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Which one device accounts for two-thirds of your electricity bill?

A tweet from ABB’s HVAC UK Twitter account caught our eye last week. They pointed out that on an industrial site with an annual electricity bill of £150,000, an average of £100,000 per year can be spent on running electric motors. That’s over 66 per cent of total energy consumption resulting from electric motor operation.

For users of equipment such as pumps, mixers, conveyors and HVAC equipment driven by electric motors, this news needn’t necessarily be bad. ABB followed up by informing its followers that just a 20 per cent reduction in electric motor speed via a variable-speed drive can almost halve energy consumption.


Electric motors without speed control that are running continuously can waste vast quantities of energy and contribute to an annual bill that’s both expensive and avoidable. Variable-speed drives allow a motor-powered process to run at the precise rate required at a given time, meaning that only energy that is being used is expended. This is invaluable in applications such as food processing and textile mills where machines and conveyors need to run at different rates for particular products.

If you’re interested in exploring the potential for making considerable energy savings in your process via ABB Drives, call Gibbons Engineering Group’s Drives Manager Alan Roberts on 07966 468430 or email

Variable-Speed Drives, Electric Motors

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