Yesterday we discovered with puzzlement as a German neighborhood in the city of Freiburg produces four times more energy than it produces. And that has a city where they have 1800 hours of sunshine a year, nearly half some of the indexes you have some Spanish cities, so we can quickly show how badly we are doing in this regard in our country.
Something that has to do much with this one is that Google’s new project launched this week and has referred to as “Project Sunroof”. This will calculate the potential of housing for the possible implementation of solar panels. Say that calculates the hours of sunshine a year it receives the roof, for example, your home, so give an estimate of how much money ahorrariais.
Those who live in Boston, the San Francisco Bay and Fresno, have been invited to enter your address on the landing page for Project Sunroof which is the availability of hours of sunshine per year and how much money you would save if they were installed solar panels.
Google says that calculates this information with a database of aerial maps that get perform 3D modeling of the roof. Taking into account the shadows cast by the trees or nearby structures, and then calculates all possible positions of the sun over a whole year. It also includes the history of cloud patterns and temperatures that affect the production of solar energy.
Once all this is calculated, the amount of money you would save if you make leasing of solar panels for 20 years, using a loan to purchase or buy directly appears. Another advantage is that you can even change the amount of roof cover with solar panels if anything the user does not want to cover whole.
In a given example, a house with a rate of 1800 hours of sunlight per year would save $ 24,000 in 20 years including payment of solar panels. Now we just have to take account if you were in a province like Huelva which nearly doubles the number of hours of sunlight per year.