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As an example, the smart contract could could calculate carbon footprint of the data center by:
- Sum up the total energy (kWH of electricity) used by the data center,
- Subtract the REC's
- Calculate CO2 emissions from the difference of (1) - (2) using utility-specific emission data
- Subtract carbon offsets
The total carbon footprint could then be divided by the activity metric of the data center, such as the number of U-racks or amount of compute units, storage, and bandwidth. Finally, a token or asset could be issued for each unit of activity to the customers of the data center, so that they could use it in their CO2 accounting.
This calculator could be expanded eventually to cover the full Greenhouse Gas Protocol for data center, so that it could be used to certify a "carbon neutral" data center.