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About Anatoli Naoumov

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So far Anatoli Naoumov has created 145 blog entries.
16 11, 2020

To be approved an energy project must start with business goals, not with engineering tools

By |2021-07-14T17:54:08-04:00November 16th, 2020|Categories: Energy Efficiency Tips, Energy management|Tags: , , , |0 Comments

To be effective energy management project must start with goals to be achieved, not tools and technologies available. Managing energy has no meaning if it does not contribute to what your plant is doing. However profitable a project is, if it does not contribute to production, quality or safety, it will always be assessed [...]

9 11, 2020

Simple payback hides risks of energy projects

By |2021-07-14T17:39:45-04:00November 9th, 2020|Categories: Energy Efficiency Tips, Energy management|Tags: , , |0 Comments

Simple payback is a misleading financial ratio. Conventional wisdom says that short payback is a sign of a better project. Wrong. The goal of an investment is not to get your money back, but to make invested money make more money with minimum risk. Simple payback does not even consider risk of not getting money [...]

2 11, 2020

Exact energy savings number is always a lie

By |2021-07-14T17:18:56-04:00November 2nd, 2020|Categories: Energy Efficiency Tips, Energy management|Tags: , , |0 Comments

Every time I hear somebody say "project saved $123,456" I look if person's nose has grown a bit. Obviously such person does not understand the first thing about savings: energy savings is consumption that did not happen, nobody can measure something that did not happened. Energy savings are never exact, always an estimate. Always. [...]

25 10, 2020

Math will not protect you from mistakes in calculating energy savings

By |2021-07-14T17:10:26-04:00October 25th, 2020|Categories: Energy management|Tags: , , , |0 Comments

When assessing energy savings, the use of math is not a substitute to engineering common sense. Math is an enhancement tool: if engineer has made in error – math will not correct it; math will make it bigger. Never mind just calculations, statistical analysis or even artificial intelligence, if result does not make engineering [...]

23 10, 2020

Use of average electricity cost can fail your project for CFO

By |2021-07-14T14:10:27-04:00October 23rd, 2020|Categories: Energy management, Energy management education|Tags: , , |0 Comments

Use of average electricity cost can be misleading when assessing financial impact of energy efficiency measures. What counts is the cost of the last kWh used that is comprised off Global Adjustment (Ontario), demand charges (kW) and energy cost. It matters if avoided consumption contributed to consumption during monthly peak demand or not. Faults of [...]

18 10, 2020

Small deviations from baseline may hide big issues or a big bonus

By |2021-07-14T17:01:26-04:00October 18th, 2020|Categories: Energy Efficiency Tips, Energy management|Tags: , , |0 Comments

When a baseline built over a certain period has R2=95%, it means that baseline formula accurately predicts actual consumption in 95% of the time during this period. This does NOT mean that there were no changes during this period. The wrongly predicted 5% of data points may be measurement noise or data collection error [...]

11 10, 2020

Energy performance is like a golf score

By |2021-07-14T16:49:16-04:00October 11th, 2020|Categories: Energy Efficiency Tips, Energy management|Tags: , , , , |0 Comments

Calculating energy savings results is like keeping a golf score.  If you ever been on the green, understanding the meaning of CUSUM will come easy. Baseline - how machine is supposed to work or worked before retrofit - is a par. CUSUM - a cumulative sum of deviations from baseline - is a score. If [...]

9 10, 2020

Energy Efficiency without tears – an energy efficiency encyclopedia – free pdf from the author

By |2020-10-09T10:10:41-04:00October 9th, 2020|Categories: Energy management|Tags: , , |0 Comments

I admire professionals who put public good ahead of personal gain. Niall Enright shares his vast practical experience and practical recommendations on finding and implementing a wide range of energy efficiency projects in his book. Free for all. No strings attached. Here is Niall's email with link to download. Dear Anatoli Naoumov, The central [...]

5 10, 2020

Use of average energy intensity can hide savings or show fake savings

By |2020-10-01T18:19:05-04:00October 5th, 2020|Categories: Energy management, Energy management education|Tags: , , |0 Comments

A common way to determine energy intensity in manufacturing is to divide energy cost by production volume, resulting in kWh per car or m3 per pound of bread. This simplistic approach may hit energy manager where it hurts the most - at evaluation of completed projects. A good well-implemented project may show dismal savings [...]

4 10, 2020

High R2 of baseline model may lead to troubles

By |2021-07-14T16:39:06-04:00October 4th, 2020|Categories: Energy management|Tags: , , |0 Comments

When determining energy consumption baseline through regression analysis, as recommended by best practices, sensible energy managers pick a formula that relies of physics of the process, not a formula that produces the highest correlation (R2) between predicted and measured data. In a vast majority of cases relation between energy consumed and it's driver is [...]

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