On Mapdwellâ€™s satellite-map website, people can click on an individual roof to receive information about installation price, energy and financial savings, and environmental impact. Image courtesy of Mapdwell (edited by MIT News)
A common criticism of a total transition to wind, water and solar power is that the U.S. electrical grid can't affordably store enough standby electricity to keep the system stable. Stanford researcher Mark Z. Jacobson proposes an underground solution to that problem.
The semi-transparent perovskite solar cell absorbs UV, blue and yellow visible light. It allows red light and infrared radiation to pass through. Based on this principle, a double-layer â€œtandem solar cellâ€ can be built with an efficiency that is much higher than single-layer solar cells. (Image: Empa)
Scientists have discovered how to make the electrical wiring on top of solar cells nearly invisible to incoming light. The new design, which uses silicon nanopillars to hide the wires, could dramatically boost solar-cell efficiency.
Drexel University engineers have created a layered material of molybdenum and titanium by using a new process they invented to etch a MAX phase into a two-dimensional, layered MXene. Credit: Drexel University
A scanning electron microscope image shows the rigid pillar-like bristles of the FLUENCE rake, which is used to apply light-harvesting polymers to a solar cell. The distance between the pillars is 1 micrometer, about one-hundredth the diameter of a human hair. (Z. Bao et al, Nature Communications)