Project no. 305
The Sustainability Calculator
Nov. Feb. Mar. Apr.
Total yearly price [EUR]
Food Travel Home Lifestyle Jointed
J. Sørensen and T. Elmelund
DTU Physics, Technical University of Denmark
The world faces a huge challenge in minimizing the emission of greenhouse gasses. Both
politically and industrially great initiatives are being undertaken to implement renewable
energy technologies on a large scale, improve greener production of various goods, etc.
However, a large contributor to the emission of greenhouse gasses is on a personal level,
where consumer behavior plays a significant role.
This project aims at creating a “sustainability calculator” which utilizes the daily consumption
of a consumer to present a monetarized value of their sustainability profile. This value can
be thought of as a “sustainability fee” which is an estimate of what it would cost for a
consumer to balance out their emission. The sustainability profile is presented in such a way
that the consumer explicitly knows what choices have the largest impact on their
environmental footprint. From the profile, it is evident that the emission is not a fixed number
but rather an interval, which is necessary to clarify as there is a significant/ uncertainty
related to these calculations. The calculator has been developed and tested in collaboration
with Grøn Fremtid and their associated test families, to enable the families to efficiently
lower their emissions through the duration of the test period.
The future prospect of this project is to turn this calculator into a website where the
consumer can see their personal environmental footprint, while creating a profile allows the
consumer to constantly track their improvements. It is believed that this website could
potentially be a very powerful tool for the everyday user to change their consumer behavior
and improve their sustainability profile.
Figure 1: Yearly consumption profile per person in
Figure 2: Test families’ monthly progression per
person in household.