Nudging Campaign: “Don’t burn your money!”

Green nudging for climate-friendly behavior

In a pilot project in the field of green nudging, we were able to gain practical experience and achieve first successes

Influencing user behavior (so-called nudging) can help reduce CO2 emissions - this also applies to the amount of heat used in tenant households. In a pilot project carried out by LEG's ESG division at the start of the 2021/22 heating season, individual use cases were developed, implemented and evaluated in terms of their effectiveness and costs.

The result showed that poster displays and the mailing of letters with peer comparisons achieved the best ratio of energy savings to costs.

Energy consumption was thus reduced by around 5% (by hanging posters) and 8% (by sending letters with peer comparisons). Since then, these measures have been rolled out and applied on a large scale within LEG.

The pilot project was accompanied by the Hasso Plattner Institute and the University of St. Gallen and accepted for scientific publication.

Key data of the pilot project

  • 432 apartments
    in LEG's portfolio in four clusters
  • Duration:
    October 2021 – April 2022
  • Successful measures:
    5% Energy savings per tenant through posters in hallways: approx. 5%.
    Energy savings per tenant through peer group comparison by letter: approx. 8%.
  • Discarded measures:

    Peer group comparison via protected email (was rarely opened).
    Thermostat design or haptics (e.g., color scale; detents) no or little effect

Recognized by online-, print- and TV-Media: