of bottlenecks and that transmits power to customers from remote generation sites such as wind farms.
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  • Superconducting technology relies on a phenomenon first identified in 1911. When chilled sufficiently by a recirculating coolant -- liquid nitrogen in LIPA's case -- superconducting material loses virtually all resistance to the flow of the alternating current used in a commercial power grid.
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    It looks ordinary, like a razor-thin metal ribbon. But the high-temperature superconductor power transmission cable the Long Island power Authority recently installed in Ronkonkoma revolutionizes how electricity is delivered, utility and federal officials said. The cable -- which is a fraction of the size of a traditional copper wire but can carry three times the power -- made its ceremonial debut yesterday with officials from LIPA, the U.S. Department of Energy and officials from the company that makes the cable. It went online April 22, the world's first use of the new technology in a commercial power grid. Utilities around the world are looking at superconductivity to improve efficiency of their grids and make them less vulnerable to blackouts. LIPA has buried three 2,000-foot wires in its right-of-way, and it will be installing a second generation of the wire in the same area as a test. "We view superconductor power cables as an important option that will help us further enhance the reliability of our grid as we meet our customers' increasing demands for electric power," LIPA chief executive Kevin Law said. He said the new cable allows the utility to increase capacity where its system has bottlenecks while increasing reliability and longevity and lowering costs. The wire, manufactured by American Superconductor Corp., conducts 150 times the electricity of the same sized copper wires, strand-for-strand. This means transmission cables can be far smaller and still conduct as much as three to five times more power in a smaller right-of-way.
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Fuel cell power for new World Trade Center - 0 views

  • The redeveloped World Trade Center will be “one of the largest fuel cell installations in the world” according to the New York Power Authority (NYPA). Under the US$10.6 million agreement between NYPA and fuel cell developer and provider UTC Power, fuel cells with a total capacity of 4.8MW will provide an on-site supplement to the renewable and other clean energy that will Power the rebuilt centre. The first fuel cells will be delivered to the Freedom Tower in January 2009, and will be owned and operated by the Port Authority, which also owns the building. The fuel cells for the other three towers will be owned and operated by World Trade Center Properties, LLC. “Fuel cells are one of the environmentally beneficial technologies that the Power Authority is investing in under Governor Paterson’s leadership to combat greenhouse gas emissions and diversify the state’s energy mix. To date, we’ve installed 15 fuel cells in New York City and other locations, and expect to add to this total in support of the Governor’s ambitious goals for significant increases in the state’s renewable Power,” says Roger B Kelley, NYPA President and Chief Executive Officer.
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    The redeveloped World Trade Center will be "one of the largest fuel cell installations in the world" according to the New York Power Authority (NYPA). Under the US$10.6 million agreement between NYPA and fuel cell developer and provider UTC Power, fuel cells with a total capacity of 4.8MW will provide an on-site supplement to the renewable and other clean energy that will Power the rebuilt centre. The first fuel cells will be delivered to the Freedom Tower in January 2009, and will be owned and operated by the Port Authority, which also owns the building. The fuel cells for the other three towers will be owned and operated by World Trade Center Properties, LLC. "Fuel cells are one of the environmentally beneficial technologies that the Power Authority is investing in under Governor Paterson's leadership to combat greenhouse gas emissions and diversify the state's energy mix. To date, we've installed 15 fuel cells in New York City and other locations, and expect to add to this total in support of the Governor's ambitious goals for significant increases in the state's renewable Power," says Roger B Kelley, NYPA President and Chief Executive Officer.
Colin Bennett

