Newlincs, a subsidiary of the French company Tiru - itself owned by Electricité de France - was awarded North East Lincolnshire's 25-year waste disposal contract in 1999.
Planning permission for the incinerator was granted in 2001. Construction started the following year and is nearing completion.
The incinerator has an unusually small annual capacity - just 56,000 tonnes. As a condition of the planning permission, all of its waste must come from North East Lincolnshire Council.
The incinerator will operate as a combined heat and power plant, supplying steam as well as electricity to a neighbouring chemical works operated by Synthomer, a subsidiary of Yule Catto.