Industrial Energy use analysis best practicies and pitfals
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Transcript of Industrial Energy use analysis best practicies and pitfals
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Energy Use Analysis:Value, Pitfalls, Mistakes and
Best Practice
By Anatoli Naoumov, GreenQ Partners
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Objective
Demonstrate how energy use analysis helps engineers
buy, sell and implement more and better energy projects
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Take away message
Proper analysis of energy use will help me Buy/sell energy projects faster and Gain praise, professional satisfaction and good night sleep
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Plan
What is the right tool and why?
What’s in it for me?
How to calculate savings by IPMVP?
How to find new projects?
How not to do analysis?
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When looking at projects, CFO …
Core business
Energy projects
Knows how it works? Yes Nope
Has done it before? Yes You wishHas reliable numbers to prove results? Yes ?Acceptable return 10% 50%
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When looking at projects, CFO …
Core business
Energy projects
Knows how it works? Yes Nope
Has done it before? Yes You wishHas reliable numbers to prove results? Yes ?Acceptable return 10% 50%
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Proper tool …
1. Is as simple as possible, but not simpler2. Links results to business3. Delivers much more value than it costs
Goal-oriented Energy Analysis and Reporting -
GEAR
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EMs: GEAR assures good night sleep
Common approaches to measuring results: “It’s obvious, just look at the Amps” “Accountants will calculate” “Vendor will calculate”
Proper GEAR:
Pre-agreed result assessment procedure
based on data and linked to key business indicators
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Vendors: GEAR helps build business
Win projects on value
Make results count in the Boardroom
Make client happy
Satisfied clients send chequesHappy clients also send referrals
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EMs and Vendors:risks and pains with no right GEAR
Frustratingly long sales cycle
Unconvincing Boardroom presentations
At risk: Satisfaction, recognition, career, job
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Determine reduction by IPMVP
Before implementation: Identify and measure key consumption drivers and consumption
through the same period Build a statistically valid baseline Record all non-measured factors that affect consumption
After: Measure drivers and calculate Expected consumption Measure Actual consumption Check if factors are still the same, else adjust baseline
Reduction = Expected – Actual ±adjustments
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Watch for pitfalls
• Understand accuracy and certainty of statistics-based baseline; agree on them with decision-maker
• Monitor data for human error
• Check dates: production is often recorded later
• Use engineering common sense to validate model
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Demand profile shows possible waste
<1% of time demand
exceeded 450kW
25% of the time demand was under 50kW
40% of the time demand was over
almost 300kW
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Is there a problem?
1-Jan
-10
1-Mar-
10
1-May
-10
1-Jul-
10
1-Sep
-10
1-Nov
-10
1-Jan
-11
1-Mar-
11
1-May
-11
1-Jul-
11
1-Sep
-11
1-Nov
-11
1-Jan
-12
1-Mar-
12
1-May
-12
1-Jul-
12
1-Sep
-12
1-Nov
-12
1-Jan
-13
1-Mar-
13
1-May
-13
1-Jul-
13
1-Sep
-13
1-Nov
-13
1-Jan
-14
1-Mar-
14
1-May
-14
1-Jul-
14
1-Sep
-14 20,000
25,000
30,000
35,000
15.0
20.0
25.0
30.0
35.0
Nat. gas, m3
Ove
n co
nsum
ptio
n, m
3
Con
sum
ptio
n ra
te, m
3 /ton
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CUSUM analysis
April
Baseline
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CUSUM analysis and result
April
Baseline
Oven recalibration
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Result of calibration
1-Jan
-10
1-Mar-
10
1-May
-10
1-Jul-
10
1-Sep
-10
1-Nov
-10
1-Jan
-11
1-Mar-
11
1-May
-11
1-Jul-
11
1-Sep
-11
1-Nov
-11
1-Jan
-12
1-Mar-
12
1-May
-12
1-Jul-
12
1-Sep
-12
1-Nov
-12
1-Jan
-13
1-Mar-
13
1-May
-13
1-Jul-
13
1-Sep
-13
1-Nov
-13
1-Jan
-14
1-Mar-
14
1-May
-14
1-Jul-
14
1-Sep
-14 20,000
25,000
30,000
35,000
15.0
20.0
25.0
30.0
35.0
Nat. gas, m3
After recalibration in Jan 2014 consumption rate dropped below 2010 level
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Value of Energy ManagerNew Plant Manager
$115K per year
CUSU
M, k
Wh
Major retrofit
$240K per year
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How useful is this dashboard?
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Saved a lot of natural gas in 2016?
m3 per unit
2014 1.39
2015 1.54
2016 1.26
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… or not?
2014 (part) 2015 2015 (part)
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Take away message
For a copy of this presentation with notes and hidden slides
please contact Anatoli Naoumov [email protected]
Visit us at www.greenq.ca or call 416-728-7239Subscribe to our blog at www.greenq.ca/blog
Proper GEAR => more business and less hassle
Thank you