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Current issue

ELEKTRO 1/2017 was released on January 18th 2017. Its digital version will be available on February 17th 2017.

 

Topic: Electrotechnology; Materials for electrical engineering; Equipment and accessories; Marking

 

Main Article

Data analysis of photovoltaic system during an eclipse

Risk of wiring of biometric identification systems

SVĚTLO (Light) 6/2016 was released on December 5th 2016. Its digital version will be available on January 5th 2017.

Interiors lighting
Colloquium Interiors 2016 – the fifth anniversary
Cooperation of indoor interior and lighting 

Standards, regulations and recommendations
New standards for road lighting

Google Introduces Project Sunroof

19.08.2015 | IEEE Spectrum | www.spectrum.ieee.org

Does it make sense to install solar panels on your roof? You probably have no idea. But as of today, Google knows. It has launched a new tool called Project Sunroof.

It will use data you may not have realized that Google even had to tell you how much money you can save by turning your roof into a photon harvester. Google calculates the amount saved by taking into account typical utility rates, relevant federal and state tax credits, utility rebates, and whatever renewable energy credits might be available in your area. Meanwhile, the power that the panels can theoretically produce is modified by what Google knows about local weather patterns on a day-to-day basis.

Google's Project Sunroof

Google’s calculator will keep you off your rooftop because it has done most of the hard work for you. You need to know nothing besides your address and the amount of your typical monthly electric bill. Most significantly, Google is able to estimate not only the size of your roof, but also its orientation and slope and whether trees or other buildings may block the sun at certain times during the day.

This tool is certainly valuable for anyone thinking about a solar panel installation, and for anyone who wants to know whether he or she should be thinking about it. It’s a potentially valuable tool for Google as well, since those suggestions for companies to install solar panels for you are sponsored by the companies themselves.

Read more at IEEE Spectrum

Image Credit: Google

-jk-