Make a difference while making a profit! Many of you on this part of the forum have the equipment and skills to add a new service to your business while also helping to conserve energy and the environment. Geothermal ground loops can be installed using track excavators and loaders, and are an excellent system to save up to 60% on heating and air conditioning bills. More information can be found at the Geothermal Heat Pump Consortium - www.geoexchange.us. Some ground loops are installed vertically with well drilling equipment, while others can be installed in a horizontal configuration which is more cost effective and therefore frequently the preferred installation. Obviously, many here on this forum can be involved and profit in this endeavor with equipment that they already own. A search for geothermal contractors or engineers in your area will probably turn up a nice source of work for yourselves. There are already over one million geoexchange systems installed in the United States, so this is no longer a fringe technology. There is not a single person I know who wouldn't want to save 60% on their heating and air conditioning bills. Geothermal energy is both energy efficient and environmentally friendly and will become more and more popular as traditional fuel prices maintain their upward trend. Many states already have generous rebates, some as high as $600 per ton, for new geothermal systems. Below is a photo of a ground loop we recently installed in New Jersey. This system is 7 tons and required 3600 feet of piping in the ground. It can provide heating, air conditioning, and hot water at significant savings of approximately 60%. The trenches were seven to eight feet deep and about 42" wide. A hydraulic screener was used to sift away the stones to keep them off of the ground loop without needing to buy any sand. Note the smooth trench bottom despite the rock vein in the middle of the photo. The HDPE piping will last for over 100 years, so a little extra precaution is well worth the effort. Geothermal - A smart investment that is good for the country and great for the environment!