Case study – Department of Interior – Solar installation – National Park Service – Sleeping Bear Dunes National Lakeshore – Michigan
http://www.doi.gov/greening/energy/north-manitou-island.cfm
If you would like to read more about the Department of the Interior Federal Energy Saver program – and how the DOI is Greening our National Parks, click here:
http://www.doi.gov/greening/energy/efficiency.cfm
