A potential difference exists between the atmosphere and the lithosphere. We know this, we learn it with our first thunderstorm. Lightning equalizes that difference, but I ask... why wait for lightning? A large enough conductive tower could harness the difference in potential... why, our skyscrapers could already be batteries waiting to happen! There's electricity in the atmosphere, and we can just let it flow on its course. The sun will regenerate the charges in the atmosphere, so it is a renewable resource! w00t! Good idea...
Spread, pass around, and implement. Share! SHARE! SHARE!