Emissions control technologies make up approximately 40 percent of the cost of the new Cliffside units. These technologies will be capable of removing approximately:
- 99.9 percent of the fly ash emissions
- 99 percent of the sulfur dioxide emissions
- 96 percent of the sulfate emissions
- 90 percent of the nitrogen oxide emissions
- 90 percent of the mercury emissions.
The modernization of the Cliffside site will increase the plant output by 80 percent – from 760 megawatts to 1,360 megawatts, and also reduce the site's overall emissions in most categories. This is made possible by the retirements of the much less efficient Cliffside units 1-4, the sulfur dioxide scrubber planned for Cliffside unit 5 and the state-of-the-art emissions controls used with the modern units.