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Founded in 1994 as Zero Emissions Technology and later renamed Powerspan Corp, Powerspan initially provided technology to control particulate emissions from coal-fired, electric power plants. As compliance deadlines of the Clean Air Act Acid Rain Program approached, Powerspan recognized the growing importance of a multi-pollutant solution for controlling emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) in addition to particulate emissions. Standard technology generally addresses each pollutant individually, necessitating the installation of separate, costly devices, requiring large spaces not always available on space-constrained sites that are typical of existing power plants.
Powerspan sought to develop an integrated approach to achieve multi-pollutant reductions at a lower cost than commercially available systems, enabling power plant owners to meet existing and future environmental requirements in a cost-effective manner.