The cloud, where you upload photos and stream video, is actually real, physical infrastructure housed in data centers across the country, like Green House Data's server farm in Cheyenne, Wyoming.
"This is the cloud," said Art Salazar, the company's director of operations, waving at rows and rows of glass and metal cabinets. "You're standing right in front of the cloud."
Feeding those hungry computers are big, black power lines, snaking along the ceiling. Like most data centers, electricity is the company's biggest expense, which is why Green House Data is obsessed with energy efficiency – and why companies want to get green power right at the source.