New technique for growing high-efficiency perovskite solar cellsThu, 29 Jan 2015 15:16:19 EST
Researchers have revealed a new solution-based hot-casting technique that allows growth of highly efficient and reproducible solar cells from large-area perovskite crystals. The researchers fabricated planar solar cells from pervoskite materials with large crystalline grains that had efficiencies approaching 18%. Solar chip monitors windowsThu, 29 Jan 2015 09:42:10 EST
A new kind of radio chip is intended to warn when windows are left open. This way, you can avoid having the heat go out the window on cold days. The sensor also detects break-in attempts early on. The key: This maintenance-free chip powers up with energy supplied by solar power. Demystifying nanocrystal solar cellsWed, 28 Jan 2015 12:54:16 EST
Researchers have developed a comprehensive model to explain how electrons flow inside new types of solar cells made of tiny crystals. The model allows for a better understanding of such cells and may help to increase their efficiency. Economic trade-offs of owning versus leasing a solar photovoltaic systemTue, 27 Jan 2015 11:10:29 EST
Two new reports examine the economic options customers face when deciding how to finance commercial or residential solar energy systems. Analysts found that businesses that use low-cost financing to purchase a photovoltaic (PV) system and homeowners who use solar-specific loans can save up to 30 percent compared with consumers who lease a PV system through a conventional third-party owner. Carbon nanoballs can greatly contribute to sustainable energy supplyTue, 27 Jan 2015 10:01:53 EST
Researchers have discovered that the insulation plastic used in high-voltage cables can withstand a 26 per cent higher voltage if nanometer-sized carbon balls are added. This could result in enormous efficiency gains in the power grids of the future, which are needed to achieve a sustainable energy system. The renewable energy sources of tomorrow will often be found far away from the end user. Wind turbines, for example, are most effective when placed out at sea. Solar energy will have the greatest impact on the European energy system if focus is on transport of solar power from North Africa and Southern Europe to Northern Europe.