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. 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...
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.
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.
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.
Here are three of the more high profile startups in Nuclear Fusion.
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.
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.
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...
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 installed 291,513 Photovoltaic (PV) systems while the rest of the country has 191,612 systems.
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.
By Brooks Hays for UPI: Researchers at the University of North Dakota believe geothermal energy production should be a significant part of America's future energy portfolio. But to get the industry off the ground, proponents are looking to an industry not normally associated with renewable energy -- gas and oil drillers. "Oil- and gas-producing sedimentary basins in Colorado, Illinois, Michigan, and North Dakota contain formation waters of a temperature that is adequate for geothermal power production," researchers wrote in their new study on the subject, published this week in the journal Geosphere. Geothermal energy requires heat, and natural sources of heat lie deep within the ground. Gas and oil drillers have already built the infrastructure to access deep-lying natural resources. Of course, gas and oil drillers want gas and oil, not heat. But in their quest for gas and oil, they get heat nonetheless. Cont'd...
By Teresa Meng for The Chronicle: A Duke University professor has been awarded a $5.2 million U.S. Department of Energy grant to explore ways of making algae a cost efficient fuel source. The Duke-led Marine Algae Industrialization Consortium, comprised of both universities and energy companies, aims to lower the cost of algae oil, which can be used in place of fossil fuels. The team is working to identify algae proteins that can be used in protein-based nutritional products in order to make the entire algae farming process more cost-efficient. Zackary Johnson, Arthur P. Kaupe assistant professor of molecular biology in marine science, is the principal investigator of MAGIC and has been researching algae biofuels for eight years. “The goal of the research is to drive down the cost of algae biofuel by increasing the value of proteins within algae,” Johnson explained. Johnson and his team at MAGIC are trying to use multiple ways so that algae grown for biofuel extraction can also be sold after oil is extracted from the algae. Proteins in algae could be used for nutritional products such as poultry feed, fish feed or even food for humans. Extracting and selling these proteins would lower the overall production cost of extracting oil from the algae. In the future, algae proteins as food sources might even be a sustainable approach to feed the world. Algae biofuel has the potential to become a major source of sustainable energy because it can be produced quickly, easily and in high quality, Johnson said. Cont'd...
One of the main parameters affecting the real-world measurement of solar radiation by pyranometers is temperature response.
Despite the historic success of tax credits in helping to move renewable energy industries forward, the reality is that these credits might not be renewed. Industries will have to rely more heavily on the savings possible through equipment and technology improvements.
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Each pre-bundled package is designed to make solar plus energy storage easy. By combining OutBack's most popular FLEXpower pre-wired systems with matched OutBack energy storage, SystemEdge takes the guesswork out of installing solar plus storage. Every SystemEdge package includes a FLEXpower factory pre-wired system, application-specific EnergyCell batteries and racking, FLEXware ICS Plus combiner and all the necessary connection hardware.