China transmission cable growth - 0 views

  • PM Wen Jiabao reaffirms China’s commitment to upgrading its power grids in the rural regions during the China State Council board meeting held on 5 Jan 2011. This comes on the back of an increase in electricity consumption in rural areas, following the implementation of China’s rural home appliance subsidy program. Many places are still suffering from an inadequate supply of power grid infrastructure…ben_oh : …Hu An is poised to benefit from China’s estimated Rmb200b invmt in its rural power grids btwn 2010-12, of which two-thirds will be spent on power transmission eqpt such as power wires and cables, transformers, wire poles and towers. In particular, China is expected to shift its focus from main power grids (220-750 KV) to the ultra high voltage power grids (800-1000 KV) and rural/ urban distribution power grids (<110KV)…
  • Hu An Cable: PM Wen Jiabao reaffirms China’s commitment to upgrading its power grids in the rural regions during the China State Council board meeting held on 5 Jan 2011. This comes on the back of an increase in electricity consumption in rural areas, following the implementation of China’s rural home appliance subsidy program. Many places are still suffering from an inadequate supply of power grid infrastructure…ben_oh : …Hu An is poised to benefit from China’s estimated Rmb200b invmt in its rural power grids btwn 2010-12, of which two-thirds will be spent on power transmission eqpt such as power wires and cables, transformers, wire poles and towers. In particular, China is expected to shift its focus from main power grids (220-750 KV) to the ultra high voltage power grids (800-1000 KV) and rural/ urban distribution power grids (<110KV)…
Colin Bennett

Smart Grid: PHEV adoption and grid impact: a cost-efficient solution to accommodate increased load - 0 views

  • Superconductor cables, only recently available for utility applications, uniquely solve these issues. A single distribution voltage superconductor cable can carry amounts of power normally associated with transmission voltage levels, therefore eliminating the need for multiple cables and greatly simplifying placement issues.  Superconductor cables also have a unique dual-personality; under normal conditions they conduct power very efficiently, but during faults they actually limit the amount of current that can flow through them. This eliminates the risk of substation equipment damage from excessively high fault currents when paralleling substations. The installation of superconductor cable-powered bus ties between distribution substations serve as an efficient means to utilize more effectively and fully the existing power delivery infrastructure while simultaneously increasing reliability.
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    Superconductor cables, only recently available for utility applications, uniquely solve these issues. A single distribution voltage superconductor cable can carry amounts of power normally associated with transmission voltage levels, therefore eliminating the need for multiple cables and greatly simplifying placement issues. Superconductor cables also have a unique dual-personality; under normal conditions they conduct power very efficiently, but during faults they actually limit the amount of current that can flow through them. This eliminates the risk of substation equipment damage from excessively high fault currents when paralleling substations. The installation of superconductor cable-powered bus ties between distribution substations serve as an efficient means to utilize more effectively and fully the existing power delivery infrastructure while simultaneously increasing reliability.
Colin Bennett

Wireless Charging Technology: Is It Disruptive? - 1 views

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    "Centuries ago, Nikola Tesla envisioned and pioneered the concept of wirelessly transmitting power over long distances through the Earth's ionosphere. In the recent past, wireless energy transfer has occurred by way of an electromagnetic (EM) field set to a certain frequency level. While transmission efficiency over longer distances is attained to an extent by this method, it becomes increasingly difficult when complicated pointing and tracking mechanisms are mandatory to maintain the right wavelength between the transmitter and the receiver. Another drawback to this approach is that any object that falls between the transmitter and the receiver impedes the beam, thus interrupting power transmission to a potentially harmful degree if the power level goes beyond a certain threshold point. Even though microwave frequencies could prove effective to transmit power over long distances through a radiated EM field, the aforementioned caveats still apply. The other possible way to wirelessly transmit power is by non-radiative fields. For instance, a transformer operates by magnetic induction drawing similarities to wireless power transfer. Energy transfer in a transformer happens from the primary coil to a secondary coil in the absence of a direct electrical connection. The same approach can be seen in inductive chargers found in electric toothbrushes, for example. However, for this functionality to operate smoothly, primary and secondary coils must be positioned in close proximity to one another."
Colin Bennett

Sterlite Technologies reports revenue growth of 32% and EBITDA growth of 90 % on YoY basis - 0 views

