Market based electricity is all electricity for which your company has specific emission data from the electricity provider. If there is no specific data available, the electricity should be accounted for as location based electricity.

On NIVI you can choose between different data sources for market based values:

1. Energy attribute certificates or equivalent instruments (unbundled, bundled with electricity, conveyed in a contract for electricity, or delivered by a utility) have the highest precision but require renewable energy certificate (US), generator declaration (UK), guarantee of origin (EU) or similar proof of data. The emissions factors are provided by user.
2. Contract, such as power purchase agreements (PPAs) and contracts from specified sources, where electricity attribute certificates do not exist or are not required for a usage claim. This data has the second highest precision and require contractual agreements with the suppliers where the emissions are specified. The emissions factors are provided by user.
3. Supplier/Utility emission rates, such as standard product offer or a different product (e.g. a renewable energy product or tariff), and that are disclosed (preferably publicly) according to best available information. The data preciseness is average though still require emissions data disclosed by the specific energy provider, however, the data may not be targeted and is average for the market. The emissions factors are provided by user.
4. Residual mix (subnational or national) that uses energy production data and factors out voluntary purchases. Calculated by each EU country under RE-DISS project. The emissions factors are provided by user