Perspective program for commercial new construction
Download
1 / 17

Perspective Program for Commercial New Construction - PowerPoint PPT Presentation


  • 113 Views
  • Uploaded on

Perspective Program for Commercial New Construction. CNC Small Office RTF July 2007. Goal: A Prescriptive Program For Selected Simple Commercial New Construction. Whole-building, integrated measure approach where possible and effective Deemed or deemed-calculated savings

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Perspective Program for Commercial New Construction' - keene


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Goal a prescriptive program for selected simple commercial new construction
Goal: A Prescriptive Program For Selected Simple Commercial New Construction

  • Whole-building, integrated measure approach where possible and effective

  • Deemed or deemed-calculated savings

  • Commonality across the region

  • Training for designers, builders & developers


Progress
Progress

  • CNC Strategy Group

    • Six meetings on regional needs & opportunities

  • RTF Subcommittee

    • Small Office Focus

    • Reviewed 21 measures, analyzed 8 in detail

    • Oregon code base, two climates Boise & Portland

    • Four HVAC system types considered

      • PSZGas, PSZHP, PVAVElec, PVAVGas

    • Details in: DRAFT CNC Prescriptive Concept July2007.doc


Progress1
Progress

  • Several iterations on baseline conditions

    • Size, fenestration, HVAC system, schedules …

  • Several iterations on measures

    • What is the measure, how to model it in EQuest

    • Incremental cost difficult to acquire


Detailed analysis on 8 measures
Detailed Analysis on 8 Measures

  • Glass

    • Code to U40 SHGC40

    • Code to U35 SHGC35

  • Lighting Power Density

    • Code (1.0 W/sf) to 0.75 W/sf

    • HPT8 & T5HO

  • Occupancy sensor lighting in open office

  • Fan power improvement

  • Rooftop economizer Cx

  • Premium HVAC equipment (CEE Tier 2 EERs)


Summary of results to date
Summary of Results to Date

  • Most measures look to be TRC cost-effective except:

    • CEE Tier 2 equipment

    • Fan power in the VAV systems

    • Rooftop CX in the PSZ systems

    • T5HO lighting option

  • Most kWh savings provided by HPT8 lighting

  • Windows: Second biggest electric measure & the biggest gas measure

  • HVAC measures provide about 1/5 of lighting & window savings


Summary of results to date1
Summary of Results to Date

  • Climate makes little difference in the kWh savings estimates

    • Except for windows in the HP systems

  • Climate makes a very modest difference in gas savings for the U35 window measure

  • HVAC system type has bigger impact on kWh & therm savings









Measures combined to packages
Measures Combined to Packages

  • B/C ratios are between 1.0 and 2.0 for most packages

    • High B/C measures compensate for low

  • But not enough savings to cover all the low B/C ratio measures

    • Either CEE T2 OR T5HO lighting option

  • See tables in: SmallOffice-PC253-alpha.xls


Issues
Issues

  • CEE Tier 2 HVAC Equip

    • Cost uncertainty & Low B/C ratio

    • Will costs come down?

  • Packages

  • Is baseline really code? What is standard practice?

    • Window U value and SHGC

    • LPD

  • Other measures

  • Other state baselines


Recommendations
Recommendations

  • Plenty of cost-effective savings to proceed

  • Start program design work

  • Package measures into appropriate bundles

  • Develop specifications for measures

  • Analyze other state baselines

  • Analyze other climates

  • Design evaluation