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    "Power Segment highlights The Power products and solutions business revenues stood at Rs. 461 Crores, up 61% Q-O-Q as conductor volumes at about 27,000 MT have started showing signs of improvement In the Power products and solutions segment, we have added new accounts in the European markets for Power conductors and in India for OPGW products. Order book at Rs 2400 crores in Power products segment remains healthy and well diversified with exports nearly accounting for 40% of total order book. Power Transmission Segment East-North Interconnection Company Ltd. (ENICL) became fully operational with completion of the second 400 KV double-circuit quad transmission line connecting Bongaigaon in Assam to Siliguri in West Bengal which makes us the only private transmission utility to successfully commission the first private mega transmission project in the country. In Bhopal Dhule Transmission Company Ltd. (BDTCL) project, few more milestones were achieved with commissioning of two more lines and two substations taking us to nearly 60% completion for the project The current revenue generating elements of the first three projects have an annualized revenue run rate of Rs 287 crore which has shown a major increase from the annualized revenue run rate of Rs. 68 crores at end of previous quarter With Sterlite's investments completed in these projects, we expect the other 2 projects BDTCL and JTCL to be fully operational progressively in next 2 quarters."
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Solar Powered Air Conditioner Released - 0 views

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    A company called GreenCore Air has released an air conditioner than can be powered by a single 170 watt solar panel. The GreenCore air conditioning unit can heat and cool a 600 square foot room. It runs on DC power, so there is no need to put an AC inverter between the solar panel and the air conditioner. This eliminates the power losses associated with converting AC to DC
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    A company called GreenCore Air has released an air conditioner than can be powered by a single 170 watt solar panel. The GreenCore air conditioning unit can heat and cool a 600 square foot room. It runs on DC power, so there is no need to put an AC inverter between the solar panel and the air conditioner. This eliminates the power losses associated with converting AC to DC. When the sun is not out the unit runs on the battery bank which is integrated within the unit. There two version of the air conditioner: a fixed one, and a mobile one that is mounted on wheels. GreenCore units are being tested by a McDonald's restaurant and the U.S. Navy.
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Pioneering Dye Sensitive PV Cells & Ethics-Driven Business Models - 0 views

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    \nCadiz, Spain - While significant challenges remain and large-scale applications appear relatively far out on the horizon, smaller scale applications, such as organic light emitting diodes (OLEDs), are already being built into a variety of electronic products. Industry pioneers, such as G24i, have begun manufacturing their first generation of products, which in G24i's case includes a DSC-powered mobile phone charger and an award-winning "Lighting Africa" portable lamp that marries cutting-edge LED and dye-sensitized thin-film PV technologies. \n\nLooking to bring off-grid electrical power options to people in Kenya, Nigeria, Rwanda, South Africa and a still growing range of African countries, G24i in May was awarded the World Bank Group's 2008 "Lighting Africa Development Marketplace" prize for its solar-powered LED light, which uses the company's proprietary dye-sensitized thin-film solar cells in concert with light emitting diodes (LED) produced by Dutch lighting manufacturer Lemnis. \n\nG24i dye-sensitized thin-film solar cells are proving themselves rugged enough to endure some of the harshest conditions on the planet. Besides enduring the rigors of operating in various African locations, the company's DSC cells were used to generate electrical power for British explorer Robert Swan and his team during their two-week 'E-Base Goes Live' project in which they traveled to Antarctica. Despite poor sunlight, the cells contributed to the successful powering of satellite, digital and video conferencing and other communications equipment throughout the two-week long expedition.\n\nThe first person to walk to the North and South Poles, Swan is moving on to an educational sailing around the world project and G24i is working on sails for his craft that will have thin-film dye-sensitized PV cells embedded in them. \n
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Plants are unlikely to cut output (China) - 0 views

