ebm-papst Adds Energy Efficiency Guarantee to NEXAIRA.Fit Retrofit Solution

ebm-papst has introduced an energy efficiency guarantee as part of its NEXAIRA.Fit retrofit solution, aiming to give building operators greater confidence when investing in the modernisation of existing ventilation and HVAC systems. The guarantee is financially backed by Great Lakes Insurance SE, a subsidiary of Munich Re, while the guarantee itself is issued directly by ebm-papst to the customer.

How the guarantee works

The guarantee is based on real-time operating data and analytical methods for evaluating actual system performance. Its stated purpose is to address discrepancies between projected and actual energy savings, thereby making the economic viability of retrofit projects easier to plan. ebm-papst positions the combination of retrofitting, digital monitoring, and the guarantee as a way to reduce investment risk and improve the predictability of return on investment. Continuous data collection is also intended to provide transparency on system operation and lay the groundwork for further optimisation measures.

Retrofit plus digital optimisation

NEXAIRA.Fit pairs the physical modernisation of existing ventilation systems with digital services. During a retrofit, outdated fans are replaced with highly efficient EC fans and connected to the digital NEXAIRA ecosystem, which records operating conditions, energy consumption, and savings potential for continuous evaluation. According to ebm-papst, simply replacing the fan technology can generate energy savings of up to 50 percent. With additional digital optimisation features, savings of up to 70 percent are possible, depending on the application and operating conditions.

Real-world project results

Several completed projects illustrate the potential of the approach:

• Rathaus-Center Pankow, Berlin – 46 percent energy savings achieved through modernisation of the building's HVAC system.
• Deutsche Messe AG, Hanover – application demonstrating highly efficient EC fans combined with digital operational optimisation, including operational reliability.
• Diakonie-Klinikum Stuttgart – further application highlighting the same combination of EC fan technology and digital optimisation.

Rising energy prices and the need to modernise ageing HVAC infrastructure continue to put pressure on building operators, while uncertainty about achievable savings has often complicated investment decisions. The new guarantee element is intended to address that uncertainty directly.

Source: ebm-papst.