Candor Construction Group & Alternative Energy Associates Presents Geothermal Heating & Cooling

The Basic’s Of Geothermal - It’s What’s Underneath that Counts!

The earth is like a solar battery absorbing nearly half of the sun’s energy. The ground stays a relatively constant temperature through the seasons, providing a warm source in winter & a cool heat sink in summer. 4% absorbed by clouds. 17% reflected by clouds. 6% reflected by surface. 19% absorbed by water vapor, dust 46% absorbed by ground Space Atmosphere Earth 100% U.S. Dept. of Energy

It’s a Heat Source in Winter… Minus 40  F  in winter 70  F A Geothermal System cools the ground in winter & transfers the heat into the building…  F Insulating layer of earth

It’s A Cool Place to Dump Heat in Summer Plus 100  F in summer 70  F  F …and cools the building in summer by rejecting heat to the ground Insulating layer of earth

Air Temperature vs. Ground Temperature

Vapor / Compression Refrigeration Cycle

Geothermal Benefits Free and Renewable Energy Quiet operation Safe – all electric Increased Comfort Substantial Energy Savings Reliability & longer life expectancy Lower maintenance Less impact on the environment

Typical Home Energy Usage

With a Geothermal System

System Materials & Components Ground loop –Plastic pipe – high density polyethylene which is a higher grade than natural gas pipelines –Standard 50yr warranty on pipe from Manufacturer –Heat fusion method of joining pipe & fittings – very reliable method which makes one continuous pipe –Antifreeze heat transfer solution-Food grade –Small pumping station-low energy consumption and reliable components –200 year theoretical life expectancy of buried pipe

Which Type of Ground Loop? All loops are sized for the same results. –Each produces about the same annual operating costs. Choose the most economical loop to install

Which Type of Ground Loop? Closed loop - Vertical, horizontal, and pond –Contains gallons of fluid Open loop – Uses ground water from well –Requires water flow of approximately 1.5 – 2 gallons per minute per nominal ton –Average system uses 500,000 gallons of water/year

Surface Water/Pond Loops Least expensive Typically requires 1/4 acre pond at least feet deep

Single plate / 6 Ton unit4 – 8 Ton plates / 32 Tons

Horizontal Loop Configurations

Horizontal Loops Normally can be less expensive Typically requires foot of trench per ton Or feet of pipe per ton

Horizontal loop / fusion

Vertical loops Requires less area Typically 3-6 bores of feet deep per bore One bore per ton of required load Sealed with grout to prevent contamination of ground water

Vertical loop

Geothermal Equipment Options

Free and Renewable Energy 150 ft. 100 ft. 40 ft. Earth’s Unlimited Energy Source Energy Available: 300,000 Kwh 120Kwh demand

Geothermal Sources (training) (training)