Building Energy Asset Score

Transcription

1 Building Energy Asset Score An opportunity to participate with pioneering programs guided by the Consortium for Building Energy Innovation (CBEI) 15 th October, 2015

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3 Consortium for Building Energy Innovation

4 Vision Be recognized in the commercial building market as a center of excellence on energy efficiency for small and medium sized commercial buildings Expand sphere of influence to include building to grid, multifamily, new construction, and large commercial

5 CBEI Focus Areas Focus Area Opportunities Developing and Demonstrating Building Controls and Technology Packages: conducting proof of concept demonstrations for technology package in real operating environments Informing Policy Development: Supporting states, regions, cities, and utilities with solutions to improve building energy use on a regional scale BTO/Federal FOAs concepts to be developed Utilities need to further explore opportunities, particularly with NE state utilities, where deep energy reduction is required BTO/Federal FOAs concepts to be developed Support regions on benchmarking and data access Support efforts to improve code compliance Creating and Delivering Education and Training Solutions: building and delivering curricula for professional growth BTO/Federal FOAs concepts to be developed PSU undergraduate and graduate classes Continuing education and training programs for the trades Developing a National Community: establishing and connecting a national community and forum to support SMSCB Annual conference Virtual solution center

6 Asset Score - Overview The Building Energy Asset Score (Asset Score) tool allows a user without energy modeling expertise to easily and reliably build a robust 3-D model of a building s physical assets and simulate the building s energy use. Designed by the DOE and PNNL to act as a national standard for building energy efficiency assessment, it provides users with: A 1-10 point asset score based on the building s physical assets and a weather-normalized EUI based on an EnergyPlus model Upgrade recommendations for reducing energy use, minimizing energy bills, and improving building asset value by quantified amounts 6

7 Why Asset Score? Buildings #1 and #2 have similar ENERGY STAR scores, but widely divergent asset scores. Asset Score when used in parallel with Energy Star score can inform the decisions of an architect, energy consultant, contractor, building owner, operator, buyer, or lessee in prioritizing energy efficiency investment projects Good energy assets Poor operation May be a candidate for low-cost operational improvements. Poor energy assets Good operation Low asset score may highlight need to replace outdated equipment or prepare for replacement costs in the near future. 7

8 How does it work? The process involves four steps 1. Data Collection 2. Data Entry 3. Data Assignment 4. Report Generation In the Field In the Tool 8/10/2015 8

9 How does it work? Inputs Outputs Building Systems Information - Data Entry Geometry and Data Assignment Asset Score Report Asset Score Model 9

10 Inputs Data Entry Asset Score is a web-based tool that offers users easy to use drop-down menus as well as customization options. General information: zip code, use type, gross floor area, building type Envelope components: Roof, exterior wall, floor types, insulation levels Fenestration: Skylights, windows, shading Lighting: Fixture types, # of fixtures or % of served floor area, lighting controls Mechanical components: HVAC, Cooling/heating types, controls, equipment efficiency Service water heating: Fuel type, distribution type, equipment efficiency Geometry: Floors, orientation, shape, heights 10

11 Inputs Data Assignment Each volume in the basic building geometry can be assigned unique building information The Asset Score tool runs a whole building energy simulation using DOE s EnergyPlus software. 11

12 Potential Building Types The EnergyPlus simulation accounts for typical building operations, occupancy, and tenant behaviors based on the building type assigned to each volume. The use types included in the model are based on ASHRAE 90.1 building type classifications, CBECS building types and ENERGY STAR Portfolio Manager property type definitions Office Retail Multifamily Assisted living City Hall Community Center Courthouse Educational (including K-12 schools) House of Worship Library Lodging Medical Office Parking Garage Police Station Post Office Senior Center Warehouse (unrefrigerated) Mixed-Use (of the above types) 12

13 Outputs Asset Score Report Basic building information: Property address, year built, climate zone, building type, year the energy Asset Score is issued Building asset summary used in model Source energy use intensity summary and score Potential source energy use and score after the identified upgrades are completed Energy savings and costs options for suggested upgrades and improvement opportunities Source and site energy use breakdown by end use System-level (envelope components, lighting, HVAC, and service hot water systems) evaluations 13

14 Outputs Asset Score Report Example 14

15 Outputs Asset Score Report Example 15

16 Outputs Asset Score Model Export The AST model can be exported to EnergyPlus, where additional detailed modeling can be done for further analysis. Examples include Atmospheric pollution, daylighting controls, thermal loading and comfort, and anisotrophic solar modeling. 16

17 Value Guides energy-related design decisions Provides a preliminary parametric building audit Allows for quick and easy modeling of various asset investment options in one building, comparisons across different designs, or comparison within a portfolios of buildings. National recognition from DOE Strengthen EE (Energy Efficiency) service offerings to clients and enhance business development Communicate EE capital investments and enhanced asset value 17

18 Follow up steps CBEI and CMU Obtained GBCI CE credits and AIA CE credits for people attending our next training sessions/ webinars Conduct a training sessions/webinars hosted by USGBC for MBAWP members Assist users in generating Asset Score for complex buildings Support from you Get the word out in MBAWP about the tool, webinar and training sessions Suggestions on MBAWP conferences/ events at which the training sessions could be offered. 18

19 Useful Links Energy Asset Score Energy Asset Score Tool EnergyPlus Software 19

20 Contact Erica Cochran : ericadcochran@cmu.edu Amanda Lloyd : amanda3@upenn.edu Flore Marion: fmarion@andrew.edu.cmu Nora Wang: nora.wang@pnnl.gov Andrew Burr (FELLOW) Andrew.Burr@ee.doe.gov 20