ERF – ENERGY RECOVERY FACTOR

Energy Recovery Factor is a metric to quantify the effectiveness of heat recovery and reuse from data centres. Formally it is the ratio of the energy that is reused outside of the data centre to the total energy used by the data centre;

In the context of estimating the maximum achievable ERF for the Nexalus-based solution, the total energy must first be approximated;

Where Pump is the energy required for pumping the water coolant, Power refers to the switchgear and distribution type equipment, lighting being a  general term for peripheral building baseload and IT refers to the energy consumption by the servers for compute purposes.

In an ideal scenario, where all recoverable energy is reused and the pump efficiency is neglected as a first approximation, it will be approximately equate to;

Resulting in: