Cristal is the last wind farm of the 90MW complex of the same name, whose commercial readiness was approved by Aneel.

The other farms are the 30MW Primavera and 30MW São Judas, both of which had been authorised to operate commercially in March.

The whole Siemens turbine-equipped complex, however, is standing idle while it awaits a delayed grid link.

Under Brazilian regulations, power companies start receiving revenue from the government when projects are completed but cannot generate due to lack of connection to the grid.