patrick riakos jeremy tarbox ara hvacr energy efficiency seminar 2016 - oeh v1 6
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The Energy Measurement & Verification Revolution Patrick Riakos Project Officer – Energy Efficient Business
Jeremy Tarbox Project Officer – Markets and Finance
Overview
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016 2
Support offered by the OEH Energy Efficient Business (EEB) Unit
Good energy Measurement and Verification (M&V) practices
Accessing the NSW Energy Savings Scheme (ESS)
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016 3
http://www.aph.gov.au/About_Parliament/Parliamentary_Departments/Parliamentary_Library/pubs/BriefingBook44p/EnergyPrices
Energy Price Trend
Energy Efficient Business (EEB) Unit
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016 4
Energy conservation
measure ECM identify ECM
implement ECM measure
& verify
Energy Efficient Business program
Energy auditing
Technical support M&V
Training, Support, Tool kits and Guides
Project Support
• Energy Management Basics
• Commercial Refrigeration
• Lighting
• Industrial Refrigeration
• HVAC Optimisation
• Energy Efficient Lighting
• Cogeneration Feasibility
• Building The Business Case
• Gas Efficiency
• PIAM&V training
5
Energy Efficiency Training
$200 metro, $100 regional Customised courses
$2,000
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
http://www.environment.nsw.gov.au/business/energy-efficiency-training.htm
Energy Efficient Business (EEB) Unit
• Energy Efficiency & Renewable Finance Guide
• Industrial Refrigeration Gudie
• HVAC Optimisation Guide
• Energy Efficient Lighting + Calculight
• Cogeneration Feasibility Guide + Tool
• And more
6
Resources
Energy Efficient Business Program
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
http://www.environment.nsw.gov.au/business/energy-efficiency-guides.htm
7 PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Latest Guide – Voltage Optimisation
8
Case Studies
http://www.environment.nsw.gov.au/resources/business/160223CaseStudyIndustrialDrying.pdf
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
NSW business support for energy efficiency
9 PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Why Measure and Verify?
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2013 2014
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
International Performance Measurement & Verification Protocol (IPMVP)
Translated into: Bulgarian Chinese Czech Japanese Korean Polish Portuguese Romanian Russian Spanish Ukrainian
Most interest: 1. USA 2. Spain 3. Canada 4. UK 5. France 6. Mexico 7. Italy 8. Australia 9. Thailand 10. India
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
The IPMVP
Energy Savings = Base Year
Energy Use - Post-Retrofit Energy Use
+/-
Adjustments
Key Terms
Measurement Boundary
Interactive Effects
Routine and Non-Routine Adjustments
Independent Variables
Energy Model
Baseline Period
Reporting Period (Post Project/Operating/Verification Period)
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Option A: • Retrofit isolation
• Key parameter measurement
Option B: • Retrofit isolation
• Full parameter measurement
Option C: • Whole facility
Option D: • Calibrated simulation
IPMVP
IPMVP Calculation Options
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Comparing Apples with Apples
Source: OEH M&V Operational Guide
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Comparing Oranges with Oranges
Baseline Period Post-Retrofit Performance Period
Adjustment Period
Retrofit
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
The Energy Savings Scheme (ESS) – How does it work?
Energy Users
Electricity Retailers
EE Projects
Suppliers
Accredited Certificate Providers
Auditors
Brokers
IPART
ESCs
$ $
Energy Savings $
Office of Environment and Heritage (OEH) + Department of Industry (DoI)
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Where to find more information?
Energy Savings Scheme Website: • http://www.ess.nsw.gov.au/Home
Accredited Certificate Provider (ACP) Directory • http://acpdirectory.environment.nsw.gov.au/
Office of Environment & Heritage PIAM&V • http://www.environment.nsw.gov.au/business/ener
gy-savings-scheme.htm
Out Performers Pty Ltd • http://www.outperformers.com.au/
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Deemed Methods
• Commercial Lighting
• Business Appliances
• High Efficiency Motors
• Power Factor Correction
• Home Energy Efficiency Retrofits
• 1-for-1 Residential Downlight Replacement
• Removal of Old Appliances
• Sale of New Appliances
Metered Baseline Methods
NABERS Baseline
Baseline Unaffected by Output
Baseline per Unit of Output
Normalised Baseline
Aggregated Metered Baseline
Project Impact Assessment (PIA) Method
Project Impact Assessment with M&V (PIAM&V)
ESS Calculation Methods
Phased-out
Viable for projects with smaller energy savings, or
limited data Viable for projects where savings significant % of site load, and/or
good data available PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Commercial Lighting
ESS Methods for Commercial and Industrial Sites
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Appliances for Business
High Efficiency
Motors
Metered Baseline
NABERS Baseline
PIAM&V
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Choosing Appropriate Methods
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Potential ESCs per Project
Com
plex
ity +
Cos
t of M
etho
d
Lighting
PFC
PIAM
PIAM&V
MBM
ESC Objectives
Revenue stream timing
Risk appetite
M&V capacity
Commercial models
Project size / replicability
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
• Many different methods available under the ESS
• Most applicable to complex projects is PIAM&V – closely linked to M&V best practice techniques
• Sub methods of PIAM&V are
• Forward Creation (optional annual top up)
• Annual Creation
Project Impact Assessment with Measurement & Verification (PIAM&V)
• PIAM&V Process Summary • Create an M&V Plan • Apply for accreditation or find an ACP • Scope/Install metering • Measure baseline data and generate model • Install project • Measure operating periods • Conduct M&V Analysis to Verify Savings
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Case Study: Measurement Boundary – Refrigeration System
MMM
M
Abattoir(consisting of
freezer rooms, cold storage
etc.)
