Jason Abbott, top, and James Congdon, both employees of Mechanical Energy Systems in Canton, install a series of rails that will be used to hold solar panels on the roof of Matt Grocoff's home on Ann Arbor's Old West Side on October 20th.

Lon Horwedel | AnnArbor.com

This week, a state-of-the-art solar panel system was installed on the roof of Matt Grocoff's historic home on Ann Arbor's Old West Side. The installation was a major step in the process to make Grocoff's home, according to his research, the oldest house in the United States to be "net zero," meaning it will produce more energy than it uses.

Grocoff is the founder of GreenovationTV, a site that chronicles his effort to make energy-efficient improvements to his home on South Seventh Street and inspire others to do the same. Read more about Grocoff's mission to become "net-zero" in this September AnnArbor.com article.