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Current issue

ELEKTRO 5/2019 was released on May 15th 2019. Its digital version will be available imediately.

Topic: Lightning and overvoltage protection; Fire and safety technologies

Main Article
Verification of material coefficient defined in the standard STN EN 62305-3
Smart Cities (final part 10)

SVĚTLO (Light) 2/2019 was released on March 15th 2019. Its digital version will be available immediately.

Architectural and scenic lighting
The architectural lighting of Bečov nad Teplou castle
Lighting design in a nutshell – Part 41
The analyse of light picture a little more theoretic

Day light
Biggest mistakes in day lighting design of buildings

How Much Room Do We Need To Supply The Entire World With Solar Electricity?

22.04.2015 | IFL Science | www.iflscience.com

In 2009, the total global electricity consumption was 20,279,640 GWh. The sun creates more energy than that in one hour. The tricky part is collecting that energy and converting it into useful electricity with solar panels. 

How much area would need to be covered with solar panels in order to capture enough energy to meet global demand? Actually, it’s not as much as you’d think.

The image above has three red boxes showing what area would need to be covered for Germany (De), Europe (EU-25), and the entire world.

Original article on IFL Science 
Photo credit: Nadine May / IFL Science