Storing solar energy underground for a cloudy dayTue, 24 Nov 2015 11:21:38 EST
A common criticism of a total transition to wind, water and solar power is that the US electrical grid can't affordably store enough standby electricity to keep the system stable. Now a researcher proposes an underground solution to that problem. Tandem solar cells are simply betterMon, 23 Nov 2015 20:34:30 EST
Stacking two solar cells one over the other has advantages: Because the energy is 'harvested' in two stages, and overall the sunlight can be converted to electricity more efficiently. Researchers have come up with a procedure that makes it possible to produce thin film tandem solar cells in which a thin perovskite layer is used. The processing of perovskite takes place at just 50 degrees Celsius and such a process is potentially applicable for low cost roll-to-roll production in future. Increased potential for perovskites as a material for solar cellsTue, 17 Nov 2015 14:35:43 EST
Scientists have demonstrated a way to significantly increase the efficiency of perovskite solar cells by reducing the amount of energy lost to heat. High durability, efficiency of 1 cm2 size perovskite solar cellsFri, 13 Nov 2015 05:13:34 EST
A research group has improved the power conversion efficiency (PCE) of perovskite solar cells to over 16% while employing cells that were greater than 1 cm2. The high efficiency cells also passed the durability test (exposure to AM 1.5G 100 mW/cm2 sunlight for 1,000 hours), which is considered to be a basic criterion for practical use. These achievements were made by replacing the conventional organic materials with inorganic materials as the electron and hole extraction layers of the solar cells. Team of appraisers across six states find home buyers will pay premium for solar homesThu, 12 Nov 2015 12:36:58 EST
Photovoltaics added value to homes in six markets, according to a new report. They engaged a team of seven appraisers from across the six states to determine the value that solar photovoltaic systems added to single-family homes using the industry-standard paired-sales valuation technique, which compares recent sales of comparable homes to estimate the premium buyers would pay for PV.