The National Football Championship title decider was delayed more than 30 minutes after monitoring equipment detected a power surge and cut the power. That caused half of the lights in the Superdome stadium to go off.
Yesterday, Glasgow-based Aggreko said it was respon-sible for the CBS and inter-national broadcasting compound as well as much of the half-time show, which featured a performance by Beyonce. All of those sections operated with no outages.
Aggreko provided 15 megawatts of electricity, with a crew of 20 on site.
Asterios Satrazemis, president for the Americas at Aggreko, said: "It is always an honour to be part of such a major global sporting event and we are proud the service we provided remained robust."
It is the 23rd year in a row Aggreko has been involved in the Superbowl.
US-based power supplier Entergy Corporation and Superdome management company SMG said they were still investigating why the power had gone off.
Electrical load sensing equipment was said to have detected an abnormality in the power supply. That monitoring equipment then operated as it was meant to and partially cut power to the stadium.
In a joint statement, the companies added: "Back-up generators kicked in immediately as designed. Entergy and SMG subsequently co-ordinated start- up procedures, ensuring full power was safely restored to the Superdome.
"The fault-sensing equipment activated where the Superdome equipment intersects with Entergy's feed into the facility.
"There were no additional issues detected. Entergy and SMG will continue to investigate the root cause of the abnormality."
Caroline de La Soujeole, from broker Seymour Pierce, said: "If anything, this incident serves as a reminder of the need for back-up power at such high-profile sporting events."