Tradable Instruments for Global Renewables (TIGR) is an international renewable energy certificate program operated by APX. Each TIGR certificate represents 1 megawatt-hour (MWh) of electricity generated from a verified renewable source, and is designed for international corporate renewable procurement in markets without a domestic EAC scheme.
Each TIGR certificate documents 1 MWh of verified renewable electricity generation. It records the technology used (wind, solar, hydro, biomass, geothermal), the producing facility, the country of origin, and the production period. TIGR certificates have been used by corporate buyers to substantiate Scope 2 renewable energy claims in markets without a domestic EAC scheme.
TIGR and I-REC serve overlapping purposes: both are international standards for renewable energy certificates in markets without domestic schemes. I-REC, governed by the I-TRACK Foundation, has become the more widely adopted of the two with broader recognition by frameworks such as RE100 and CDP. TIGR is operated by APX. The two systems are tracked in separate registries, and certificates issued under one cannot be used to satisfy claims under the other.
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Tradable Instruments for Global Renewables
