Wyandotte Geothermal

Overview of Wyandotte Municipal Services

Provides Electric, Water, Cable, Internet, & VOIP Phone Service s

Water Utility

Formed in 1889 Approx 10,000 customers

Electric Utility Formed in 1892 Approx 12,000 customers

Cable Utility Formed in 1981 Approx 8,500 customers

Overview on Geo-Exchange Technology

1946 First successful Ground Source Heat Pump installed in Portland, OR

Primarily open loop systems until 1979, now almost all are closed loop

As of 2004, an estimated 12 GW of thermal capacity installed world wide

Each year about 80,000 units are installed in the US

How Geo-Exchange Works

• During the winter, the fluid collects heat

from the earth and carries it through the

system and into the building.

• During the summer, the system reverses

itself to cool the building by pulling heat

from the building, carrying it through the

system and placing it in the ground.

• This process creates free hot water in the

summer and delivers substantial hot water

savings in the winter.

Why Does WMS Promote Geothermal

Energy Efficiency

Improves system load factor

Is a dispatchable renewable energy source

Lowers customers energy costs

Economic development

Energy Efficiency

The GSHP is one of the most efficient residential heating and cooling systems available today, with heating efficiencies 50 to 70% higher than other heating systems and cooling efficiencies 20 to 40% higher than available air conditioners. That directly translates into savings for you on your utility bills.

Source “International Ground Source Heat Pump Association”

Improves System Load Factor

Lowers Energy Costs

The average customer will save $580 dollars per year

After approximately 22 years they will “break even” and begin to save even more money

WMS will also be saving on power generation

Annual Cost to Heat and Cool vs. Size of Home

$0.00 $1,000.00 $2,000.00 $3,000.00 $4,000.00 $5,000.00

700890950

1,0001,0001,1001,1001,2001,2501,4001,5001,5001,6001,6501,7001,8001,8002,2002,2002,300

Annual Cost to Heat and Cool

Size of home (Sq FT)

Conventional

Geo

$0.00

$500.00

$1,000.00

$1,500.00

$2,000.00

$2,500.00

Conventional

Annual Cost to Heat/Cool in

dollars

Annual Gas Total

Annual Electric total

$0.00

$500.00

$1,000.00

$1,500.00

$2,000.00

Geothermal

Annual Cost to Heat/Cool in

dollars

Annual Geo CostsTotal

Geothermal vs. Conventional

Different Types of Energy

Lowers Customers Energy Costs

Current Incentives in Wyandotte

30% Federal Tax Credit

1.99% Unsecured Loans Available

WMS working on new incentive program

Also Offering Other Programs

Home Energy Audits

Suite of Other Rebates & Incentives under the Energy Smart Programs

What an Installation Looks Like

Drilling Experience

Urban Area

Average lot width varies 40 ft. to 70 ft.

Landscaped yards

Trees, sidewalks, driveways, curbs, porches, etc.

Artesian Wells

Rotten egg odors

Fractured Limestone

Current Status in Wyandotte

Over 60 Geothermal Units in Operation

25 new residential installations

19 retrofit residential installations

3 commercial installations

2 new multi-family developments (20 units)

3 Private home owners subscribed