Motors

The overall energy efficiency of pumps is derived from the usage of motors. The EuP Directive states that from June 16th 2011, motors sold in the European Union must meet the IE2 efficiency level.

From January 1st 2015, motors with a rated output of 7.5-375 kW must meet the IE3 efficiency level or meet the IE2 efficiency level and be equipped with a variable frequency drive. From January 1st 2017, motors with a rated output of 0.75-375 kW must meet the IE3 efficiency level or meet the IE2 efficiency level and be equipped with a variable frequency drive.

For circulators, the directive is founded on these assertions:

  • The annual electricity consumption in the EU (EU27) is 1067 TWh per year
  • The estimated electricity consumption in the EU without legislation would be 1252 TWh by 2020 – 20% of this amount is consumption from pump motors
  • The estimated electricity consumption in the EU with legislation would be 1117 TWh by 2020.

This means that the directive implies electricity savings of 135 TWh within the EU by 2020 – or 5% of the EU’s total electricity use, which is similar to the residential electricity use of 83 million people in EU. This equals the estimated CO2 reductions of 54 million tonnes CO2 in the EU (EU27) by 2020


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