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Training course on energy efficiency in SMEs - engine-sme.eu

Training course on energy efficiency in SMEs - engine-sme.eu

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Example: Compar<strong>in</strong>g <strong>in</strong>vestment<br />

and runn<strong>in</strong>g costs<br />

Purchase cost: 1,650 EURO<br />

Motor size: 20 kW<br />

Motor <strong>efficiency</strong>: 91.7 %<br />

Annual run time: 8,000 hours<br />

Average cost of electricity: 0.07 EURO per kWh<br />

Motor operat<strong>in</strong>g at full load: 100 %<br />

Annual run costs: 13,044<br />

motor cost<br />

Run time = annual run cost<br />

www.eng<strong>in</strong>e-<strong>sme</strong>.<strong>eu</strong><br />

1,650<br />

Run time = = 0.12 years = approximately 46 days<br />

13,044

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