The outage occurred at 7:55 a.m. Wednesday when the power source quit to the universal power supply — a roomful of batteries that power a data center on Dayton Street. The data center is the largest at the university although it’s supplemented by dozens of smaller centers across campus.
Power returned to the data center just after 5 p.m., although information technology officials warned it could take some time to gradually restore website and email access across campus.
Via Email, website access lost all day at UW-Madison @ State Journal On Campus Blog.