Durante los días 27,28 y 29 de Marzo, el sistema solar “todo en uno” de Soterna se ha presentado en la feria ENERGYMED de Nápoles (Italia), mercado en el que Soterna ya cuenta con una relevante presencia. Esta es la sexta edición de este certamen, focalizado en las energías renovables y en la eficiencia energética.
Una vez más, este sistema solar, único en el mercado ha despertado el interés de los numerosos visitantes que se han acercado a solicitar información.
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Amid the prospect of cheap natural gas for electricity production, thanks to the major gas finds off Israel’s coast, demand for solar energy here has dulled. But this week, solar got a big boost as the Kibbutz Ketura solar park, jointly owned by Siemens AG and solar energy pioneer Arava Power, became the world’s first autonomously-cleaned solar energy production facility.
At Kibbutz Ketura, 100 Israeli-built robots clean off dusty PV panels nightly, increasing production by as much as 35%.
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mid the prospect of cheap natural gas for electricity production, thanks to the major gas finds off Israel’s coast, demand for solar energy here has dulled. But this week, solar got a big boost as the Kibbutz Ketura solar park, jointly owned by Siemens AG and solar energy pioneer Arava Power, became the world’s first autonomously-cleaned solar energy production facility.
A small startup based in Emeryville, California, will build a pilot-scale energy storage system that could provide a cheaper, more practical way of storing large amounts of electricity and help enable the power grid accommodate large amounts of renewable energy.
A new kind of battery invented by Jay Whitacre, a professor of materials science at Carnegie Mellon University and founder of the startup Aquion Energy, could make renewable electricity more practical and economical around the world. Aquion is about to start full-scale production of the batteries at a new factory in Mount Pleasant, Pennsylvania.
Currently seeking funding through Indiegogo, Rawlemon is an oddly beautiful eyeball-shaped lens, that uses refraction to concentrate sunlight with minimal need for tracking.
California’s ambitious goal of getting a third of its electricity from renewable energy sources by 2030 is being tested by its driest year on record, part of a multiyear drought that’s seriously straining water supplies. The state plan relies heavily on solar thermal technology, but this type of solar power also typically consumes huge quantities of water.
The drought is already forcing solar thermal power plant developers to use alternative cooling approaches to reduce water consumption. This will both raise costs and decrease electricity production, especially in the summer months when demand for electricity is high. Several research groups across the country are developing ways to reduce those costs and avoid reductions in power output.
A new approach to harvesting solar energy, developed by MIT researchers, could improve efficiency by using sunlight to heat a high-temperature material whose infrared radiation would then be collected by a conventional photovoltaic cell. This technique could also make it easier to store the energy for later use, the researchers say.
As rooftop solar panels become increasingly popular, utilities are growing concerned that they will put pressure on local grids, destabilizing power service and requiring costly equipment upgrades.
The rapid adoption of solar photovoltaics has already prompted changes in Germany and parts of Hawaii, California, and New Jersey. Because nearly 10 percent of Hawaiian Electric’s customers have rooftop solar, the utility now requires solar contractors and customers on the island of Oahu to get approval before installing a PV system. It’s also developing a model for sharing the cost of studying what upgrades may be required to add another rooftop solar system, says a spokesperson for the local utility.
A new solar cell material has properties that might lead to solar cells more than twice as efficient as the best on the market today. An article this week in the journal Nature describes the materials—a modified form of a class of compounds called perovskites, which have a particular crystalline structure.
The researchers haven’t yet demonstrated a high efficiency solar cell with the material. But their work adds to a growing body of evidence suggesting perovskite materials could change the face of solar power. Researchers are making new perovskites using combinations of elements and molecules not seen in nature; many researchers see the materials as the next great hope for making solar power cheap enough to compete with fossil fuels.
