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- kWh per good part links the energy bill to what the line produces.<\/li>\n
- A stopped machine keeps consuming: heating, hydraulics, auxiliaries.<\/li>\n
- A line that loses OEE points sees its EnPI worsen.<\/li>\n
- In France, the CEE scheme (fiche IND-UT-134) can fund the measurement, under conditions.<\/li>\n<\/ul>\n<\/div>\n
The bill tells you how much the plant consumes. It does not tell you what a part costs, or how much energy goes out while the machines produce nothing. That is the job of a well-chosen energy performance indicator.<\/p>\n
Energy efficiency starts with a simple definition<\/h2>\n
In Energy efficiency: the levers for industry<\/a> (in French), Acsio Conseil puts it this way: “Energy efficiency means maintaining the same output while consuming less energy.” The article reviews the available levers: energy audits, process modernization, energy management under ISO 50001, heat recovery, insulation, renewable energy. It also lists funding schemes, including French energy savings certificates.<\/p><\/blockquote>\n
The definition already contains the indicator. If the goal is to produce as much with less energy, you need to track energy relative to output, not energy alone.<\/p>\n
kWh per part, the indicator that links energy and production<\/h2>\n
An energy performance indicator, or EnPI, relates consumption to an activity. In production, the most meaningful one is kWh per good part:<\/p>\n
EnPI = energy consumed by the machine (kWh) \u00f7 number of good parts<\/p>\n
The denominator matters. A scrapped part used as much energy as a good one. By dividing by good parts, the EnPI directly captures the quality loss.<\/p>\n
Tracked by machine and by day, this indicator reveals what the monthly bill smooths out: a line that is drifting, a product that uses more energy, a crew that leaves equipment idling.<\/p>\n
![\"Machine](\"https:\/\/teeptrak.com\/wp-content\/uploads\/2026\/10\/teeptrak-backlink-a5-en.png\")
<\/figure>\nEnergy used during downtime, the loss nobody bills for<\/h2>\n
A stopped machine does not consume zero. Hydraulics, heating, compressors, extraction, workstation lighting: part of the consumption continues whether the machine is producing or not.<\/p>\n