Riverfront Redevelopment, photo by Mario.Q.

Mario has a great Ottawa Street Power Station set (slideshow) in which he’s documenting this redevelopment project.

Wikipedia’s entry for the Ottawa Street Power Station says:

The Ottawa Street station provided electricity and steam to the downtown Lansing area from 1939 through the late 1980’s. By 1971, improvements at the Board of Water and Light’s Eckert Station permitted the Ottawa Street Station to operate as a backup station for electric generation. It continued to provide steam service into the 1980s. In 1984, this Board of Water and Light’s Eckert Station began providing steam service, initially as a backup to the Ottawa Street Station, but eventually as the primary steam service source. As equipment became obsolete, it was removed from the Ottawa Street Station, and ultimately it was decommissioned in 1992 for electric and steam.

…In 2007 it was sold to be redeveloped as corporate headquarters for the Accident Fund Insurance Company of America. Massive renovations to convert the plant to an office building are currently underway by The Christman Company, with completion of the entire 7-acre office campus scheduled for the first quarter of 2011.

Lansing City Pulse article about the Ottawa Power Station redevelopment and this great thread on the project from SkyscraperPage (complete with 3D renderings).