Geothermal Heat Pumps

1. A Proven Renewable Energy Technology Geothermal Heat Pumps

2. While Earth travels through Space…

3. …it Absorbs Energy from the Sun

4. This natural Energy Collection and Storage System captures nearly half of the Solar Energy falling on Earth… …thus maintaining a nearly Constant Temperature throughout the year just below the surface

5. Water is an incredibly efficient medium for transporting Thermal Energy

6. Geothermal Heat Pump Systems combine Sun, Earth and Water using proven technology… … to create “the most energy-efficient, environmentally clean, and cost-effective space-conditioning system” (according to U.S. EPA 1993)

7. Geothermal Heat Pump Basic Principles

8. The Earth is the Source of Heat in Winter… Outdoor air design temperature: 10°F in winter 72°F Insulating layer of earth 60°F A geothermal heat pump takes heat from the earth during winter and transfers it into the building

9. …and an Efficient Place to Reject Heat in Summer… Outdoor air design temperature: 100°F in summer 72°F Insulating layer of earth 60°F A geothermal heat pump cools the building in summer by rejecting heat into the earth

10. …using Heat Pump Technology A geothermal heat pump is connected to a sealedwater piping loop buried in the earth near the building Insulating layer of earth When the warm or cold water exiting the heat pump is pumped through the loop, it is naturally cooled or warmed by the earth surrounding it 60°F

11. Geothermal Heat Pump Efficiency One unit of energy from the grid Yields: 4-6 units of energy for the building Plus: 3-5 units of energy from the earth 400-600% Efficient

12. HEAT HEAT Heat Pumps Are All Around Us… Air conditioners and air-source heat pumps transfer heat from inside houses to the air outside. B B B Refrigerators transfer heat from food into the kitchen.

13. Residential Site Energy Conventional System Over 70% of the energy consumed by a typical home is used for heating, cooling, and water heating

14. Residential Site Energy Geothermal Heat Pump System Total site energy consumption is reduced by 50%

15. Geothermal Heat Pumps are the Most Efficient way to convert Green Energy into Heating, Cooling and Water Heating Making the most effective use of this precious resource

16. Geothermal Systems can be Classified as: Solar Geothermal Renewable Alternative Demand-Side Conservation Energy-Efficiency Zero-Ozone Depleting Environmentally Responsible

17. Geothermal Heat Pump Installation Methods

18. Vertical Closed-Loop A pair of pipes with a special U-bend assembly at the bottom is placed into bore holes from 150 to 400 feet deep

19. Horizontal Closed-Loop A piping array is installed in trenches cut 3 to 5 feet deep and hundreds of feet in length

20. Surface Water Closed-Loop A piping array is submerged in a pond or lake at least 8 feet deep Ground Water Open-Loop Well water from an underground aquifer is pumped through the geothermal heat pump and then returned to the aquifer or discharged to the surface

21. Vertical Closed-Loop Installation Drilling Pipe Loop Insertion Fusing Piping Loops Ready for Unit Installed Heat Pump

22. Geothermal Heat Pump Operation

23. Geothermal Heat Pumps Exchange Heat between Air and Water $5 $4 $1 Worth of Electricity to Operate the Compressor and Fan Moves $4 Worth of Heat from the Water Delivering $5 Worth of Heat into the Air Heating Mode Shown $1 Heat can be “pumped uphill” meaning delivered at a higher temperature than the source

24. Geothermal Heat PumpsHeat or Cool on Demand and also Produce Hot Water Operates on the Same Principle as a Refrigerator Cooling Mode Shown

25. Geothermal Heat Pump Advantages

26. Proven Technology • Millions of units installed world-wide in commercial and residential applications Most Energy-Efficient and Environmentally Friendly HVAC System Widely Available • Water is a better heat transfer medium than air • Heat exchange loops tap the renewable energy of the Earth Whole House Comfort • Heats or cools on demand • Better Comfort and humidity control • Easily adapted to zoned systems Produces “Free” Hot Water Uses EarthPure™ Refrigerant (ozone safe)

27. No Fossil Fuel • Improves safety • Eliminates service lines, flues, outside air intakes • No site emissions No Outdoor Units • Better aesthetics • No noise • No vandalism or theft concerns Long Equipment Life • Factory sealed systems • Indoor installation – no exposure to the elements • Moderate compressor loading vs. air-source systems Self Contained Compact Units • Hidden within attics or installed in closets • Upflow, horizontal, or downflow single-package units • Split system and water-to-water units available

28. Geothermal systems are at work in thousands of buildings throughout the world The Oklahoma State Capitol uses over 600 geothermal heat pumps

29. Our Planet Is Under Assault From Many Forces Our Planet is under Assault from many Forces

30. 43% of U.S. Carbon Emissions 39% of U.S. Primary Energy Consumption Industry 377 MMTC (25%) Buildings 658 MMTC (43%) Transportation 482 MMTC (32%) 71% of U.S. Electricity Global Pressures 53% of U.S. Natural Gas 1970-2020 (Exxon Mobile Projection) Buildings are the Major Contributor

31. There Are Many Solutions There are Many Solutions

32. Geothermal Heat Pumps are one of the Most Effective and Deployable and… … produce the lowest carbon dioxide emissions, including all source effects, of all available space-conditioning technologies(EPA, 1993)

33. Using a Single Geothermal Heat Pump is Equivalent to Planting an Acre of Trees

34. Using A Single Geothermal Heat Pump Is Equivalent to Taking Two Cars off the Road

35. Since their introduction in the 1980’s, nearly 1 million Geothermal Heat Pumps have been installed in the United States This is the equivalent to planting 1 million acres of trees, and of taking Two Million cars off the road