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Geo Thermal Clean Show Loop
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How Can Free Energy Help Your Business Today?
Geothermal Heat Pumps
A Proven Renewable Energy Technology
While Earth travels through Space…
…it Absorbs Energy from the Sun
This natural Energy Collection and Storage System captures nearly 50% of the Solar Energy falling on
our Planet…
…thus maintaining a nearly constant temperature just below the surface year-round
US Deep Ground Temperatures
… to create “the most energy-efficient, environmentally clean, and cost-effective
space-conditioning system”(according to U.S. EPA 1993)
Geothermal Heat Pump Systems capture the Solar Energy stored in the Earth
using proven technology…
Geothermal Heat PumpBasic Principles
The Earth is the Source of Heat in Winter…
Outdoor air design temperature:0°F in winter
72°F
55°F
Insulating layer of earth
A geothermal heat pump takes heat from the earth during winter and transfers it into the building
…and an Efficient Place to Reject Heat in Summer…
Outdoor air design temperature:100°F in summer
74°F
55°F
Insulating layer of earth
A geothermal heat pump cools the building in summer by rejecting heat into the earth
A geothermal heat pump is connected to a sealed water piping loop buried in the earth near the building
When water exiting the heat pump is pumped through the ground loop, it is naturally warmed (or cooled) by the earth surrounding it
Insulating layer of earth
…using Heat Pump Technology
Geothermal Heat Pump Efficiency
1 unit of energy from the grid
Plus:3-5 units of energy
from the earth
Yields:4-6 units of energy
for the building
400-600% Efficient
Geothermal Heat Pumps Exchange Heat between Air and Water
Air In70 F
Air Out100 F
WaterOut40 F
WaterIn
45 F
Compressor
Fan
WaterCoil
Air Coil
Revers ingValve
Expans ionValve
Pump
$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
Heat can be “pumped uphill”meaning delivered at a highertemperature than the source
$4$4
$1$1
$5$5
Geothermal Heat PumpsHeat or Cool on Demand and also
Produce Hot Water
Air In80 F
Air Out58 F
WaterOut85 F
WaterIn
75 F
Compressor
Fan
WaterCoil
Air Coil
Revers ingValve
Expans ionValve
HWIn
90 F
HWOut
120 F
Operates on the Same Principle as a Refrigerator
Cooling Mode Shown
160F
Hot water is produced whenever the unit is operating
Heat Pumps Are All Around Us…Air conditioners and air-source heat pumps transfer heat from inside houses to the air outside
Refrigerators transfer heat from food into the kitchen
HEAT
BB
B
HEAT
Geothermal Heat Pumps
Self-containedheating, cooling and hot water
Residential Site EnergyConventional System
Over 70% of the energy consumed by a typical home is used for heating, cooling, and water heating
Residential Site EnergyGeothermal Heat Pump System
Total site energy consumption is cut in half
Geothermal Heat Pumpsare the Most Efficient way to convert Green Energy
into Heating, Cooling and Water Heating
Making the most effective use of this precious resource
Geothermal Systems can be Classified as:
SolarGeothermalRenewableAlternative
Demand-SideConservation
Energy-EfficiencyZero-Ozone Depleting
Environmentally Responsible
Geothermal Heat PumpInstallation Methods
Vertical Closed-LoopA pair of pipes with a special U-bend assembly at the bottom is placed into bore holes from 100 to 400 feet deep
Horizontal Closed-Loop A piping array is installed in trenches cut 3 to 5 feet deep and hundreds of feet in length
Surface Water Closed-LoopA piping array is submerged in a pond or lake at least 8 feet deep
Ground WaterOpen-LoopWell water from an underground aquifer is pumped through the geothermal heat pump and then returned to the aquifer or discharged to the surface
Vertical Closed-Loop Installation
DrillingPipe LoopInsertion
Heat Fusing
InsideConnection
Geothermal Heat PumpsAre a Scalable Technology
Geothermal Heat Pumps
1300 Square Foot Habitat for Humanity Home
Are widely used in Homes and Commercial Properties
Geothermal Heat Pumps
Currently Used in Commercial Buildings
The Government Perspective
Why Geothermal?
•Energy Security
•Electric Grid Restructuring
•Clean Air & Water
•Climate Change
•Economic Competitiveness
Industry377 MMTC
(25%)
Transportation482 MMTC
(32%)
Buildings658 MMTC(43%)
43% of U.S. Carbon Emissions 39% of U.S. Primary Energy Consumption
71% of U.S. Electricity
Global Pressures
53% of U.S. Natural Gas
1970-2020 (Exxon Mobile Projection)
Importance of Buildings Sector
The Electric Utility Perspective
Garrett Office Building StudyEdmond, Oklahoma
Conventional Variable Air Volume (VAV) Building15,000 Sq. Ft.
Geothermal Building20,000 Sq. Ft.
Garrett Office BuildingsAnnual Energy and HVAC Maintenance Costs 2006-2007
55% Operational Cost Savings55% Operational Cost Savings
Garrett Office BuildingsAnnual Energy Use 2006-2007
47% Site Energy Savings47% Site Energy Savings
Garrett Office BuildingsAnnual CO2 Emissions 2006-2007
28% Carbon Emissions Reduction28% Carbon Emissions Reduction
LEED Buildings:Leadership in Energy and Environmental Design
The LEED green building rating systemis the national benchmark for high performance green buildings from theU.S. Green Building Council (USGBC)
Geothermal systems can provide many of the required points to achieve LEED certification
The payback on Geothermal Systemsis many times faster
than solar PV
Geothermal Heat Pumpsare one of the Most Effective
and Deployable…
… producing the lowest carbon dioxide emissions, including all source effects, of all available space-conditioning technologies
(EPA, 1993)
Our Planet Is Under AssaultFrom Many Forces
Our Planet is under Assault
from many Forces
There Are Many Solutions
There are Many Solutions
Using a Single Geothermal Heat Pump
is Equivalent to Planting an Acre of Trees
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 Millioncars off the road
Geothermal Heat Pump Market Perspective
Geothermal Heat PumpCurrent Incentives
• 12 States have Existing Incentives– Many are very new– Sales tax, property tax, income tax, grants and rebates
• 46 States have other types of Incentives– Legislative, regulatory, or utility
• Federal Incentives– Business and consumer tax credit bills introduced
• 30% of total system homeowner credit - $2000 cap• 10% of total system business credit – no cap• HR 2990 has over 30 cosponsors at present• S. 2314 has 4 cosponsors at present
– Various initiatives that support GHPs in new energy bill
QUESTIONS?