Sitting in his kitchen with a ballpoint pen and a small coiled notebook, Walter considers his expenses. With December looming around the corner, he laments the fact that his furnace, after all these years, has chosen to retire on the heels of winter. With his natural gas furnace no longer working, Walter has purchased two electric heaters to warm his home. These new additions leave him feeling unsure of how best to tackle his energy bills and this nervousness inspires him to