Ecodesign – energy-saving potential in pump technology

Pumps currently consume around eleven percent of all the electricity generated in Germany. This means that energy-efficient pumps can make a significant contribution to protecting the environment and supporting the sustainability of a company’s business. The European Union’s Ecodesign Directive addresses this energy-saving potential and provides manufacturers and developers with a set of guidelines for future generations of pumps.



All OSNA products, provided they are covered by EU Regulation No. 547/2012 of June 5, 2012, meet the requirements of the minimum efficiency index ≥ 0.40. They are identified with the ERP2015 logo on our website. The latest generation of pumps consumes about a third less electricity than previous generations of conventional pumps. Based on an electricity price of 8 cents per kilowatt hour, the nationwide savings potential of ecodesign in the pump sector amounts to €1.2 billion per year.




Our 6-point energy saving plan for pump technology

OSNA’s R&D department continues to work on next generation models according to a 6-point plan. Improvements to hydraulics, drives, motors and controls are successively being incorporated into the OSNA product world.


  1. Optimal selection of the most suitable pump to meet your needs using a modern computer pump design program.

  2. High efficiency is ensured by perfectly engineered impellers and pump casings and smooth surfaces of the cast materials (partly made of investment casting). To reduce the typical efficiency losses of cast stainless steel pumps, we can optionally use split rings made of metallic or non-metallic materials.

  3. Impeller trimming to match the pump’s operating point precisely to the customer’s specifications.. The average savings potential here is over 10 %.

  4. Instead of motors according to IE2 and IE3, we also supply motors according to IE4 on request, which increase the savings potential yet further.

  5. Use of a speed controller for varying operating points, making energy savings of up to 60 % possible.

  6. We subject existing pump systems to an energy audit and identify energy saving potentials in cooperation with our customers.


We would be happy to tell you more about our energy-efficient, future-proof pump applications and the potential savings they offer you. Feel free to contact us now for a no-obligation consultation.