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Current issue

ELEKTRO 7/2017 was released on June 26th 2017. Its digital version will be available on July 28th 2017.

Topic: Cables, conductors and cable technique; Connectors; Software; Marking and labelling

Main Article
Electrical insulation and thermal conductivity

SVĚTLO (Light) 3/2017 was released on June 9th 2017. Its digital version will be available on July 10th 2017.

Lightning sources
Terminology of LED lighting sources 

Daylight
The day lighting of big living rooms
Light technology assessment of linear structure

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