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    "In my personal opinion, most plants are unlikely to actually cut back because of profit factors. The smelters agreed to cut back mainly because of tight power and high power costs, but for some, supply is not much affected, only costs have gone up. But the cost of shutting down and restarting might be even higher than the increased power prices," a source from Shaanxi Tongchuan aluminum said July 11. A source from Chuangyuan aluminum said, "We also signed the agreement, but that's just a piece of paper; there is no definite ruling to say we must cut output. We have no plans to cut output at the moment or in the short term, but we may consider cutting back in the future." The Chuangyuan source also cited the power versus shutdown cost ratioand noted that in any case the company has its own power plant. "We don't expect many of the other smelters at the meeting to cut either, including Chalco ... everyone will wait and see," he said. "Domestic prices have risen slightly, but mainly affected by the rise on the LME yesterday - there seems to be little fundamental impact within China itself," an analyst from Beijing Antaike said July 11. "People are all very uncertain and maybe confused now since there are no definite details on what the cutbacks will be." A Chinese trader said domestic demand and trade activity were also expected to slow due to the Olympics, and those plants that actually shut may be able to restart in the fourth quarter, so the impact on domestic prices would be minimal.
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NEC Electronics Introduces Low-Power 16-bit Microcontrollers - 0 views

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    NEC Electronics America Inc. introduced to the Americas twenty-two new 16-bit All Flash microcontrollers (MCUs) for compact, low-power, battery-operated, and sensor-enabled systems. Based on NEC Electronics' high-performance 16-bit 78K0R CPU core, the new 78K0R/Kx3-L MCUs offer very low power consumption to extend battery life, and more on-chip integration to help reduce the size and cost of battery-driven and sensor-enabled systems, such as fire and security alarms, meters, industrial sensors, anti-shake digital cameras, handheld medical diagnostics devices, and data-logging and point-of-sale terminals. In addition to low power consumption, the new lineup offers high-performance on-chip oscillators, built-in circuits for sensor functions, and extended system operating time. "As environmental awareness has grown, energy-saving systems have become particularly reliant on MCU technology," said Jim Trent, Vice President, Multipurpose Microcontroller and Automotive Group, NEC Electronics America. "Over the past several years, NEC Electronics has delivered many ultra-low-power 8- and 32-bit MCUs that have met the demand for energy efficiency. With the introduction of the new 78K0R/Kx3-L devices, however, NEC Electronics is now delivering the benefits of energy efficiency in its 16-bit products."
Colin Bennett

Does a Big Economy Need Big Power Plants? - 0 views

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    This evolution made sense at first, because power stations were costlier and less reliable than the grid, so by backing each other up through the grid and melding customers' diverse loads, they could save capacity and achieve reliability. But these assumptions have reversed: central thermal power plants now cost less than the grid, and are so reliable that about 98 percent to 99 percent of all power failures originate in the grid. Thus the original architecture is raising, not lowering, costs and failure rates: cheap and reliable power must now be made at or near customers.
Colin Bennett

Breakthrough for superefficient conversion of heat to electricity could boost coal plant efficiency to 54% from 30-45% and concentrated solar power to 40% - 0 views

  • 54% Efficient Coal Plants for one third less coal for the same powerThe new thermoelectronic approach promises efficiencies in the high 40-50% range, achieving the latter by acting as a “topping cycle” to a lower temperature steam system. For example a coal furnace burns at ~1500 C (1773 K), but a steam turbine runs at 700 C (973 K) and outputs at 200 C (473 K). Thus there’s significant loss due to the mismatch between furnace and steam power-cycle. A thermoelectronic converter covering the 1773-973 K range will add significantly to the overall power extracted by the power-plant pushing its efficiency above 50%. In this case a 45% efficient coal plant can be pushed to 54%, thus increasing the power output for no additional fuel costs and NO MOVING PARTS.40% efficient concentrated solar powerSwitching to solar-power applications, imagine a thermoelectronic converter at the centre of a concentrator system which focuses sunlight to 500 times its normal intensity (temp ~1900 K.) By using a Photon Enhanced Thermionic Emission (a cousin of the Photoelectric effect) the system can convert raw sunlight to electrical power at over 40% efficiency
James Wright

