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So far Anatoli Naoumov has created 127 blog entries.

50 ways to waste energy in your business

Our UK colleague Vilnis Vesma produced a funny article on how to waste energy. I republish it with his permission. Please note invitation to training at the end.   This article is based on something Vilnis Vesma produced for a group of energy champions that he had been training. It was intended as a [...]

How to prevent plant stoppage through energy management

A mere 1 month after an Energy Management Information System (EMIS) project was postponed ‘due to other priorities’ our client’s plant has stopped for 3 days. About $500,000 lost in pre-holidays food product sales. Not to count costs of avoidable urgent repairs and value of lost trust from clients. Why did plant stop? Boiler [...]

Energy management must start with “why”, not with “what”

Effective energy management starts with management, not with engineering. 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 on the basis of simple payback, like as if [...]

Use of simple payback hides risks of energy projects

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

Exact energy savings number is likely false

Every time I hear somebody say "project saved $12,345.67" I look if person's nose has grown a bit. Obviously such person does not understand the first thing about savings: energy savings is an avoided consumption, consumption that did not happen, nobody can measure something that did not happened. Energy savings are never exact, always [...]

Math will not protect you from mistakes in estimating energy savings

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 calculations, statistical analysis or even artificial intelligence, if result does not make engineering sense [...]

Use of average electricity cost can fail your project for CFO

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 [...]

Small deviations from predicted energy consumption may hide big issues

When a baseline built over a certain period has R2=95%, it means that baseline formula accurately predicts actual consumption in 95% of cases within 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 or [...]

Saving energy is like playing golf, somewhat

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

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

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 [...]