DuPont Fabros raised the lower end of its full-year earnings per share (EPS) guidance for 2012, despite a steep year-over-year drop in EPS the wholesale data center provider saw in the second quarter.

DuPont’s EPS guidance for full 2012 is now between US$1.47 and $1.54, up from the $1.44-$1.54 range expected previously.

The company reported earnings of US$0.11 per share on $82.7 in revenue for the quarter. Revenue was up 17%, while earnings per share (EPS) slid down about 45% year over year.

DuPont attributed the drop in EPS to lower capitalized interest and higher preferred dividends. Revenue was up primarily because of new leases commencing at its non-stabilized properties, or properties that are either less than 85% occupied or have been in service for less than two years.

Hossein Fateh, the company’s president and CEO, said DuPont was pleased with its 2012 performance so far. “We remain focused on the lease-up of our available inventory and continue to see good demand for our wholesale locations,” he said.

The company’s most recent construction project is the second phase of its ACC6 data center in Ashburn, Virginia. The company is planning to complete this phase – already 67% pre-leased – by the end of the year.

The wholesaler signed three leases and one pre-lease during the second quarter. The deals totaled nearly 20MW of capacity and 100,000 sq ft of raised floor, with an average leas term lasting about 14 years.

In two of the leases customers took space at ACC6 and in one of them, a company took space at the provider’s Santa Clara, California, data center called SC1. The pre-lease involved the second phase of ACC6.

So far this year, DuPont signed seven leases totaling more than 24MW of capacity and commenced ten leases totaling about 26MW.