Assessment of the Compliance of Environmental Disclosures by Energy Companies Using GRI Standards with European Sustainability Reporting Standards: A Case Study

Łukasz Matuszak, Ewa Różańska and Elżbieta Izabela Szczepankiewicz ()
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Łukasz Matuszak: Department of Accounting and Financial Audit, Poznań University of Economics and Business, Al. Niepodległości 10, 61-875 Poznań, Poland
Ewa Różańska: Department of Accounting and Financial Audit, Poznań University of Economics and Business, Al. Niepodległości 10, 61-875 Poznań, Poland
Elżbieta Izabela Szczepankiewicz: Department of Accounting and Financial Audit, Poznań University of Economics and Business, Al. Niepodległości 10, 61-875 Poznań, Poland

Sustainability, 2025, vol. 17, issue 8, 1-22

Abstract: The Global Reporting Initiative (GRI) has maintained the world’s most comprehensive and dominant sustainability reporting standards. While primarily voluntary, they were widely used by energy companies, especially in the environmental disclosure area. With the recent introduction of the mandatory European Sustainability Reporting Standards (ESRS), companies may face challenges transitioning from GRI to ESRS. In this context, this study provides a comprehensive analysis of the GRI Standards and the ESRS, focusing on their environmental disclosure requirements (‘E’). The purpose of our study is to evaluate the current level of environmental reporting by Polish energy companies based on GRI Standards, assess their compliance with the ESRS requirements under the ‘E’ pillar, and determine the role of GRI disclosures in facilitating the transition to the new standards. A case study approach was employed, using data manually collected from 2023 reports prepared according to GRI Standards by Polish energy companies. Content analysis and the GRI-ESRS Interoperability Index were applied. The findings reveal notable differences in the application of GRI Standards among the companies. The level of environmental disclosures based on GRI Standards is relatively low compared to ESRS requirements, suggesting that companies will face challenges in setting up systems to meet future reporting requirements. This study provides insights into current and emerging practices in environmental reporting, offering valuable implications for EU energy companies preparing their environmental reports in accordance with ESRS requirements.

Keywords: environmental disclosures; environmental reporting; GRI Standards; ESRS; GRI-ESRS Interoperability Index; CSRD; energy sector companies (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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