This week Inhabitat also showcased an incredible spectrum of eco-efficient repurposed designs as we unveiled 23 finalists in our Spring Greening DIY Design Contest.

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Kuan-Shu favors this type of efficient, eco-friendly innovation.

FORBES: Magazine Article

Whether for everyday use as a primary power source, for use during periods of peak grid demand, or for backup use during emergencies, fuel cells offer an attractive, efficient and eco-friendly solution.

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Their vision: architect- designed, factory-built, single-family dwellings with green accents (including energy-efficient appliances and airtight construction) that appeal to higher- income, eco-conscious buyers.

FORBES: Magazine Article

The most efficient Cruze model, the Eco, uses a 138-horsepower, turbocharged, four-cylinder engine and a manual, six-speed transmission to achieve an EPA rating of 28 mpg city, 42 highway.

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The system also includes an eco-routing - providing the driver with an option to select the most energy efficient route.

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By converting a five-storey "tong lau" -- an old Chinese building -- with solar panels, a turfed roof and energy efficient appliances, Khan also is keen to emphasize that his eco-friendly flat is as much about preserving the old and a sense of heritage as it is about being green.

CNN: Can Hong Kong build bigger, higher, greener?