Fitting GeoExchange Heating and Cooling to Your Building Denis Tanguay President & CEO Canadian 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 – 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  CSA compliance reports (before April 1 st 2008)

Hotel Alt  14 storeys  159 rooms + meeting rooms  ft 2 (7339 m 2 )  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.

Veterans’ Hospital (Edith Temple Pavilion)  Long-term care facility  116 rooms  ft 2 (8268 m 2 )  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: kWh (~ $ / year) Simple payback:1.2 years (with subsidy) 1.8 years (without subsidy) GHG reductions:53 t.eq. CO 2 / 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 60 o C  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/m 3, savings for 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 $4500Drilling, loop installation in the ground up to the building foundation 10 % or $1000Heat pump (cost per ton) 25 % or $2500Plumbing work inside the building 10 % or $1000Electrical wiring, controls, pipe insulation, etc. 10 % or $1000Consulting (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) x 24 THANK YOU !