How Many Solar Panels To Charge The World

The typical homeowner will need 28 34 solar panels to cover 100 of their energy usage dependent on location and roof size.

How many solar panels to charge the world.

In 2009 the land art generator initiative sponsored a study to determine just how many solar panels would be needed to supply the world energy demand in 2030. 5 hours x 290 watts an example wattage of a premium solar panel 1 450 watts hours or roughly 1 5 kilowatt hours kwh. Assuming this power rating we would need to divide 2 75 tw by 350w which gives us the gigantic number of 7 85 billion 7 857 142 857 to be precise panels required. To get these numbers we used high and low panel production ratios to calculate how many solar panels are needed on average.

How do we arrive at this number. How much energy does a solar panel produce. To put this into perspective this is about 10 000 times more than what humans need. Anything past that number would just go towards your household appliances cooling or whatever else.

A better approach is to look at real world data captured from real world solar arrays and just extrapolate from there. We receive a staggering 1 74 10 17 watts of energy from it. One solar panel produces about 1 24 kwh per day. Here we are supposing a panel size of 350w for the calculated size of 18tw of solar plants.

According to a graduate thesis by technical university of braunschweig student nadine may the number of solar panels needed to supply the entire world s energy needs would fill just 25 000 square. In the example above you would need 24 solar panels to account for 80 of your average consumption 29 6 kwh daily usage divided by 1 24 kwh per panel. A total of 51 42 billion solar panels would be needed to power the entire world on solar energy. The current standard size of panels used in a large sized solar plant is easily over 350w.

To get this level of solar panel output from your installation you ll need about eight 250w solar panels to generate enough juice to power your electric car every day. Thus the output for each solar panel in your array would.