Whole Building Performance Metrics for Commercial Buildings Kim M. - - PowerPoint PPT Presentation

▶
whole building performance metrics for commercial
SMART_READER_LITE
LIVE PREVIEW

Whole Building Performance Metrics for Commercial Buildings Kim M. - - PowerPoint PPT Presentation

Feb 23, 2023 422 likes •628 views

Whole Building Performance Metrics for Commercial Buildings Kim M. Fowler Chief Research Engineer Sustainable Design and Development Pacific Northwest National Laboratory Phone: 509-372-4233 Email: kim.fowler@pnl.gov November 17 th ,

slide-1
SLIDE 1

“Whole Building” Performance Metrics for Commercial Buildings

Kim M. Fowler Chief Research Engineer Sustainable Design and Development Pacific Northwest National Laboratory Phone: 509-372-4233 Email: kim.fowler@pnl.gov

November 17th, 2010

1

slide-2
SLIDE 2

PERFORMANCE METRICS OVERVIEW

“Whole” Building performance metrics measure the sustainability- related attributes across primary areas of existing building operations and costs: energy, water, operations & maintenance, purchasing, waste & recycling, indoor environmental quality, and transportation.

2

slide-3
SLIDE 3

PERFORMANCE METRICS OVERVIEW

Levels of detail

Informative Identifying major strengths and weaknesses about the building Investigative Examining aspects of a building to discover which building systems are impacting performance Diagnostic Identifying specifically how a building system needs to change to improve performance

3

slide-4
SLIDE 4

EXAMPLE: WATER METRICS

Level 1 Level 2 Level 1

slide-5
SLIDE 5

EXAMPLE: WATER METRICS

5

Level 1 Level 2

slide-6
SLIDE 6

Indoor Potable Water Use

Restroom Potable Water

Sink Water Use Toilet Water Use Urinal Water Use

Kitchen Water Use Shower Facility Water Use Drinking Fountain Water Use Janitorial Water Use Laundry Water Use ……

EXAMPLE: WATER METRICS

6

Level 3 Level 4

slide-7
SLIDE 7

Level 1 Level 2 Level 3 Level 4 Reporting Units (IP) Reporting Units (SI) Typical Data Source

Total Building Water Use gal/ft2 L/m2, m3/m2 Utility Bill Total Building Water Cost cost/ft2 cost/m2 Utility Bill Indoor Potable Water Use gal/ft2, gal/occupant L/m2, m3/m2, L/occupant, m3/occupant Meter, Utility Bill Indoor Potable Water Cost cost/ft2, cost/occupant cost/m2, cost/occupant Utility Bill, Calculation Restroom Potable Water Use gal/ft2, gal/occupant L/m2, m3/m2, L/occupant, m3/occupant Meter Sink Water Use gal/ft2, gal/occupant L/m2, m3/m2, L/occupant, m3/occupant Meter

7

EXAMPLE: WATER METRICS

slide-8
SLIDE 8

PERFORMANCE METRICS PUBLIC SECTOR

Green portfolio compared to industry & internal standards Matched pairs analysis Pre- and post-occupancy analysis

8

slide-9
SLIDE 9

9

PORTFOLIO ANALYSIS Example

slide-10
SLIDE 10

10

PERFORMANCE METRICS COMMERCIAL BUILDINGS

slide-11
SLIDE 11

11

ENERGY PERFORMANCE Example

EUI = 70 & Energy Star Score = 82

slide-12
SLIDE 12

WATER PERFORMANCE Example

12

Water use 50% below industry baseline

slide-13
SLIDE 13

13

MAINTENANCE, OCCUPANT SATISFACTION, and ENERGY METRICS Example

(82)

slide-14
SLIDE 14

OCCUPANT SATISFACTION METRIC Example

14

slide-15
SLIDE 15

PILOT STUDY

15

Pilot test goals

Clarify metrics so that they meet the needs of the commercial building sector Identify metrics that are difficult to collect Identify metrics that commercial building owners are willing to share with the building industry

Volunteer’s responsibilities

Collect building data Building square footage, number of occupants, etc. Utility bills Employee survey re: the building & commute Share the performance observations with DOE Share lessons learned from data collection and analysis

Technical assistance provided by PNNL and NREL

slide-16
SLIDE 16

USER’S GUIDE

16

slide-17
SLIDE 17

HOW TO USE PERFORMANCE METRICS?

17

slide-18
SLIDE 18

HOW TO USE PERFORMANCE METRICS?

18

slide-19
SLIDE 19

“Whole Building” Performance Metrics

Kim M. Fowler Chief Research Engineer Sustainable Design and Development Pacific Northwest National Laboratory Phone: 509-372-4233 Email: kim.fowler@pnl.gov

November 17th, 2010

19