Here's the right idea in Colorado no less

The next small thing: How sustainable neighborhoods could reshape cities | Grist: "Bennett is among a group of urban thinkers who envision neighborhoods powered by their own micro-solar or geothermal power grids. They imagine city blocks that operate as single, interconnected systems, saving gobs of energy and resources in the process, and small manufacturing districts where companies make use of each other's waste streams. Planning geeks call them "eco-districts," and say they'll be the next big (or not-so-big) thing in sustainability.

The project in Denver is the brainchild of Living City Block, a nonprofit that adopted two square blocks in Lower Downtown (known by locals as LoDo). Architect Paul Todd says that 20 years ago, the place was a wasteland of boarded up, Victorian-era warehouses. He and his wife (and architectural partner), Kirstin Todd, bought a building in 1991 that was slated for demolition. "We removed the entire second floor and most of the roof," he says. "We completely rebuilt it from the ground up.""

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Charles Sanders Peirce - Thinking in Threes