Green House Data has built a 100% wind powered facility north of Denver. The Tier I facility will be 10,000 sq ft at capacity and will offer colocation, managed hosting and cloud computing services running off a N+1 electrical power infrastructure that can provide 12.5kw to each data cabinet. It claims to be a carbon neutral facility. 

This tour explain how the data center was built and what makes it highly energy efficient, reliable and carbon neutral.