Longi Solar – Bogang Dong – 2025

Summary

Bogang Dong focused on the water footprint of hydrogen and photovoltaic products, analyzing EU regulations, certification standards, and client requirements to provide recommendations for corporate disclosure practices.

Goals

Understand the evolution of EU water footprint regulations and reporting frameworks (ISO 14046, CSRD/ESRS E3, ESPR). Examine the role of certification standards and eco-labels (EPD, CertifHy, EU Ecolabel, Blue Angel) in water use disclosure. Investigate European companies? ESG reports, tender documents, and cooperation frameworks to identify their expectations on water resource management. Benchmark leading companies (e.g., Enel, EDF, Siemens Energy, Shell) to extract best practices in water footprint disclosure.

Solutions

1. Conducted a systematic review of regulations, certification standards, and client documents.
2. Built comparative tables and reports summarizing water footprint requirements across policies, labels, and industry practices.
3. Created a regulation-certification-client-driver chain to clarify disclosure pathways for hydrogen and photovoltaic products.
4.Developed recommendations for improving LONGi’s water footprint disclosure strategy aligned with EU trends.

Potential Impact

Clarified how regulatory pressure, evolving certification schemes, and customer preferences jointly shape disclosure obligations. Provided actionable insights to strengthen corporate ESG reporting and prepare for future product passports. Enhanced understanding of water footprint management in renewable energy industries, bridging research and corporate application.