ROC – These incentives are also known as renewables obligation certificates in the UK. They are handed out to clean energy providers for every megawatt hour(MW/hr) that a wind farm or tidal turbine might produce.
The interesting thing is that these certificates can then be traded, typically with polluting companies such as coal-fired power stations.
These companies have to buy ROC’s commensurate with the amount of carbon dioxide they emit. In the recent past, the ROC’s have been traded at roughly £47 or ($77) each. That’s a significant incentive especially if multiple ROC’s are offered for every MW/hour generated as the current forward price of electricity is around £40 for every MW/hr produced.
