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GG ASHRAE: The Energy Audit Industry: Creating (and Sustaining) Credibility 2014-10-09

Best Practices
by

Jim Kelsey

on 24 September 2016

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Transcript of GG ASHRAE: The Energy Audit Industry: Creating (and Sustaining) Credibility 2014-10-09

Best Practices
Whole-building M&V
Measurements Are Key
Humans are Human
Seek involvement with key players at site
Let folks do what they’re good at
Leave site staff with the knowledge to follow through



Site inspections with staff can be misleading
Your questions may be threatening
Economics and "Selling" Efficiency
Simple Payback is still (unfortunately) king although it has many drawbacks

Life-cycle cost analysis (LCCA)
NPV
IRR or MIRR
Action-oriented
Build a team
Provide clear direction
Credibility is key
Follow up
Communicate!



Using these ideas - we can achieve high conversion rates
Team Building Is Key To Success
Don't Believe Everything You Hear
Proposed Std 211
The Energy Audit Industry: Creating
(and Sustaining) Credibility

Jim Kelsey, PE, LEED-AP, BEAP
President, kW Engineering

Celebrate Success
New approaches relying on interval data
www.utonline.org
Building Energy Assessment Professional Certification (BEAP)

ASHRAE Std 100

EDF's Investor Confidence Project www.eeperformance.org

ASTM 2797
`
Emphasize other benefits
Comfort, reliability
Incentives
Tax deductions
Water savings
Productivity / Sales
Property value impacts
Economic Analysis
"Selling" Your Ideas
Level 1: Walk-through
Level 2:
Detailed Energy Survey & Analysis
Level 3:
Detailed Survey & Analysis
Additional Measurements
Hourly Simulation
Life-cycle Cost Analysis
Detailed Specs
Risk Analysis
Rough Costs and Savings
Identify Capital Projects
Is there potential here?
Schedule Hot Water Pumps
Schedule AHU's
Sequence HHW valve, economizer and CHW valve
Install dead-band thermostats
SAT reset
SP reset
Occupancy controlled zones
Preliminary Energy Use Analysis
"Benchmark"
Total End Use Intensity
Total energy per gross area (kBTU/sf or MJ/m )
Compare to known sources or your own building stock
2
Packard ~ 105 kBTU/sf
www.energyiq.lbl.gov
Energy Audits Levels
End-use Breakdown
Energy Balance
Detailed Analysis
O&M Recommendations
Measure Key Parameters
Cost & Savings for EEMs
Supply Curve for Energy Savings
A little background
Energy Audits Are Like Photography
Everybody thinks they can do it
Tools are cheap and available
Producing a product is easy
But results may vary…
In fact, a lot of skills and experience are needed to ensure that recommendations are cost effective, technically feasible, and result in significant energy savings.

Need to maintain:
Safety / IAQ
Comfort
Reliability
Lack of Standard Methods
Lack of Consistent Reports
Energy Audits
EE growing (natl)
Financing increasingly available
Ordinances
Corporate goals
Purpose of "Green Book"
Set basis for discussing scope of work
Define levels of effort
Establish common vocabulary
Introduce best practices
Auditor & Utility
Integrated Energy Project (IEP)

BEDES - Now BuildingSync
Info Sharing

Open Source
Building Information
EEMs
Energy Efficiency
Renewable Energy
Demand Response
Water
CO2
Bills
Monthly
Interval
Team
Account Rep
Utility PM
Property Manager
Facilities Manager
(O & M)
Lighting Vendor
HVAC Vendor
Energy Auditor /
RCx Provider
The Old Days: Good, Bad and Ugly
"Customer"
Building Data
Contact Data
Utility Data
Measure Data
Dir. of Construction
CSO
XML
ENGINEERING SUSTAINABLE BUILDINGS

Software Impacts on Energy Audits
1st Edition emphasized:

Levels of Effort
I, II, III
Forms
Audit forms
Site use

Became de facto standard

bpd.lbl.gov
labs21benchmarking.lbl.gov
or… against your own buildings
Lessons Learned (So Far)
Energy Balance approach is rarer than you think
Gross Floor Area is harder than you think
Disparity in expectations for qualifications
More people claim an understanding of Levels 1, 2 and 3 than do
It's hard to regulate energy savings calcs
e.g approach to bundling
treatment of rates
Wide variety of wants, needs, desires for std
Additions from Previous Versions
Clearer scopes
Data exchange via BEDES (?)
Basic Risk Assessment (L3)

Auto FDD
Visualizations
"No touch"
94612
EEMs
Interval Data
Utility Data Summary
Process
Conduct Preliminary Energy Analysis (PEA)

Conduct walk-through survey

Meet with owner to review operations

Space function analysis

Identify low-cost/no-cost recommendations

Identify capital improvements

Level 1 Report
Estimate savings from utility rate change
Summarize utility data
Determine load shape irregularities
Compare EUI to that of similar sites
E.g. EnergyStar PM or Energy IQ
Estimate savings if EUI met target
Total energy costs by fuel type
O&M deficiencies, safety deficiencies
Low-cost, no-cost savings
Rough costs for capital projects

Other Standards /
Related Efforts

Owner
Conclusions
A lot of scope pressure!
SPC 211 intent to "standardize" approaches
Projects need a diverse set of people and skills
Interoperability increasingly important
Ignore innovation at your peril
CPUC
City Officials
Financing
GC
Controls Vendor
Private
PACE
ESCO
MESA
Green Banks
SF
NYC
Seattle
Competing Wants, Needs and Desires for Audits
What they’re not:
Continuously adjustable scale

Amatuers ≠ Experts
Data Collection
Reporting
Detail
Accuracy
Rigor
Confidence
Risk
Cost of Service
Cost of Saved Energy
What they’re not: versions of the same thing
www.ashrae.org/pcbea
Process
Detailed site visit
Review M&E design, condition and O&M practices
Measure key parameters
List all potential recommendations
Analyze capital measures (savings & costs including interaction)
Meet with owner/operators to review recommendations
Report
Estimate low/cost / no-cost savings
Perform detailed end-use breakdown
Estimate capital project costs and savings
Complete building description and equipment inventory
General description of considered measures
Recommended M&V method
Financial analysis of recommended EEMs
Fuel Cost Summary
www.cacx.org/PIER/ecam
Higher expectations for deliverables
Downward pressure on costs

Benchmarking results available online
Cities requiring audit results upload
BEDES
BPD
Others
M&V
Goals
Convert to code language
Tighten scopes
Schedule Hot Water Pumps
Schedule AHU's
Sequence HHW valve, economizer and CHW valve
Install dead-band thermostats
SAT reset
SP reset
Occupancy controlled zones
+
Site 1
Excessive Boiler Operation
Excessive Relief Fan Operation
Economizer Malfunction
Site 2
Economizer Malfunction
Excessive Relief Fan Operation
You are MegaWatt Man/Woman!
Full transcript