There are many new technologies being developed to create cheaper, more efficient solar panels – however researchers at the National Renewable Energy Laboratory just announced that they have found a way to create more efficient photovoltaic cells using 50% less energy. The technique hinges upon a new optical furnace that uses intense light instead of a conventional furnace to heat silicon to make solar cells. The new furnace utilizes “highly reflective and heat-resistant ceramics to ensure that the light is absorbed only by a silicon wafer, not by the walls inside the furnace.”
More than 500,000 SHS systems have been installed cumulatively as of year-end 2010, according to Grameen Shakti. The SHS home energy package includes one or more solar photovoltaic (PV) panels, batteries, a power regulator, and a set of compact fluorescent lamps (CFL) and LED lights.
The Düsseldorf International Airport is about to flip the switch on one of the largest solar arrays in Germany. The 8,400 panel, 2 megawatt solar array spans the space of six soccer fields, and it was finished in time to start feeding power to the grid before the clock strikes 2012. To prove the solar array’s everyday worth, the airport has installed a real time statistics ticker in the airport lobby so passengers can see how much energy it is creating and how much carbon dioxide is being diverted from the atmosphere.
The German Solar Industry Association (BSW) has announced that German solar power producers have increased electricity output this year by 60 percent over 2010 to 18 billion kWh. This is more than three percent of total power output volumes.
BSW’s managing director Carsten Koernig stated that “solar energy has become an indispensable ingredient of a successful energy strategy shift”. The solar sector has already produced enough electricity to power approximately 5.1 million households. This accounts for about one-eighth of all households in Germany.
Drafted by the DOE Office of Policy and International Affairs, the “2011 Critical Materials Strategy” report examines the role of rare earth metals and other materials in the clean energy economy,” raw materials critical to the manufacturing of a wide range of clean technologies, including wind turbines, electric vehicles (EVs), thin-film solar photovoltaic (PV) cells and energy-efficient lighting.
Disasters and accidents might happen anywhere in the world, as they could neither be predicted nor avoided. Though we cannot escape from such natural disasters, we may survive with the help of some emergency gadgets that rely on clean sources of energy so you don’t have to worry about gadgets that don’t have any juice when you need them the most.
A project that involved 1.8 megawatts (MW) of solar power, 500 geothermal wells, and fuel cells could potentially reduce energy consumption at a Cornell University campus by 75%. The campus has the name “NYC Tech Campus” and is a project of Distributed Sun.
I posted just now on a significant solar project at Palau International Airport, but it was just one of many featured in Cleantechnica’s latest weekly roundup of big solar news. From 200MW in Rajastan to 60MW projects in France and Germany, the future of solar is looking decidedly global if this week’s list is anything to go by. Given all the doom-and-gloom over solar that was spouted in the last few months of 2011, it’s good to see that capacity keeps building and interest keeps building. No wonder Warren Buffet is buying up large solar farms and Google continues its solar surge.
From taking high-polluting nations to task for climate change to setting up a Mongolia-sized sanctuary for marine mammals, the tiny island nation of Palau, located roughly 500 miles east of the Philippines, has long been punching above its weight when it comes to environmental issues.
It’s latest venture is sending a clear message to the world—working with solar panel manufacturer Kyocera, Palau International Airport has just installed the nation’s largest solar array. Sure, its size (226.8kW) is not huge compared to the multi-hundred megawatt solar projects we see appearing around the world with increasing frequency, but it is still an important step forward.