Energy RetroFit Project
US Fish and Wildlife Service
Turnbull National Wildlife Refuge Cheney Washington
Presented By
HydroSci
Professionals In Radiant Heating & Plumbing
Greg Rehn
&
Travis Thompson
Project Owner
US Fish and Wildlife Service
Prime Contractor
Northern Management Service Inc.
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.

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.


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.

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.
 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.
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.

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.









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


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.
Solar Energy
World Solar Consumption.
Uranium
Gas
Oil
Coal
CTA Architects and Engineers
Andrew Beall
HydroSci
Greg Rehn
Travis Thompson

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.

HydroSci
Greg Rehn

Holiday Heating
Doc Holiday

Electric Smith
Brian Carney

Willamette Controls
Doug Miller