COGIX
(Electricity Economic)
Tech
What is COGIX?
The so-called COGIX (COGeneration IndeX) is an indicator for the operating efficiency of CHP-plants, that receive revenues at the wholesale electricity market. It is similar to the spark spread resp. green spark spread including emission costs for greenhouse gases, which is a contribution margin calculated from fuel costs, emission costs and revenues from electricity sales. In the COGIX framework, also the revenues from heat sales of the CHP-plant are considered.