Best known for its trophy walleye and northern pike, Little Bay de Noc is located at the northernmost part of Green Bay in the Upper Peninsula of Michigan. In 1936, local carpenter Walfred Lindberg built his first guest cabin on this 900-foot stretch of the Lake Michigan shoreline and started a small vacation resort called Lindberg’s Cabins. Fifty years later, his son John bought the 9-acre property from his father with its seven one- and two-bedroom cottages. He changed the name to Lindberg’s Cove Resort.
For the next 20 years, with heat from 1952 oil space heaters, Lindberg kept five guest cabins open year-round. But with the rising cost of heating oil, he began to look for ways to cut his energy costs. He was spending over $20,000 a year on utility costs alone. He started by making the cabins more energy-efficient and added insulation, new windows, and doors.