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312. INTEGRATING GROUP HETEROGENEITY IN ASSESSING CARBON PERFORMANCE OF WATER COMPANIES: A CASE STUDY FOR ENGLAND AND WALES

Invited abstract in session WD-53: Carbon Taxing and Emissions Controls, stream Sustainable and Resilient Systems.

Wednesday, 14:30-16:00
Room: 8007 (building: 202)

Authors (first author is the speaker)

1. Maria Molinos-senante
2. TRINIDAD GOMEZ
Applied Economics Mathematics, University of Malaga
3. Rafael Caballero
Applied Economics Mathematic, University Malaga
4. Ramon Sala-Garrido
University of Valencia
5. Alexandros Maziotis
Pontificia Universidad Catolica de Chile

Abstract

One of the main challenges that water companies face is to reduce carbon footprint in their transition to carbon neutrality. Past research assessing carbon performance of water companies have mostly ignored heterogeneity among the water companies evaluated. To overcome this limitation, this study employs a parametric metafrontier approach to assess and compare carbon performance of a sample of English and Welsh water companies, embracing water and sewerage companies (WaSCs) and water only companies (WoCs). This method allows for a comparison of the carbon performance of these two types of companies and analyses the impact of environmental variables on their performance. It was evidenced that water treatment complexity, main source of raw water and population density significantly influence carbon performance of water companies. WaSCs were found to be more carbon efficient than WoCs. Moreover, on average WaSCs have improved carbon productivity across years (2011-2020) whereas WoCs have worsened it. The insights gained from this study are highly significant for policymakers focused on transitioning the water industry towards net-zero carbon emissions.

Keywords

Status: accepted


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