I've suddenly became aware. EVERY way we get power is derived from the sun. Every way except for nuclear power plants. Check it out Hydro electric dams - Powered by the sun because the sun pulls water up from the ground and it falls down on mountains and places of higher elevation where we extract energy from water falling down in mass quantities. Wind Mills - Powered by the sun because the sun heats up air. As air heats up, it rises and cooler air goes down, creating convection currents. We use these currents to spin the wind mills. Coal/Oil - Sun powers plant photosynthesis. Animals eat plants. Over time the layers get squished under new beasts. The pressure over a lot of time squishes all the layers together, rendering the layers of animals and plants, more volatile and energy-packed. Turning them into fossile-fuels. Solar Cells - Sun goes on it. Makes... current What else is there... Well anyway, I think this insight can be an indicator for us. Energy has always come from the sun in some way. The sun will continue to be the primary source of energy on Earth for its civilizations. I believe we should focus more on ways to harness its power. If we did that, we'd have more electricity than we'd ever need. Ever.