laboratories and energy savings opportunities that can foster · ameresco introduction 3...
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Laboratories and Energy Savings Opportunities that can Foster Facility Renewal
September 4, 2013
Sustainability and Energy Reduction
By Roy Samhaber
& Robert Bohnen
Ameresco Introduction
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Established in Canada in 1973
Specializing in exis8ng building energy management & building system renewal – including asset planning
112 employees across Canada
Experience in all sectors and building types
Client focused solu8ons – product independent
Recent Successes
Na8onal Research Council (Building M-‐12 & S-‐77)
PWGSC (7 major projects) > NDHQ – 3 phases > Lester B. Pearson – Foreign Affairs and Interna8onal Trade > Na8onal Library and Public Archives > Place du Portage – 3 Phases
St. Lawrence College (3 campus sites) OZawa-‐Carleton District School Board (4 phases with 152
schools)
Carleton University (2 phases)
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Value Creation
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Annual U(lity Cost $1,300,000
*Opera(ng cost savings redirected to capital projects
Creation of a Funding Pool to Address capital Needs
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10-yr project
$M Fun
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*$260,000
*Opera(ng cost savings redirected to capital projects
Annual U(lity Cost $1,300,000
YEARS
Value Creation
Facility Capital Renewal Need - Growing
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Unfunded Liability Funding
Unfunded Liability (Renewal Gap)
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Unfunded Liability (Renewal Gap)
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Longer Term Energy Savings (and Renewable Solu(ons)
Reduced Unfunded Liability
Sample Program of Measures for Labs
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Fume Hood Exhaust Heat Recovery
Fan Coil Control
Make-‐up Air Hea8ng Conversion
Steam System Op8miza8on
Purified Water System
Ligh8ng Retrofit
Water Efficiency Upgrade
Hot Water Boiler Plant
New Hot Water Hea8ng Piping System
NRC – Puddington (M-‐12) Investment: $3,705,000 Annual Savings: $482,800 Completed: 2009 GHG Reduc(on: 1,750
NRC -‐ 100 Sussex Drive Investment: $9,340,000 Annual Savings: $868,000 Completed: 2013 GHG Reduc(on: 3,132 tonnes
Comprehensive Systems Approach
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3. Plant
2. System
1. Load
What is the Opportunity?
Energy consump8on and u8lity cost range for labs is very high – as much as 3 to 8 8mes that of an office building
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70 to 100 ekWh psf 750 to 1,000 GJ psm
$4.50 to $7.00 psf $50.00 to $75.00 psm
Utility Cost Range:
Energy Consumption Experience in Lab Facilities:
Laboratories are Energy-Intensive
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Typical
Office Building
Typical Hospital
Total Site Energy Use Intensity BTU/sf-yr for various laboratories in the Labs21 Benchmarking Database
Lab Standards
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ANSI/AIHA Z9.5 – American Na8onal Standard for Lab Ven8la8on
NFPA 45 – Fire Protec8on for Laboratories using Chemicals
NFPA 91 – Exhaust Systems for Air Conveying of Materials
OSHA 29 CFR Part 1910 – Occupa8onal Exposure to Hazardous Chemicals in Laboratories
ANSI/ASHRAE 110 – Method of Tes8ng of Lab Fume Hoods
ASHRAE 62.1 – Standard on Ven8la8on for Acceptable IAQ
MD15128 – Laboratory Fume Hoods, Guidelines for Building Owners, Design Professionals, and Maintenance Personnel
Fume Hood Systems
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Fume Hood System Renewal
Retrofit exis8ng fume hoods for variable air volume opera8on with new controls
Convert the Lab supply air systems to variable flow control
integrated with the building automa8on system Examples of this approach can be found in a number of
Labs including NRC
Proposed Fume Hood Retrofit
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Fume Hood Summary
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Other Measures
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Exhaust Heat Recovery
Capturing approximately 80% of the air exhausted to reuse heat or cooling in the building
Fan Coil Control
Transi8on room pneuma8c controls to building automa8on system for beZer opera8on and feedback
Other Measures (cont’d)
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Make-‐up Air Hea(ng Conversion
Replace exis8ng steam hea8ng coil and convert to high efficiency hot water boilers
Steam System Op(miza(on
Isolate or decommission unused steam lines Convert steam hea8ng loads to hot water hea8ng where
possible
Other Measures (cont’d)
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Replacement of steam water dis8llers
Replace exis8ng branch lines with high purity piping material
Provide a new reverse osmosis (RO) unit
Purified Water System
Other Measures (cont’d)
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Ligh(ng Retrofit Implement latest T8 technology in hallways, library
stacks and retrofit the auditorium fixtures Water Efficiency Upgrade Install low-‐flow toilets, flush valves, and other water
conserva8on strategies
Other Measures (cont’d)
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Hot Water Boiler Plant
Eliminate more expensive sources of hot water supply by installa8on of a new higher efficiency hea8ng system
New Hot Water Hea(ng Piping
Replace exis8ng extensive HW distribu8on piping around perimeter area on all floors (important renewal measure)
Program Implementation
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Program approved and ready for implementa8on in collabora8on with Client team
Coordina8on through the Lab and Facility contacts
Access to Labs and work spaces to be planned
Security protocols to be followed
Construc8on period determined in part by Lab schedules
Every effort made to have work performed in Lab spaces at one 8me to minimize disrup8on
Some cri8cal Labs would not be included
Thank you!