What does Renewable Energy Factor measure?

Renewable Energy Factor (REF) is a metric to measure the percentage of renewable energy (RE) versus the total power usage in a data centre. The metric helps to assess carbon emission mitigation. The higher the REF the more sustainable the data centre and diverse its energy sources.

The REF formula = Total Data Centre Energy Consumption (annual in kWh) / the Renewable Energy owned and controlled by the Data Centre (kWh).

The nearer the REF is to 1, the greater the percentage of RE used by the data centre. The metric does not take into account, extra capacity of renewable power generated by the data centre site but not used.