Research Report - Better Biofuels Ahead - The Road to Low-Carbon Fuels
By Emily Cassidy, Research Analyst for EWG.org: Biofuels produced from switchgrass and post-harvest corn waste could significantly reduce the emissions that contribute to climate change, according to an analysis by EWG and University of California biofuels experts.
EWG’s analysis found that the life cycle carbon intensity of cellulosic ethanol from switchgrass was 47 percent lower than that of gasoline. Ethanol made from corn stover – the leaves and stalks that remain in the field after the grain is harvested – has a life-cycle carbon intensity 96 percent lower than gasoline’s.[1]
By contrast, studies have found that the life cycle carbon intensity of corn ethanol is greater than that of gasoline (Mullins et al. 2010, EPA, 2010a). Yet current federal policies strongly favor the production of conventional biofuels such as corn ethanol at the expense of lower-carbon alternatives. View full article...
Top Tips For Mounting PV On Tile
The 4 most common options for mounting PV modules on tile roofs are tile Hooks, hanger bolt assemblies, standoffs that require drilling or cutting of tile, and flashing systems that replace a complete tile.
IHS Warns of Potential Solar Wafer Supply Shortage in 1H 2016
As a result of strong market demand and insufficient supply, wafer ASPs have slowly started to rise since June. This price increase is significant, considering the declining prices for polysilicon -- and costs of wafer production - this year.
UK building the world's largest offshore wind farm
By Kelly Hodgkins for Digital Trends: Danish state-owned company Dong Energy A/S plans to set a new world record for the world’s largest offshore wind farm, breaking the existing record currently held by the 630-megawatt London Array, another facility built by Dong. The new U.K. wind farm will be located in the Irish Sea, about 12 miles off the west coast of Great Britain. When commissioned, it will provide enough energy to power almost a half million homes.
It’s no surprise that Dong is behind this effort, as it is Denmark’s largest energy company and the world’s largest developer of offshore wind power. The company has a longstanding relationship with the UK, constructing and, in some cases, operating multiple offshore wind facilities, including those in Barrow, Burbo Bank, and Walney Island. Between these projects and others in Germany, Dong now has a total of 5.1 gigawatts of offshore wind capacity. It aims to expand this capacity even further with a projected goal of 6.5 gigawatts of offshore wind energy production by 2020. Cont'd...
Thin film perovskite solar cell passes the efficiency test
Matthew Gunther for Chemistry World: Perovskite solar cells may one day rival silicon-based technologies, but their performance outside the laboratory has been a constant source of contention in the past year. Now, an international team of scientists has manufactured the first thin film perovskite solar cell with a reported efficiency that has beenofficially recognised by an accredited national test laboratory.1
Since their development in 2012, the performance of light-harvesting metal–organo halide structures has seemingly improved at a staggering rate, with their efficiency increasing by six percentage points in just two years – the same increase took multi-crystalline solar cells over two decades.
But their stability has been brought into question, with some international test centres taking issue with perovskite solar cells that are so unstable that they may degrade spontaneously in air, making it hard for them to assess their performance.
It’s a state of affairs that Michael Grätzel from the Ecole Polytechnique Fédérale de Lausanne in Switzerland has had trouble dealing with. ‘Conspicuously, you could see that from the very beginning there was very scarce information on the stability of these devices,’ comments Grätzel. ‘I have raised that issue many times – one would think that now everybody does stability work after this alarm was sounded, but not so.' Cont'd...
Next Generation Inverters - HD-Wave Technology
With HD-Wave technology, SolarEdge initially creates a much smoother sine wave (a high-definition wave) thus avoiding the heavy and costly magnetic components while gaining efficiency.
Three Nuclear Fusion Startups
Here are three of the more high profile startups in Nuclear Fusion.
Morocco to Build World's Largest Concentrated Solar Power Plant
Cole Mellino for EcoWatch: Morocco imports 97 percent of its energy, and yet it has one of the highest rates of solarinsolation of any country—about 3,000 hours of sunshine per year, according to the Solar GCC Alliance. To put that in perspective, the Guinness Book of World Records puts Yuma, Arizona as the sunniest place on Earth with an average of 4,055 hours of sunshine per year (the theoretical maximum is 4,456), whereas the sunniest place in Germany, which still has a robust solar industry, gets a mere 1,800 sunshine hours a year. So it’s no surprise that Morocco is tapping into its abundant sunshine for energy.
Morocco is building “a complex of four linked solar mega-plants that, alongside hydro andwind, will help provide nearly half of Morocco’s electricity from renewables by 2020,” reports The Guardian. When the entire project is finished, it will be the world’s largest concentrated solar power plant in the world. The first phase, Noor 1, will go live next month. Cont'd...
Eos Partners with NEC Energy Solutions to Supply Game-Changing Utility Scale Battery Solution
Because our technology is safe, modular, and easy to install, we can deploy this solution on a distributed basis-within the load centers where this capacity is needed most.
Growth in Wind Consumption for Top 20 Countries
The BNEF study shows that the global average levelised cost of electricity, or LCOE, for onshore wind nudged downwards from $85 per megawatt-hour in the first half of the year, to $83 in H2, while that for crystalline silicon PV solar fell from $129 to $122.
United Utilities installs Europe's largest floating solar power project on reservoir
By Emily Gosden, Energy Editor for Telegraph UK: Water giant United Utilities is to install Europe’s biggest floating solar power system on a reservoir near Manchester, as it seeks to capitalise on the novel technology to cut its energy costs.
The 12,000 panel, £3.5m development will be only the second of its kind in Britain, dwarfing an 800-panel pilot in Berkshire last year, and will be the second biggest in the world after a scheme in Japan.
Installation of the panels is due to begin on Monday at the Godley reservoir in Greater Manchester, where it will provide a third of the power for a water treatment works.
The system is scheduled to be completed before Christmas, in order to qualify for subsidies before they are due to be drastically cut in the new year. Cont'd...
Texas hits new wind power milestone on Thursday
By Jordan Blum for Fuel Fix: The Texas electric grid hit a new record for wind power use early Thursday, as the state continues dominating the rest of the nation in wind farm growth.
At 12:30 am Thursday, the main Texas grid operator reported that nearly 37 percent of demand was met with wind power. The Electricity Reliability Council of Texas, which manages nearly 90 percent of the state’s electric needs, said it used 12,237.6 megawatts of wind power at the time. That bested a previous record set on Sept. 13 of 11,467 megawatts.
A megawatt powers about 500 typical Texas residences during periods of normal demand.
The new record came the same day as the American Wind Energy Association reported Texas accounted for nearly half of the nation’s wind power growth in the third quarter of the year. Texas added 771 megawatts of wind generation in the third quarter and, nationwide, about 1,600 megawatts were put online. Texas now has about 16,400 megawatts of wind power, according to the AWEA, which is about 10,000 megawatts more than the second and third windiest states, California and Iowa. Cont'd...
Extracting Heat From The Earth
Geothermal systems provide consistent indoor temperature and humidity levels, while operating quietly. If you are an environmentalist, geothermal systems reduce the carbon footprint of your home or business by producing heating and cooling on site with the renewable resource of your land.
California Has More PV Systems Than The Rest Of The Us Combined
California installed 291,513 Photovoltaic (PV) systems while the rest of the country has 191,612 systems.
Extreme Winter Weather Hurts 2015 European Solar Performance
Conducting thorough weather analysis is essential for understanding in the short-term whether a project is performing as it should be, based on the available resource.
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