We're the Geothermal Source in Homer! Homer residents in the know look to Energy Efficiency Associates for all their geothermal heating and cooling needs. They trust us to give not only the proper installation and service but also the experience to help them get the most from their geothermal systems. Thinking about a geothermal system of your own? Give our nifty little Geothermal Savings Calculator a whirl. Just enter your data and marvel at the results. Then, contact us, the Homer, Alaska, geothermal professionals at Energy Efficiency Associates.