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Current issue

ELEKTRO 10/2017 was released on October 10th 2017. Its digital version will be available on October 10th 2017.

Topic: Electrical power engineering; RES; Fuel cells; Batteries and accumulators

Main Article
Electricity storage
Electrochemical impedance spectroscopy of batteries

SVĚTLO (Light) 5/2017 was released on September 18th 2017. Its digital version will be available on September 18th 2017.

Luminaires and luminous apparatuses
MAYBE STYLE introducing LED design luminaires of German producer Lightnet
TREVOS – new luminaires for industry and offices
How many types of LED panels produces MODUS?
Intelligent LED luminaire RENO PROFI

Interiors lighting
The light in indoor flat interior – questions and answers

Shining more light on solar panels

23.10.2015 | Phys.org | www.phys.org

Solar panels are the beacon of renewable energy, yet they are not getting as much light as they could be. Joshua Pearce from Michigan Technological University and a team from Queen's University in Canada have found a way to get more sun to shine on the panels and crank up the output by 30 percent or more.

The research focused on the system rather than individual panels mostly because the current set up for ground-mounted solar panel arrays is "wasting space." The iconic flat-faced solar panels installed in large-scale utility solar farms are spaced apart to prevent shading. As the sun shines on a photovoltaic system, sending electricity into the grid, a fair amount of that potential energy is lost as the light hits the ground between rows of panels. The solution is simple: Fill the space with a reflector to bounce sunlight back onto the panels.

More effective solar panels

Because of the uncertainty with potential hot spots, using reflectors currently voids warranties for solar farm operators. For their solar panel work, Pearce's team created a bi-directional reflectance function model that could predict how much sunlight would bounce off a reflector and where it would shine on the array.

Read more at Phys.org

Image Credit: Wikipedia

-jk-