Lifts/elevators in modern office buildings are burning as much as 36% more energy than previously believed, new research suggests.
The new research - carried out by StepJockey and specialist lift consultants SVM Associates - comes in the wake of a recent government-funded study which found buildings routinely emitting 3.5 times more carbon than they should.
The Smarter Buildings study compared on-site measurements of real lift/elevator energy consumption with predictions from the industry standard for estimating lift/elevator energy use. The study found:
- Lifts/elevators burned 16% to 36% more energy in real-world use than the de facto international standard predicts.
- The most commonly installed lift type – geared traction lifts – were the worst offenders. The gap between predicted and measured energy consumption was 36%.
- Changing working patterns such as flexi-time and hot desking appear to have increased pressure on lift/elevator systems by increasing inter-floor journeys and energy use.
- Energy costs could be significantly mitigated by promoting stair use
The study also shows how diverting people away from lifts through stair promotion schemes can significantly reduce lift/elevator energy costs while simultaneously creating productivity savings and boosting workplace health.
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