Understanding water-energy-carbon nexus in English and Welsh water industry by assessing eco-productivity of water companies

被引：3

作者：

Maziotis, Alexandros ^{[1
]}

Sala-Garrido, Ramon ^{[2
]}

Mocholi-Arce, Manuel ^{[2
]}

Molinos-Senante, Maria ^{[3
,4
]}

机构：

[1] New York Coll, Dept Business, Athina, Greece

[2] Univ Valencia, Dept Matemat Econ & Empresa, Valencia, Spain

[3] Univ Valladolid, Inst Sustainable Proc, Valladolid, Spain

[4] Univ Valladolid, Deparment Chem Engn & Environm Technol, C Mergelina 4, Valladolid, Spain

来源：

NPJ CLEAN WATER | 2024年 / 7卷 / 01期

关键词：

ENVIRONMENTAL EFFICIENCY; DRINKING-WATER; UTILITIES; PERFORMANCE; SERVICES; UK;

D O I：

10.1038/s41545-024-00420-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Understanding the water-energy-carbon nexus in water supply is essential for water regulators and utilities. This study employs a non-radial Data Envelopment Analysis (DEA) model to assess eco-productivity (ecoP) change, a synthetic indicator that integrates carbon emissions, energy costs, and water delivered. It also evaluates its components-eco-efficiency change and eco-technological change-across water companies in England and Wales from 2011 to 2018. The analysis reveals an annual improvement in ecoP of 1.1%, driven by a 2.1% gain in eco-efficiency but offset by a 1.0% decline in technological advancement. The reduction in GHG emissions emerged as the most significant positive contributor, enhancing ecoP by 3.22% annually, while energy costs detracted ecoP by -0.09%. The results underscore the negative impacts of increased water delivery (-1.74%) and the number of connected properties (-1.27%) on ecoP, highlighting the need for demand management policies.

引用

页数：12

共 54 条

[21] Defining Eco-efficiency: A Case Study on the Finnish Forest Industry [J].