Condensers
Refrigeration Compressors
M
M
MM
Production Output: HSCW
Production Input: Pigs
Electrical Meter (NMI)
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Case Study: Regression Analysis
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Timestamp Daily Energy Consumption (MWh) HSCW (kg)
1/09/2014 3.71 173405.30 2/09/2014 4.99 135952.30 3/09/2014 5.11 135288.30 4/09/2014 4.63 147786.80 5/09/2014 1.67 0.00 6/09/2014 1.86 0.00 7/09/2014 4.60 154601.60 8/09/2014 4.89 171043.30 9/09/2014 4.76 143471.60
10/09/2014 4.59 132748.60 11/09/2014 5.00 158249.20 12/09/2014 1.96 0.00 13/09/2014 1.49 0.00 14/09/2014 4.53 175802.10 15/09/2014 4.27 150670.80 16/09/2014 4.38 159550.30
Regression Statistics Multiple R 0.92790124 R Square 0.86100071 Adjusted R Square 0.85107219 Standard Error 0.51389041 Observations 16
Coefficients Standard Error T-Stat Intercept 1.86607889 0.253656399 7.356719187 X Variable 1 1.7725E-05 1.90335E-06 9.312354123
y = 2E-05x + 1.8661 R² = 0.861
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Wh]
HSCW [kg]
HSCW vs. Electricity Consumption
Case Study: M&V and Financial Outcomes
Project Capital Cost $ 825,000 Annual Energy Savings (MWh) 264 MWh/year
Annual Energy Savings ($) $ 29,000 Simple Payback without ESC creation 28 years Forward Creation Certificate Quantity 1,001 Forward Creation Certificate Revenue $23,000
Simple Payback with ESC creation 27.5 years
• Project drivers included:
– Age of existing system
– Risk to plant operations
– Energy savings
– Additional savings from heat recovery (offset gas consumption not included in scope of M&V)
Even projects that are not primarily for energy efficiency
reasons can benefit from certificate creation.
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Cold Storage Facility Case Study
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22/11/201311/01/20142/03/201421/04/201410/06/201430/07/201418/09/20147/11/201427/12/2014
Tem
pera
ture
(deg
C) a
nd O
pera
ting
Hour
s (hr
s)
Elec
tric
ity C
onsu
mpt
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y)
Date Stamp
Electricity and Independent Variable Relationship
Total Electricity Consumption (MWh) Ambient Temperaure (deg C)
Hours of Operation Project Capital Cost $ 375,000 Annual Energy Savings (MWh) 1,625 MWh/year
Annual Energy Savings ($) $ 146,000 Simple Payback without ESC creation 2.6 years Forward Creation Certificate Quantity 8,257 Forward Creation Certificate Revenue $190,000
Simple Payback with ESC creation 1.1 years
• Cold Storage Facility operating multiple small refrigeration systems
Savings achieved by:
• Improving part load performance:
– Variable head pressure – VSD control of screws – Evaporator VSDs
• Improving Refrigerant quality (ie: reducing contaminants eg: oil, water)
Certificate creation reduced simple payback time by 57%!
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
Ventilation Fan Case Study
Project Capital Cost $ 11,000 Annual Energy Savings (MWh) 148 MWh/year
Annual Energy Savings ($) $ 18,000 Simple Payback without ESC creation 0.6 years (7.2 months) Forward Creation Certificate Quantity 1,666 Forward Creation Certificate Revenue $38,300
Simple Payback with ESC creation 0.2 years (2.4 months)
• Plant workshop requiring ventilation for control of CO levels
Savings achieved by:
• Retrofitting a VSD to the existing fixed speed fan
• Control loop via CO sensors in the workshop
Small project but a big impact on simple payback due to
large certificate return.
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
• Split into two groups
• Discuss and identify:
– Measurement boundary – Metering involved (and the cost) – Independent variables – Measurement time periods – Expected Savings (%)
• Make sure you can justify your answers.
M&V Exercise
Project 1: Commercial building BMS & HVAC Upgrade (controls &
AHUs)
Project 2 Manufacturing site with chilled water for
processing cooling and climate control Chiller replacement (with associated
pumps)
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
• End Consumers and Energy Users:
– Identify and choose an ACP
– Start baseline measurements ASAP
• Consultants, Project Developers:
– Identify and choose an ACP or
– Become an ACP
• Technology & Equipment Suppliers:
– Discussions with ACPs to identify who has an accreditation for your product
Question and Answer Session
Next Steps….
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
More information
OEH Energy Efficient Business Unit
Visit www.environment.nsw.gov.au/business/
Patrick Riakos on 02 8837 6301
patrick.riakos@environment.nsw.gov.au
OEH Markets & Finance Unit
Visit www.environment.nsw.gov.au/business/
Jeremy Tarbox on 02 9995 5158
jeremy.tarbox@environment.nsw.gov.au
PRESENTATION TO ARA | HVACR ENERGY EFFICIENCY SEMINAR - 5 APRIL 2016
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