This number of households in the state of California have installed solar panels.
What is 1.5 million?
This person created the photovoltaic effect used in solar panels.
Charles Fritts
Something the sun gives off that the solar panels turn into energy.
Photons
Solar panels produce this current of power
DC
This is the percentage of energy gained from solar panels in the United States
3%
This is the year that the photovoltaic effect was invented
1883
This is how long it takes for the sun's rays to go from the sun to the earth
8 Minutes
This is the second most used power source after fossil fuels
Nuclear
This is how many homes installed solar this year
22 million
This is how much a solar cell cost in 2014
$0.40
This is the percentage of light that is blocked by the atmosphere
30%
This company sells the most solar panels in the US
NextEra Energy
This was the average cost of installing solar panels in the US this year
$15,000
This percentage is how much the price of solar panels dropped since 2010
75%
This is how the production of energy from solar panels is measured
Kilowatts hours
35%