One of the greatest advantages of two bladed rotors is the cost savings realized by the elimination of a blade. Although it can be argued that a teetering hub is more complex and costly than the rigid hub of a three bladed rotor, technological advances have reduced this complexity and cost. For example elastomeric bearings for the teeter hinge have eliminated the need for ball or roller bearings and the maintenance associated with these components.
As part of a market liberalization plan, 80% of European households will be outfitted with energy-saving 'smart' utility meters over the next decade. Some 80 percent of European consumers are set to have smart energy meters installed in their homes by 2020 as part of a deal on liberalising the EU's energy market. This will allow them not only to carefully screen and control energy consumption, but also to sell energy back to the network, for instance by installing solar panels on the roof.
U.S. homeowners might start seeing energy monitoring services being offered alongside "triple-play" TV, phone and Internet service as early as this year. Think of it as a "smart home" incentive to get people to buy telecom broadband services. The question, of course, is whether homeowners will want to pay what telecoms will want to charge to make it worth their while.
The European Photovoltaic Industry Association (EPIA) presented its annual market figures to its members on Friday 20 March 2009. The global solar photovoltaic (PV) market grew to at least 5.5 GW in 2008 compared to 2.4 GW in 2007. Spain ranks first, followed by Germany. This year, experts believe the market could reach up to 7 GW, each individual country's development influencing the final figure.
The Solar Energy Industries Association released its 2008 U.S. Solar Industry Year in Review , highlighting a third year of record growth. SEIA reports 1,265 megawatts of solar power of all types were installed in 2008, raising total capacity 17 percent to 8,775 MW. The 2008 figure included 342 MW of solar photovoltaic (PV), 139 MW of solar water heating, 762 MW of pool heating and an estimated 21 MW of solar space heating and cooling. SEIA President and CEO Rhone Resch: "Despite economic pressures, solar energy demand grew tremendously in 2008. Solar is an emerging economic engine, creating thousands of jobs, unleashing billions in investment and building new factories nationwide.
On the second day of his tour of Southern California, President Obama highlighted his environmental jobs agenda with a visit to an electric-vehicle testing facility in Pomona, where he announced a $2.4-billion competitive grant program to make the electric vehicles more widely available . As a receptive audience of engineers and workers cheered his plans, Obama pledged to put a million plug-in hybrid vehicles on the road by 2015, and highlighted his offer of up to $7,500 in tax credits for Americans who purchase electric vehicles.
Consumers have heard for years that solar, wind, and geothermal power might soon cut their monthly energy bills. But things get exciting, even exotic, looking a decade or two ahead . Scientists envision that light bulbs will talk to switches, furnaces to windows, and everything to the Internet. Homes generate their own power in basement plants. Windows and paint change color to harvest sunlight or reject it. But ... cutting home energy use means changing consumer behavior and industry practice. That said, promising new technologies are emerging in labs, and some in commercial buildings, that in a decade or two could win over even the most skeptical builders and homeowners.
IBM is already staking claims in the smart grid industry to better manage electricity. Now it's doing the same for water, with a broad offering that will include developing sensor and intelligence networks for water utilities, smart water meters and a new technology for water filtration. IBM sees a role for information technology in the water world that's analogous to its role in smart grid projects according to Sharon Nunes, vice president of IBM's "Big Green Innovations" team. That includes sensor networks that can track water flow and quality, water meters that can give utilities and customers up-to-date information on water use and price, and complex "predictive" modeling to let water managers plan for the future.
An in depth look at the recent spate of investment in European thin film companies. The EU recently reinforced its commitment to renewable energy with an EU-wide directive that commits the EU to 20 percent renewable energy targets by 2020. Specifically from the solar industry perspective, a lot would depend upon Germany's continued support. Last month, the European Commission backed nearly €100 million euros ($129 million) in aid to two solar power projects in Germany.
America's electric power grid is subject to immense inefficiencies that arise from the interplay between centralized power generation, local power consumption and on demand utility service. The goal of the Smart Grid is to maximize the efficiency of existing generating facilities and accommodate the integration of renewable power resources. This article discusses manufactured energy storage devices ; enabling technologies that will be the beating heart of the Smart Grid for the next 10 to 20 years.
A group of nine leading biomass companies has formed the Biomass Thermal Energy Council (BTEC) , a non-profit association dedicated to advancing the use of biomass for heat and other thermal energy applications. The founding members of BTEC include biomass fuel producers, appliance manufacturers and distributors, and supply chain companies that represent the breadth of interests in the fast growing biomass thermal energy industry. Thermal energy accounts for roughly one-third of the energy used today in the United States. Renewable biomass resources can help meet this demand for thermal energy by providing heat for industrial processes as well as heating for businesses and homes.
BWEA, UK's leading renewable energy trade association, welcomed the Prime Minister's endorsement today of the enormous potential of renewable energy to create employment in the UK. Studies published by BWEA in October 2008, concluded that wind, wave and tidal energy projects could drive job creation and stimulate sectors of the economy crucial to delivering the country's 2020 renewable energy targets. The report commissioned by BWEA from Bain and Co. in late 2008 reiterated that "the wind industry is now established as one of the highest-growth industries in Europe, growing at an average rate of 12 percent over the last 5 years." Here is a link to the report.
If the energy efficiency across the United States was equivalent to that of the top performing states, the nation could save 1.2 million GWh, equivalent to 30 percent of its annual electricity use, according to a new report from the Rocky Mountain Institute (RMI) . The top five performing states, according to the report, are in order New York, Alaska, Connecticut, Delaware and California, all with an electric productivity greater than 6.2. The five worst performing states, with an electric productivity less than 2.3, are South Carolina, Alabama, Kentucky and Mississippi.
Alternative energy systems and the semiconductors used in them could grow at an annual rate of as much as 40 percent over the next several years, according to a new market research report. Solar, wind and fuel cell systems consumed an estimated $800 million in semiconductors in 2008, a figure that could rise to nearly $2 billion by 2012 , according to the report from The Information Network (New Tripoli, Penn.). The chips involved are primarily MOSFETs, IGBTs, microcontrollers, DSPs and discretes used to convert the renewable energy from AC to DC power. Some of the anticipated growth will come as the result of the recently passed economic stimulus package that calls for spending about $43 billion on alternative energy including about $4.3 billion on smart electric grids.
Smart meters, which measure and automatically communicate detailed electrical (or gas or water) usage information to the utility and, in some cases, enable greater consumer awareness and control over consumption, are being deployed at an increasing pace, especially in North America and Europe. The current trends in AMI markets represent a continuation of the growth rates charted by ABI Research over recent years. "We don't think that the economic crisis is having a significant effect," says Lucero. "Utilities' smart metering deployments are typically multi-year plans developed in the context of regulated market environments, and not terribly susceptible to short-term economic fluctuations."
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Sierra was the first to introduce a combination volumetric vortex and multivariable mass flow meter in 1997. Today, Sierra's completely redesigned InnovaMass® iSeries™ 240i/241i builds on two decades of success measuring five process variables for gas, liquid and steam with one connection. Now, with the latest hyper-fast microprocessors, robust software applications, field diagnostic and adjustment capability, and a new state-of-the-art flow calibration facility, Sierra's vortex iSeries delivers precision, performance, and application flexibility never before possible.