Fitting GeoExchange Heating and Coolingto Your Building

Denis TanguayPresident & CEOCanadian GeoExchange Coalition

High-Rise Power: Is renewable energy a good fit for your building?TowerWise Seminar – The Old Mill Inn, Toronto, February 4, 2010

Presentation Outline

1. Who is the CGC?

2. Market characteristics – Canada and Ontario

3. Case studies (3)

4. Example of commercial system cost breakdown

5. Some advice

About 300 members from across Canada and the US:

Equipment Manufacturers and Distributors System Designers (Architects & Engineers) System Installers Energy Distribution Companies (electric and natural gas) Financial, legal, other industry support services Research centers, academic institutions Building owners & managers, Developers, Facilities managers, and

Governments Industrial / Professional Associations

The Canadian GeoExchange Coalition acts as the industry catalyst to unite private and public sector stakeholders, and to expand the market for ground source heat pumps and geoexchange™ technology in Canada. As the nexus of information, training, certification, standards and public awareness, our mandate is to work with stakeholders to build the necessary infrastructure to foster the growth of the Canadian geoexchange™ industry.

Who are we?

Program Results – 2007-2009

TRAINING & ACCREDITATION

2800 Installers / 650 are accredited 1300 Residential Designers / 450 are accredited 78 Commercial Designers 13 Municipal Inspectors

COMPANY QUALIFICATION

340 qualified firms

SYSTEM CERTIFICATIONS

7000 Fully certified systems and over 500 under review 2000+ CSA compliance reports (before April 1st 2008)

Units Installed Per Year - All Markets 1996-2008

0

2000

4000

6000

8000

10000

12000

14000

16000

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008

Table 1Number of Units Installed Per Market Segment

Residential Sector ICI Sector Total

1996 532 650 1181

1997 372 454 826

1998 199 243 442

1999 453 554 1007

2000 492 601 1094

2001 893 1092 1985

2002 1288 1574 2861

2003 1075 1313 2388

2004 1088 1329 2417

2005 1552 1896 3448

2006 1898 2319 4217

2007 4187 4916 9103

2008 6914 8116 15030

System Retrofits - Fuel Replaced (Ontario)

Oil57,0%

Electricity20,8%

Wood1,3% Oil + Electricity

0,3%

Oil + Wood3,6%

Natural Gas6,3%

Propane10,8%

Geoexchange Systems By Loop TypeOntario

Closed Vertical14,02%

Closed Horizontal

67,74%

Open Loop12,27%Pond / Lake

Loop5,97%

Hotel Alt

14 storeys

159 rooms + meeting rooms

79 000 ft2 (7339 m2)

159 water to air heat pumps ( ¾ to 1.5 TR)

for individual rooms

11 water to air heat pumps (3 to 5 TR) for

meeting / conference rooms

2 water to water heat pumps (20 TR) to

preheat domestic hot water in full cooling

mode

38 x 150-meter boreholes

Building and geoexchange system characteristics

Hotel Alt – Energy and Financials

Estimated numbers are based on observed energy consumption from other hotels within Groupe Germain with the same / similar equipment and a comparable number of rooms. Space heating is provided by natural gas in the base case scenario.

$ MJ

Estimated Energy Consumption (Without Geo) $232 999 13 856 500

Real Energy Consumption (With Geo) $120 996 6 773 930

Difference $112 003 7 082 570

% 48% 51%

Without Geo With Geo Delta %

Electricity 1 887 000 kWh/year 1 215 720 kWh/year 35.6%

Natural Gas 186 446 m3 / year 63 271 m3 / year 66.1%

Veterans’ Hospital(Edith Temple Pavilion)

Long-term care facility

116 rooms

89 000 ft2 (8268 m2)

Two large capacity heat pumps in a central mechanical room

Avoid maintenance in the rooms Avoid noise (with heat pumps in ceilings) Central system allows for installation of high

efficiency air filters

System Capacity 160 tons in cooling mode 96.5 tons in heating mode

45 x 144-meter boreholes

Building and geoexchange system characteristics

Edith Temple Pavilion – Energy and Financials

Building performance: 40 % over MNEBC

Annual energy savings: 879 270 kWh (~ $290 000 / year)

Simple payback: 1.2 years (with subsidy)1.8 years (without subsidy)

GHG reductions: 53 t.eq. CO2 / year

Benny Farm

Three storey post WW II brick buildings

Social housing (subsidized rents)

Major retrofit – keep the cast-iron radiator

NGHP allowed the use of geoexchange

because they can bring the water temperature

to 60oC

Three heat pumps

Three boreholes (100 meters)

Building and geoexchange system characteristics

Natural gas provided 2/3 of the energy delivered by the heat pumps

Ground energy accounted for 1/3

Electricity for 1 %

Two of the three units were sufficient for meeting the space-heating and DHW preheating loads 99 % of the time

Based on gas price of $0.50/m3, savings for 2007-2008 were about $125 per apartment

Heat pump average GUE was 1.22 or 122 % efficiency

Benny Farm – Energy and Financials

IN-I-15

Commercial GeoExchange Systems – Cost Breakdown

45 % or $4500 Drilling, loop installation in the ground up to the

building foundation

10 % or $1000 Heat pump (cost per ton)

25 % or $2500 Plumbing work inside the building

10 % or $1000 Electrical wiring, controls, pipe insulation, etc.

10 % or $1000 Consulting (essentially the engineering design)

Cost breakdown for a commercial geoexchange project based

on a rough estimate of $10,000 per ton of capacity.

IN-I-16

Some advice

Make sure the design team members have received adequate training in

commercial applications

Check credentials / references

Verify professional affiliations (beware of unqualified designers!!!)

May wish to require CGC Commercial Design Course

Make sure the drilling / loop installation team are qualified and experienced in

the installation of ground loop and proper grouting practices

May wish to deal with CGC Qualified Companies only

Make sure the installation team in the building is properly trained and qualified

in the installation of commercial systems

May wish to require that CGC accredited installers are involved

Denis Tanguay(514) 807.7559 x 24

denis.tanguay@geoexchange.ca

www.geoexchange.ca

THANK YOU !