Quality and Productivity Database

Descriptive Title of Proposal: The Value of Energy Audits and Conservation Initiatives for all Campuses
Year Submitted 2004
Name (Senior Administrative Office of the Institution) Aidan E. Kiernan Associate Vice President, Campus Development & Facilities Okanagan University College 1000 K.L.O. Road KELOWNA BC V1Y 4X8 Telephone: 250-862-5612 Fax: 250-862-5615 E-Mail: akiernan@ouc.bc.ca
Abstract

The City of Kelowna discharges 28 million litres of wastewater per day into Lake Okanagan. The Wastewater Heat Réclamation project is using up to six million litres of this water as its source. By allowing OUC to use this wastewater, the City has contributed to the energy savings aspect of the project by approximately $100,000 annually, This project greatly contributes to the local environment, habitats and longterm health ofLake Okanagan by decreasing the température of the wastewater entenng the lake. In addition, this project qualifledfor a number of différent incentive programs including NRCAN and ihrough Aquila (energy supplier)

Criteria Please submit one paragraph describing how the proposal fulfills each of the evaluation criteria.
Transferability

The energy solutions that. encompass this project were the resuit of a comprehensive energy audit completed during 2001 and 2002. Our institutions ail differ in terms of infrastructure, location and âge but with today's technology new solutions can be found for both our ageing and relatively new campuses. The advanced and innovative technology used in implementing this wastewater project will service as a démonstration site to showcase how a 40-year-old campus can contribute in a meaningful way to energy conservation in the 21st century. Otherfindings from the energy audit identified opportunities for reducing energy costs on a relatively new campus ihrough electrical metering reconfiguration.

Quality Impact

From an ecological perspective, this project results a réduction in carbon dioxide équivalent of 819 tonnes of C02. Thèse réductions are équivalent to planting 418 acres of trees or taking 166 cars off the road. Updating the 40year old technology on the campus will greatly improve the interioryear round climates on our oldest campus.

Productivity Impact

This project highlights the energy conservation measures at OUC's South andNorth campuses. The base project enhances operating conditions within the two campuses, replaces and significantly improves the core heating and cooling infrastructure while permanently reducing energy and operating costs by an estimated overall amount of $300,000 annually (at 2003 energy rates). The savings are realized by implementing a comprehensive capital improvement program costing $2.4 million with an estimated payback of 8years. Project cost and savings summary: Measures Project Cost [$] Estimated Savings [$/Yr] Simple Payback [Yr] OUC Base Project NORTH KELOWA CAMPUS Electric Meters' Amalgamation $0 $111,629 - Central Plant Combustion Fan control $8,392 $3,155 2.7 Central Plant Primary Secondary Loop $27,573 $6,778 4.1 Hydronic Heating Loop Optimization $33,979 $5,664 6.0 Ventilation optimization (Gym, Student Services, Arts, Science, Health) $203,231 $45,804 4.4 Central Plant Efficient Burner $21,351 $6,027 3,5 SOUTH (KLO) CAMPUS Heat pump chiller plant with two high efficiency condensing boilers $1,507,093 $99,564 15.1 - Capital Improvement Measures Trades Underground Piping Replacement New efficient chillers $150,000 $420,470 $0 Ventilation optimization [Library, Cafeteria, Business, Student Services, Health, Fine Arts] $116,453 $14,711 7.9 Cafeteria Condensing Water Heaters $44,396 $5,112 8.7 Study costs $49,570 Base Project Costs $2,582,508 $298,444 8.7 Aquila study incentive -$5,000 Aquila Base Project Implementation Incentives -$23,105 NRCAN study incentive -$24,785 NRCAN Bas Project Implementation Incentives -$117,382 Total Base Project $2,412,236 $298,444 8.08

Innovation

While the project employs established heat pump technology, its uniqueness lies in the project 's ability to use 140°F water to heat a campus whose heating Systems are designed to operate with 220°F water. This is accomplished by relatively minor re-piping ofthe cooling/heating Systems within the existing mechanical plant. New heat pump chillers tie into the campus 's existing heating water distribution and act as a base load heat source. The new heat pump units transfer heat from existing clear water discharge into the heating distribution system. See attached MS Power Point for project schematics overview.