GRESB Infrastructure is a global ESG benchmark for infrastructure and real assets, built around the TCFD framework and GHG Protocol. Every year, assets report environmental performance data through GRESB's assessment to give investors a standardised view of ESG risk. The GHG Protocol requires dual reporting of Scope 2 emissions, and GRESB accepts market-based figures. In practice, this means buying and retiring Energy Attribute Certificates, RECs in North America, GOs in Europe, REGOs in the UK, or I-RECs in emerging markets, allows an asset to claim zero-carbon electricity in its GRESB submission. These certificates feed straight into the fund's GRESB Score. Compliance teams have to verify them properly, because a stronger score translates to higher asset valuations and more attention from ESG-focused capital.