Solar Assisted Ground Source Heat Pump System

1. Energy RetroFit Project US Fish and Wildlife Service Turnbull National Wildlife Refuge Cheney Washington Solar AssistedGround Source Heat Pump System

2. Presented By HydroSci Professionals In Radiant Heating & Plumbing Greg Rehn & Travis Thompson

3. Project Owner US Fish and Wildlife Service Prime Contractor Northern Management Service Inc. ENERGY RETROFIT PROJECT

4. U.S. Fish and Wildlife Service Project Objectives • To reduce energy consumption • To reduce utility bills • To reduce the carbon footprint of the facilities. • To construct a heat pump heating system coupled to solar thermal.

5. SolarAssistedGround Source Heat Pump • This heating system takes heat energy directly from the sun and introduces it to a heat pump. • This method provides greater efficiency based upon the principal that the warmer the source water the less electrical energy needed to provide space heating.

6. If the heat energy collected is in excess of the energy needed by the heat pump the heat is rejected into the ground. • A portion of this energy can be returned to the heat pump. • This system is designed so the heat pump is supplied with the highest available temperature, to maximize efficiency.

7. This system also reduces the heat load normally coming from the earth, allowing for: • Decreased runtimes • Smaller earth heat exchangers. • Greater thermal recovery of the earth heat exchanger.

8. The typical ground source heating system considerably reduces ground temperature over the course of the heating season. • This will cause a reduction of heat pump efficiency.

9. Solar Assisted Ground Source Heat Pump Electricity Solar Array Building Energy Heat Pump Ground Source

10. What is Solar Thermal?

11. Solar Thermal • Any system that uses a blower or circulator to move air or liquid through solar collectors, is classified as an active solar thermal system. • Nearly all liquid based active solar systems use either a flat plate collector, evacuated tube collector or a concentrating solar panel to harvest the suns energy.

12. Solar Thermal • Solar thermal is a method for harnessing solar energy for heat. • The sun's heat can be used in multiple ways in homes and businesses.

13. Uses for Solar Thermal Energy: • Domestic hot water production • Direct space heating • Solar Assisted Ground Source Heat Pump • Solar Assisted Air Source Heat Pump • Cooling by means of absorption chillers • Electrical generation by means of steam power • Refrigeration by means of ammonia-water absorption • Desalination through evaporative process

14. Facts that help us realize the potentialimpact of renewable energy, now and in the future: In one second the sun releases more energy than has been used by mankind since the beginning of recorded history. In one hour more sunlight falls on the earth than what is used by the entire population in one year.

15. Solar Energy World Solar Consumption. Uranium Gas Oil Coal Solar vs. Fuel Energy Comparisons

16. Global Solar Radiation

18. Work Pictures of Construction

27. CTA Architects and Engineers Andrew Beall HydroSci Greg Rehn Travis Thompson Design Team:

28. Project Representation • Jim Burby, PE Project Manager Division of Engineering US Fish and Wildlife Service • Dan Matiatos Refuge Manager Turnbull Wildlife Refuge • Larry Smith, LEED AP Project Manager Northern Management Service Inc. • Travis Thompson Onsite Superintendent Northern Management Service Inc.

29. Project Contractors • HydroSci Greg Rehn • Holiday Heating Doc Holiday • Electric Smith Brian Carney • Willamette Controls Doug Miller

30. Thank You For Your Time