Residential - Bosch Geothermal Case Study
Americans are constantly struggling when it comes to paying outrageously high monthly utility bills and are beginning to look for energy efficient solutions to reduce energy costs. With the high prices of traditional fuels that today’s home buyers face, there is a growing need for a cost effective and energy efficient solution to lowering utilities bills in households throughout America. According to the US Department of Energy, 21 percent of the United States total energy consumption will take place at home with space heating and cooling expected to see the largest gains over the next 40 years. The Earth’s total energy consumption is expected to double by 2050, and the need for a cost affordable home is now more critical than ever.
The answer is right under our feet. Geothermal energy, the utilization of the constant temperature beneath the Earth’s surface, is now the homeowner’s solution to the sustained high energy costs of heating and cooling. With the current cost of energy, plus the toll on the environment that consumption can take, countless homes are being outfitted or retrofitted with these energy efficient, long-lasting solutions and breaking away from the inefficient HVAC forefathers. For homeowners like Tom Trapp, the answer was simple. “The existing heat pump system in my home, although only five years old, was beginning to experience problems. It appeared that we were going to have to invest additional money into a poorly manufactured system that seemed to me to be an energy hog. I was very impressed by what I had read about geothermal systems, especially regarding their energy efficiency ratings. What finally convinced me were the efficiency ratings of geothermal compared to a typical heat pump system. Given the quality of the unit and the EER rating, we would receive a payback through lower electric costs, that would essentially wipe out the cost difference between a heat pump system and geothermal. Once I knew that, I called my installer and set up an appointment to install a FHP/Bosch geothermal heat pump system.”
With their high-efficiency geothermal heat pumps, a strong dealer network through the United States and a commitment to producing high quality trusted products, Bosch Thermotechnology is taking the lead in establishing geothermal as the answer to America’s energy cost problem.
Benefits and Conclusion
What if it was possible to retrofit an existing traditional home, and turn it into a home that has virtually no energy bill? In Tennessee, with the help of a FHP/Bosch geothermal heat pump, photovoltaic solar panels, and installers Select Air Geothermal, Tom Trapp turned his own home and his guest house into energy efficient, comfortable spaces for him, his family and his guests.
When Tom first noticed that his current system was creating wide temperature swings, was highly inefficient and could potentially become a costly repair job, he set out to educate himself in order to create a worry-free and energy efficient solution. After attending a seminar on sustainable homes, Tom knew that geothermal was the way to go in order to create a long-lasting system design, maintain energy efficiency and use green state-of-the-art technology to do it all.
Once installed, Mr. Trapp and his family enjoyed the benefits of their first geothermal heat pump in the main house so much that Tom outfitted his guest house with an additional unit. Now their guests can experience the comfort that the Trapp’s have grown to love. “From start to finish, our experience has exceeded our expectations every step of the way. I’m always telling folks about how well it works and how happy I am with the system. When people come to our home, they’re typically very interested in hearing about it and I’m always happy to show them the unit and explain how it works.”
Furthermore the Trapp’s discovered additional benefits. They found that they could set the thermostat higher in the summer due to the reduced humidity levels. Plus, when the FHP/Bosch geothermal system does come on, it stays on for a much shorter period of time than their old system. Finally, the most pleasant surprise for the Trapp’s was finding out that virtually all of their hot water would be generated for free as a byproduct of the geothermal system, which saves them another $400 a year!
Through the use of photovoltaic solar panels and a Bosch geothermal heat pump, Tom’s home actually creates more electricity than it uses, in effect becoming a net zero home with virtually no energy bill!
Technical Specs of the Home
Geothermal Heat Pump unit 1:
- FHP Aquarius II - AP061 ground source/air, vertical
- COP: 1st stage: 5.1; 2nd stage: 4.9
- EER: 1st stage: 32.9; 2nd stage: 23.7
Geothermal Heat Pump unit 2:
- FHP Aquarius II - AP035 ground source/air, split
- COP: 1st stage: 5.2; 2nd stage: 4.6
- EER: 1st stage: 33.9' 2nd stage: 23.4
- Energy Consumption with Bosch: 35% less than previous system*
- Monthly Savings: $60*
- Energy Savings: Up to 70% savings over traditional
- Life Cycle Cost: 25 - 50% less than a conventional system
- Payback Period: 9 years*
*Figures are homeowner estimates and are subject to fluctuation
Outcome of the Geothermal Heat Pump in the HomeBetween the energy savings, high efficiency ratings, quiet operation, and ease of installation the Trapp family couldn’t be happier. “I look back on my choice to go with geothermal as one of the smartest decisions I’ve ever made. Thank you Bosch for producing such a wonderful, high-quality, energy efficient product.” - Tom Trapp