Product and corporate carbon footprint using the compound method based on financial accounts. The case of Osorio wind farms

Sergio Alvarez, María Sosa and Agustín Rubio

Applied Energy, 2015, vol. 139, issue C, 196-204

Abstract: The challenge of developing clean and renewable energy sources is becoming ever more urgent. Over the last decade, the concept of carbon footprint has been used to report direct and indirect greenhouse gas emissions and as a support for sustainable consumption decisions. However, the discrepancies in the approaches based on either the product or corporate carbon footprint can seriously hinder its successful implementation. The so-called compound method based on financial accounts is a tiered hybrid method which enables the calculation of both the product and corporate carbon footprint. This work aims to assess this method as a tool for carbon footprint through its implementation in a comprehensive life-cycle assessment of the Osorio Wind Farms in Brazil. The total cumulative life-cycle emissions are 362.455t CO2eq, representing 18.33gr CO2eq per kWh delivered to the Brazilian national power grid. The difference with regard to previous works derives from its broader scope and different assumptions. In this study the comparable value from wind turbine manufacture, transport and construction is 8.42gr CO2eq per kWh, 56% lower than the mean figure reported by Arvesen and Hertwich (2012). This study includes sources, phases and areas previously unreported in the carbon footprint reviews for the wind power sector. We conclude that the compound method based on financial accounts is a practical method that allows the definition of a more comprehensive goal and scope. Its implementation at Osorio Wind Farms demonstrates the method’s suitability for application in major international projects and institutions interested in closely monitoring their carbon footprint.

Keywords: Consumption-based emissions; Hybrid analysis; MC3; Life-cycle assessment; Scope 3 emissions; Wind power (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:139:y:2015:i:c:p:196-204

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DOI: 10.1016/j.apenergy.2014.11.039

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