Viridian announced that it has notified authorities that it is to close both facilities. Viridian has warned that the closures will impact on the security of power supplies in Dublin. Viridian issued protective notice to its 40 staff in Huntstown in north Dublin. The decision follows the move by the Commission for Regulation of Utilities to award a contract to one of Viridian's power plants but not the other. The company has argued that it is unviable for it to run one plant on its own. The decision will have no impact on Viridian's retail arm, Energia. Viridian said that its facilities were critical to the supply of 11% of the total number of hours of voltage control and load flow in Dublin last year.