An anti-biomass pressure group claims the planned plant will cause 13,000 Dundonians to breathe more polluted air.
Residents Against Tay Turbines (RATTs) formed to oppose the original biomass-plus-turbines plan for the harbour site.
Forth Energy’s £325 million biomass plan, which is out for consultation before being decided by the Scottish Government, would see the woodfuel renewable energy complex built on King George V Wharf in 2017.
The company say it will provide up to 500 jobs during the construction stage, meet more than 80% of Dundee’s electricity needs and provide enough heat for six Ninewells Hospitals.
Although located in the industrial part of the port, its 328ft stack would be visible over much of central Dundee.
RATTs spokeswoman Laura McLean said Forth Energy’s air quality assessment showed 12,748 people will experience a small increase in annual nitrogen dioxide concentrations.
She added: “Any increase in this pollutant in an area which is already listed as an air quality management area…is going to have an even greater adverse effect on public health.
“You only have to ask the doctors at King’s Cross, as we did and their report was quite clear the more air pollution, the more hospital patients.
“Are we really going to allow nearly 13,000 Dundonians to have their health compromised to line the pockets of a few Edinburgh businessmen?
“The bottom line is that our health in Dundee is already compromised by poor quality air and Forth Energy seem unconcerned that they will make this situation worse for nearly 13,000 Dundonians.”