Germany - Aurubis highlights production risks due to Germany's new power legislation - 0 views

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    The German copper cathode and semis fabricator, Aurubis, has reported its concerns over the Federal Government's decision to phase out nuclear power. Aurubis said that the new legislative package, which involves the decommissioning of seven base load power plants, does not ensure that electricity will remain secure and affordable for the company. As such, it believes that power supply now represents a significant downside risk to its operations. In the event of a momentary power failure, the company would suffer a half-day cathode production loss. A sustained power shortage or blackout could cause substantial damage to plant equipment as liquid melts solidify. Aurubis said that steps were required to be taken to expand the power grid and increase power plant capacities. The company currently uses 1Bn KWh/y, approximately the same amount as 600,000 inhabitants.
Colin Bennett

The Wireless Power Consortium - 0 views

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    Members will not charge royalties for patents that are essential for implementing low power receivers. A wireless power receiver is a 'low power receiver' when it is a consumer product, such as a mobile phone or battery, capable of receiving no more than 5 Watt from a wireless power transmitter. These royalty-free licenses are available until 2014.
Colin Bennett

EIA: U.S. electric system interconnections - 2 views

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    "In the United States, the power system consists of more than 7,300 power plants, nearly 160,000 miles of high-voltage power lines, and millions of low-voltage power lines and distribution transformers, which connect 145 million customers."
Colin Bennett

ABB wins substations order in India - 0 views

  • “This order supports the development of 765 kV power infrastructure in India, enhancing transmission capacity and efficiency to help meet the growing demand for power,” said Peter Leupp, head of ABB’s power Systems division. “These substations will also strengthen grid reliability and improve power stability in the region.”ABB is responsible for the design, engineering, supply and commissioning of the 765 kV and 400 kV air-insulated switchgear (AIS) substations. The switchyards will also be equipped with IEC 61850 compliant automation, control and protection solutions, which enable the development and integration of intelligent power networks. The project is scheduled to be completed by 2012.Substations are key installations in the power grid that transform voltage levels and facilitate the safe and efficient transmission and distribution of electricity. They include equipment that protects and controls the flow of electrical power, enhancing grid reliability.
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Renewable Energy Focus - 0 views

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    BLYTH, NORTHUMBERLAND, UK, August 4, 2008. The New and Renewable Energy Centre (NaREC) in the UK and CENER, National Renewable Energy Centre of Spain are working together to find new ways of generating and distributing power from small-scale renewables within communities. The one year project will investigate ways to allow communities to generate and use their own power from renewable energy resources, in a reliable and cost-effective way. With increasing use of renewable energy sources, a significant amount of interest has developed across Europe in so-called 'smart-grid' systems better capable of transmitting and distributing power from different renewable resources in a reliable, flexible electrical network. The team is currently identifying existing communities within Spain and the UK with populations of between 10 and 25 000 which can be used as test subjects for 'smart-grid' renewable systems. The project aims to demonstrate the most appropriate technical solutions for integrating low carbon power generation technologies into a localised, community-based electrical system.
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SolarGenerations Program Expands to Include Wind & Hydro - 0 views

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    Sierra Pacific Power and Nevada Power Company have announced that they are expanding their SolarGenerations renewable energy programs to include cash incentives for wind and hydroelectric Power systems as well as solar photovoltaic (PV) systems. Both Nevada utilities are wholly-owned subsidiaries of Sierra Pacific Resources. "These projects deliver benefits on many levels: they reduce energy bills, provide learning opportunities, help the environment, and increase our energy independence by taking advantage of abundant natural energy sources right in our own backyard." -- John Hargrove, Program Manage, Sierra Pacific & Nevada Power The last session of the Nevada State Legislature made the SolarGenerations demonstration program permanent, doubling the total amount of installed photovoltaic energy eligible for rebates from 1,900 kilowatts (kW) to 3,760 kW, and adding the new WindGenerations and HydroGenerations programs. Together, these programs are called RenewableGenerations.
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