Hugh Cowley for Scientific American: Perovskites have arguably transformed solar energy more in the last few years than other technologies have in decades. But British researchers have called into question optimistic predictions of undiscovered perovskites. Hybrid perovskites are a mix of organic and inorganic ions with the same crystal structure as calcium titanium oxide (CaTiO3). Halide perovskites are a subset of these structures containing halide ions such as fluoride or chloride. Iodide perovskites such as methylammonium lead iodide (CH3NH3PbI3) can convert sunlight to electricity. Researchers use a decades-old geometric 'tolerance factor' to propose new combinations of ions that will form stable perovskites. Now, Robert Palgrave and his team at University College London, UK, have reassessed the validity of the tolerance factor in predicting new hybrid perovskite structures. Cont'd...
ViZn Energy Systems Receives Industry-Wide Recognition from Leading Energy and Business Publications
Named as a leading energy storage firm in Austin Business Journal, Energy CIO Insights, and Energy Storage News
Brad Plumer for VOX : Rooftop solar is expanding rapidly in the United States — by some estimates, a new system goes up every four minutes. There are plenty of reasons for that, from falling prices to generous federal subsidies to innovative leasing schemes. But there's another, little-discussed factor here: Residential solar power is contagious. Yep, contagious. Studies have found that if you install solar photovoltaic panels on your roof, that increases the odds that your neighbors will install their own panels. SolarCity, the largest solar installer in the United States, just published some fascinating data on this "contagion" effect. The company has installed 230,000 rooftop systems nationwide (often by allowing customers to lease panels rather than buy them upfront). It says fully one-third of customers were referred by a friend or neighbor. SolarCity has also made some neat animations showing the "contagion" effect in action. View here:
To make our list, your company had to be, first and foremost, innovative. Your company needed an innovative product, technology, or process to even have been considered for our rundown.
SolarCity's new services include installation, financing, and consulting services for utility-scale solar and energy storage resource development, as well as advanced controls for demand response, distributed energy resources, and aggregated grid services.
Solar panel prices extend losses this week, as Chinese module makers leverage price competition intensively over the globe, especially in the US. Amid waning demand in China, some Chinese module maker is rush to increase the shipment volume in rest of the world, particularly in the US, in order to be the dominant module manufacturer. Since the demand in the US is widely expected to be promising in the coming five years, Chinese module makers has been aiming the US as one of the major target market to penetrate with their overseas capacities. Hence, solar panel price in the US has encountered great pressures, as Chinese module makers fuel strategic pricing intensively in the region. Meanwhile, in China, SEA and India, the regional prices are under pressured as Chinese module makers also intend to leverage price competition to capture more market shares.
Phys.org: Wind energy is to have a major share in the future renewable energy mix. The Germany-wide TremAc project is aimed at improving the planning, development, and acceptance of wind power plants and at developing objective criteria for their emissions. For this purpose, experts will study the interaction of acoustic and seismic vibrations of wind power plants and plan to generate a model to compute both emissions. TremAc is funded with EUR 1.85 million by the Federal Ministry for Economic Affairs and Energy. "We want to compute the complete chain of effects from the plant to the population," Theodoros Triantafyllidis, coordinator of the TremAc cooperation project and Head of the Institute of Soil Mechanics and Rock Mechanics of KIT, explains. Within the framework of the TremAc cooperation project, a single chain is to be developed for modeling all vibrating plant components and the surroundings, i.e. the rotating rotor blades, drive shaft, gondola suspension and tower structure, foundation, and the ground, various topographic terrains and airflows as well as adjacent residential buildings and workplaces.
Safety test provider Underwriters Laboratories (UL) is launching a shorter 50-day electrical insulation system test program for electric motors at the forthcoming CWIEME Berlin exhibition. This service responds to global demand from manufacturers for help getting products to market quicker without compromising on safety.
As the world braces for ever more stringent regulations aimed at curbing carbon emissions, a new winding techlogy promises to both increase motor efficiency and its power factor while using a surprisingly cost-effective method.
As the market for hybrid-electric and electric vehicles has grown, so too has the demand for ever-higher performing magnet wires. Suppliers, such as Superior Essex, are gearing up their R&D operations and launching new products tailored to this increasingly important customer base.
Tennessee Valley Authority (TVA), the largest public utility in the US, is installing ABB's static var compensator (SVC) technology to help ensure system reliability as fossil fuel component of total energy mix declines. SVC's enhance grid stabilization and at the same time enable a smarter grid.
NRDC & Partners Show How Innovative Green Banks and Bonds Can Provide Major Boost and Help India Achieve its Ambitious Renewable Energy and Climate Goals
After a couple of years of hiatus the chapter is under new enthusiastic leadership. Spearheaded by new Chapter Leader, Elizabeth Kaiga (Director, Renewable Energy at CohnReznick) the chapter has begun programming with the support of an all new chapter team.
The IREC 3iAwards honor innovation, ingenuity and inspiration from the nation's best in both renewable energy and energy efficiency.
With a compelling pipeline of market opportunities presently existing in the United States, the Company is finalizing multiple agreements in prime US markets with major waste plastics and waste tire suppliers to acquire the rights to install pyrolysis systems on their facilities, which allow for the waste plastics and tires to be converted into alternative, low emission fuels such as diesel, and syngas, on their facilities.
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