Renewable Energy for the Data Center?

rohar asks: "The ISP/Carrier/Colo company I work for has just announced a new 'green' program. Although this is a step forward, they don't have a comprehensive environmental sustainability plan. I have been leading an open renewable energy project and I think we have 2 novel ideas for scalable and reliable renewable electrical power, the Solar Ammonia Absorption Convection Tower and the Compressed Air Wind Electrical Generation System. Do you have new ideas (Solar PV has been done, for example) for renewable power generation and conservation for the data center and other areas of industry?"