1 March 2010 — Constellation Energy said an air emissions flue gas desulfurization project at its coal-fired Brandon Shores Power Plant in Maryland has begun commercial operation.

The nearly $1 billion investment in emissions control equipment will cut the coal-fired power plant’s sulfur dioxide (SO2) emissions by an estimated 95 percent and existing mercury emissions by 90 percent.

Constellation Energy’s clean air program includes additional environmental upgrades at the Brandon Shores plant, including the installation of baghouses to remove particulates, as well as sorbent injection technology, which removes mercury and sulfuric acid mist from the plant’s emissions. Constellation Energy also previously installed a selective catalytic reduction system at Brandon Shores, which lowers nitrogen oxide emissions.