Closing the real world fuel consumption gap with Fuel Consumption Meters

The event will give an overview of the real world fuel consumption and CO2 emission gap and look at how OBFCMs can be used to close it.

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Although said to be the most ambitious in the world, the EU’s CO2 emission standards for cars have been – and continue to be – hamstrung by their inability to deliver CO2 reductions in the real world. Up to now, almost half the emissions savings achieved on paper by new vehicles in the EU since 2001 have only been managed in the lab. As the EU strives to become carbon neutral by 2050, closing this gap must now be a top priority.

In an attempt to solve this, the Commission will begin the compulsory collection of real world CO2 emissions, fuel and energy consumption recorded from so-called on-board fuel consumption meters (OBFCM) starting in 2021, and is currently preparing the relevant implementing legislation to this end. If designed and implemented well, this will provide the Commission with the necessary data to monitor the gap and move towards a regulatory framework which prioritises real world, not just laboratory based compliance.

At a timely moment in the legislative process, this event aims to provide an overview of the real world fuel consumption and CO2 emission gap in the EU, with a focus on plug in hybrid vehicles (PHEVs), and will look at how OBFCMs can be used to close this gap and increase transparency of how PHEVs actually perform in the real world.

The webinar will bring together speakers from Deutsche Umwelthilfe (DUH), the Fraunhofer Institute for Systems and Innovation (ISI), Transport & Environment (T&E), TÜV NORD and others.


  • 14:00 – 14:05 Welcome
  • 14:05 – 14:20 The real world fuel consumption gap: the case of PHEVs Dorothee Saar, Head of Transport and Air Quality, DUH
  • 14:20 – 14.30 Addressing the fuel consumption gap of PHEVs through OBFCMs Patrick Plötz, Coordinator of Business Unit Energy Economy, Fraunhofer ISI
  • 14.30 – 14.40 Monitoring vehicles through OBFCMs: how does it work in practice? Dipl.-Ing. Helge Schmidt, TÜV NORD
  • 14.40 – 14.50 OBFCM and EU legislation: what’s at stake and what do we need? Alex Keynes, Clean Vehicles Manager, Transport & Environment
  • 14.50 – 15.20 Discussion and Q&A

Presentation and documentation

Event slides

Hintergrundpapier Plug-in-Hybride

CO2-Messungen im realen Fahrbetrieb

The event is hosted by Get Real, which is a joint project of Deutsche Umwelthilfe and Transport & Environment, funded under the LIFE program of the European Commission.