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

260K260K260K260K260K260K260K260K260K 260K

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4.0

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0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

1 2 3 4 5 6 7 8 9 10

10-yr project

$M  Fun

ding  Poo

l  

*$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!