Need ASAP Renewable energy: The Wave of the Future

Which sentence from the article provides implied rather than stated evidence?

“A process that concentrates solar power uses mirrors to focus sunlight on fluid-filled solar receivers.”

“Turbines turn in the wind like windmills, but they are connected to generators that convert mechanical energy into electricity.”

“Each turbine has the potential of generating 100 kilowatts to several megawatts, depending on its size.”

“Dry steam power plants use steam from underground wells to turn turbines.”