LARGE BUILDING ENERGY EFFICIENCY FOSTERING SUSTAINABLE PARTNERSHIPS BETWEEN BUILDING OPERATIONS AND ENVIRONMENT

Transcription

1 LARGE BUILDING ENERGY EFFICIENCY FOSTERING SUSTAINABLE PARTNERSHIPS BETWEEN BUILDING OPERATIONS AND ENVIRONMENT

2 INTRODUCTION & LITTLE BIT OF HISTORY Dean Turgeon, President & CEO of Vital Engineering and 3D Energy Vital was founded in 2002 and purchased Ontario based 3D Energy in 2012 (and moved it to Alberta) 24 Employees consulting of Building Systems Engineers, Energy Engineers, Cost Consultants and administrative personnel Operates as a Professional Consulting Engineering Entity

3 IS AN AUDIT WARRANTED?

4 IT ALL STARTS WITH AN AUDIT.. Energy Audits Several Levels of Audits: Preliminary, Targeted, and ASHRAE Levels 1, 2, 3 Target cost, energy, and GHG savings Done through assessing site and proposing energy conservation measures Examine all building components that contribute to energy consumption: Building Envelope HVAC Appliances and componentry Building schedules Operations and maintenance procedure Credit: MiKinsey Analysis (2011)

5 AUDITING PROCESS Measurement Start-up meeting Desktop data collection Site walk-through Discuss occupancy with staff Energy Modelling Baseline energy model Calibrate model using utility data Create energy model for building using various software's Assessment Evaluate client budget, building structure, energy processes, HVAC and electrical systems, waste, and provide cost-effective solutions Energy Efficiency Measures Implementation Create implementation plan for client based on budget, funding, and building schedule Benchmarking Area takeoffs Compare EUI to similar sites

6 TYPICAL ECMS ECMs vary from site to site, but here are some typical solutions LED light replacements Building envelope upgrade Windows, walls, roof and ceiling Pumps optimization Presence sensors/lighting controls/daylight sensors Combined heating and power systems (CHP) Renewable energy feasibility Low flow fixtures/energystar appliances Creative site specific applications based on Archtype

7 COSTS & SAVINGS Energy Audits range in cost based on several factors: Building size and complexity Site location Funding Staff/Level of expertise required Payback can vary on several factors: Building age, condition, orientation Utility expenses Past energy measures Auditing grants and subsidies available (numerous today) Typical Audit Implementation Payback: 5-10 years

8 PROJECT EXAMPLES Allan & Millar Centre Energy Audit Project Information: Level 2 Energy Audit for TAME+ Program 6,931 m 2 Recreation Centre in Whitecourt, AB occupied in ECMs with 5-year simple payback Annual energy savings: 10,706 GJ/year Annual GHG Reduction: 1,595 tco 2 e/year MCCAC TAME+ Program (50% of Audit Costs Rebated)

9 ALLAN & MILLAR CENTRE DETAILS ECM Description Air Handling Unit Annual Energy Savings (kwh) Annual GHG Reduction (tco 2 e/year) Initial Capital Cost ($) Simple Payback Period (years) Baseline NPV ($) Retrofit NPV ($) 396, , , ,612 Pump VFD 42, , ,810 13,401 Low-flow Faucets Occupancy Sensors Pool Area LED Upgrade Fieldhouse LED Upgrade Offices LED Upgrade CHP Unit Installation Exterior LED Lighting Upgrade 436, , ,145 89,127 24, , ,265 58, , ,050-33, , , ,480 29,424 2, , ,357-2,285 1,875,557 1, , ,639 25, , ,728 11,299 Project Totals 2,973,889 1, , , ,052

10 PROJECT EXAMPLES University of Alberta Agriculture & Forestry Building Project Information: Solar PV Feasibility Study 20 kw Integrated PV into the window glazing Energy generation: MWh/year Cost savings: $1,278/year Glazing and lighting upgrade Upgrade glazing specifications Energy savings: 584 GJ/year Cost savings: $3,549/year

11 PROJECT EXAMPLES University of Alberta Natural Resources Engineering Facility (NREF) Project Information: Level 3 Energy Audit 30,413 m 2 building with nine classrooms, 26 specialized instructional labs, and 78 research labs Scope of Audit: Ventilation reduction from lab spaces Feasibility of an air sampling system/hvac components and controls Zone presence sensors Annual energy savings: 16,968 GJ/year Estimated Simple Payback: 6.56 years

12 ONGOING ENERGY MANAGEMENT Energy Management Strategies to employ following construction and certification: Actively manage and monitor energy use Develop energy leadership team within facility Have team develop energy management plan Establish occupancy awareness plan Ensure equipment is commissioned regularly Technology Advancements in energy efficiency

13 ONGOING ENERGY MANAGEMENT Create an Energy Management and Implementation plan for your building Develop economic model for a sustainable vision First: Invest in high-return, lowhanging fruit projects Then: Use savings from these projects to fund more ambitious projects Renewable energy, envelope upgrades, etc Proven model for savings Federal grants currently available for setup of an Energy Management Program Energy Audit Low-cost, high-return ECMs Ambitious, High-cost projects

14 THANK YOU!

15 THANK YOU!