The heat--combined with coaching softball--finally sucked up the last bit of energy I had last night. So no brilliant analysis today. Just a pointer towards a cool story on solar energy production in Australia. Enjoy.
Acting as a giant greenhouse, the solar collector will superheat the air with radiation from the sun. Hot air rises, naturally, and the tower will operate as a giant vacuum. As the air is sucked into the tower, it will produce wind to power an array of turbine generators clustered around the structure.
The result: enough clean, green electricity to power some 100,000 homes without producing a particle of pollution or a wisp of planet-warming gases.