Croke Park is supplied by one main incomer with a MIC of 2400kVA, which is supported by two 800kVA cogeneration generators. In June 2014, €1m was invested in increasing power supply capability to the concession unit upgrades on public levels. This capital investment included the supply and installation of two new 800kVA diesel generators and a synchronising control system. All game related services such as communication services, PA system, dressing rooms, video boards and emergency lighting are run by an in-house generator during event days. Floodlights and media services are powered by independent synchronous generators.