Abstract This article generalizes ITU-T Recommendation L.1480 ”Enabling the Net Zero transition: Assessing how the use of information and communication technology solutions impact greenhouse gas emissions of other sectors” by applying it to an action outside the Information and Communication Technology (ICT) field covered by this Recommendation, namely the use of a photovoltaic solar power plant in Poland, including the transition to scale. The study quantifies this use by accounting all greenhouse gases (GHG) emissions consequences (incl. installation, operation and maintenance) over the duration of the action (i.e. the supply and operation of the photovoltaic panels, inverter and associated services), through the construction of a consequence tree and observation of usage behaviors; it thus avoids pushing potentially negative effects outside the scope of the study, like rebound effects (ex.: increase of 10% in electricity consumption) or the consequences of the use of financial gains.
Three main innovations are shown:
• a step-by-step implementation of Recommendation L.1480 to a non-ICT sector,
• the effectiveness of the use of solar panels to reduce GHG emissions in Poland through actual measurement of usage data, in particular data linked to rebound effects,
• the possibility of generalizing this methodological framework to assess GHG emissions changes induced by any action already undertaken (ex post) or under consideration (ex ante).
By assessing all GHG emissions consequences and defining the steps for carrying out this assessment, L.1480 methodology covers all effects on a global scale and reflects real changes. It could thus be applied to assessing GHG emissions consequences of actions and decisions of various kinds: public policies (like carbon storage), corporate investment or household behavior. Moreover, adding other categories of environmental impact (biodiversity, scarcity of natural resources (metals, water), waste and pollution, radiative effect, etc.) would improve the exhaustiveness of effects measurement.
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