CELs (Clean Energy Certificates) are mandatory for participants in the Wholesale Electricity Market and do not provide traceability (Art.3, section XXII, Electricity Industry Law).
GDOs (Guarantees of Origin) certify the generation and injection of energy into the National Electricity System from renewable sources (Directive 2009/28/EC of the European Parliament).
Certificate of Origin (CDO)
Forest management
Sustainable agriculture
Renewable energy generation
Biodiversity conservation
Livestock
Wastewater treatment plants
Organic Waste
Energy generation
Transport fuel
Production of fertilizers, steel, semiconductors, silicon, and other materials.