ANN ARBOR ? Online Tech continues to expand across Michigan, announcing this week it will open a 34,000 square foot, $10 million data center in Westland, the fourth in Southeast Michigan. The company also operates two data centers in Ann Arbor and one in Flint.

Online Tech is renovating and building out a network switching center formerly occupied by Sprint-Nextel. It will create 15 jobs.

According to Online Tech?s Web site, the new data center features three 500-kilowatt diesel generators, three 2,000-gallon diesel storage tanks, a 2,500-kVA transformer utility feed, UPS battery backup systems, redundant ISPs with 10-gigabit-per-second data capacity on demand, sophisticated fire suppression and sprinkler systems, biometric two-stage access control, around-the-clock site surveillance, 400 tons of cooling capacity, and a separate secured room with no customer access for power equipment, network infrastructure and network operations equipment.

Carlson, a national data center design and construction firm based in Irvine, Calif., has been contracted to manage the build out of Online Tech?s new Metro Detroit data center. Construction will include a complete upgrade of the building?s power, cooling systems, and front office space. The new data center is expected to be complete and ready for occupancy in the second quarter of 2014.