Nigg was the site of a crude oil storage and processing depot for oil piped in from the now abandoned
Beatrice oil field in the
Moray Firth and of a major multi-user energy park including a dry dock operated by Global Energy Group. Following the oil boom of the 1970s, the oil fabrication yard at Nigg became extremely busy with many of the skilled workers moving from areas such as
Glasgow. This resulted in what was called "Glasgow colonies" in towns such as
Invergordon and
Alness, with many of the families choosing to make the move permanent. This can be seen even now with some of the residents still possessing a
Glaswegian accent. Since the purchase of the fabrication yard by Global Energy Group in 2011 and with investment from the Scottish Government the area has begun to see a new influx of workers to the area again with the yard having plenty of work in the renewable energy sector and also in oil drilling rig refurbishment. In 2012 Global Energy Group set up a skills academy to create new jobs for residents and young people and this has resulted in a fall in unemployment in the area and a welcome boost to the local economy. In March 2017, Global Energy submitted an application to the Scottish Government requesting the yard be made a private port. The order which was eventually granted, created Nigg Port and gave Global and Nigg Energy Park increased management powers over the quays, wharves, enclosed dry dock, and adjoining land area at Nigg, the ability to maintain and improve the facility through development rights powers, set reasonable charges for facility users, control goods and hazardous substances and manage the security of the port area. It also gives them the right to board vessels moored alongside the port facility or removes vessels, goods, and vehicles within Nigg Port's boundaries. In 2021, SSE approved a £110M investment in a
wind turbine tower factory at the Port of Nigg. In May 2024,
Orbital Marine Power announced Global Energy Group in Nigg as their preferred supplier to manufacture the turbines for Orbital's initial projects in Orkney. Construction is expected to start before the end of the year. == Ferry service ==