Smart Energy GridsSoutheast, Northeast & Southwest Sectors Downtown Campus

Projects Rationale

McGill set out to become carbon neutral by 2040. 60% of today’s emissions are from energy use. Provincial policies (Plan d’action contre les changements

climatiques 2020 and Politique énergétiques québécoise2030) require that public institutions reduce their energy use and carbon footprint. McGill’s Energy Management Plan targets 22% reduction in

energy use intensity (ref. 2012-13) and 64% reduction in GHG emissions (ref. 1990) by 2020.

Methodology

Solution

Deploy local heat recovery loops. Recover lost energy from air exhausts and extract heat

from space/equipment with excess heat (e.g. research space, IT cabinets, mechanical rooms, electrical rooms). Send recovered heat to buildings that need energy. To maximize efficiency:

• Centralize equipment by using existing chillers/installing new chillers in heat recovery mode instead of decentralized heat pumps that would require more maintenance.

• Work with low-temperature hot water (100-140°F).

Energy use intensity High Low

Heat recovery within building.Heat exchange between buildings.Future deployment(heat exchange between buildings).

Legend

Southeast Sector

Solution

Energy use intensity High Low

Heat recovery within building.Heat exchange between buildings.Future deployment(heat exchange between buildings).Plan for Strathcona Anatomy & Dentistry pending further development of the RVH Project.

Legend

Northeast Sector

Solution

Energy use intensity High Low

Heat recovery within building.Heat exchange between buildings.Future deployment (heat exchange between buildings).Installation of solar heat pump.

Legend

Southwest Sector

Solution

Benefits

Significant reduction in steam consumption with minimal increase in electricity; overall energy savings in the 10% to 15% for the total area. Significant reduction in GHG emissions – more than

10% of McGill’s overall building energy use emissions. Increased comfort for building users (no more shoulder

season with year-round cooling available) Increased service for the research community (needs of

research projects will be better accommodated with year-round cooling loop, thereby reducing hindrance for research space upgrades)

BenefitsBefore project implementation

Heating demand met by steam

Heating needs met by heat recovery (existing)

Cooling demand(balance)

Cooling demand met by heat recovery

BenefitsAfter project implementation

Heating demand met by heat recovery44% savings on steam

Extra cooling demand for shoulder season

Cooling demand met by heat recovery

7% increase in electricity consumption

Benefits

Notes regarding the previous slide: Other energy conservation projects have already

reduced heating demand on campus (e.g. McLennan HVAC Upgrade, Retro-Commissioning Projects, etc.) These projects don’t seek to reduce the campus

buildings’ heating demand (i.e. how much heating is required to maintain conditions in buildings). These projects will address which energy sources are

used to meet this demand (i.e. use “free heating” from heat recovery instead of steam).

Impact

Minimal impact associated with equipment installation: the equipment are standard and construction will mostly happen in mechanical rooms. Some service interruptions will impact building users.• Impact mitigation measure: communication strategy to coordinate

shutdowns with building users with much anticipation.

Medium to high risk associated with mechanical systems controls & programming: heretofore independent systems will have to communicate and be controlled in concert with one another.• Risk mitigation measure: enhanced commissioning mandate given to

third party professional who will be involved at design, construction, and commissioning. Extended mandate to monitor performance 24 months after commissioning and fine tune systems.

Schedule

Phase Lot Start Date

Concept and DesignSENE

CompletedQ4 17

SW Q4 17

Tender (posting – opening)SENE

Q4 17Q1 19

SW Q2 19

ConstructionSENE

Q1 18Q2 19

SW Q3 19

Commissioning and Monitoring Period (2 years)SENE

Q1 19Q4 19

SW Q1 20