City Water, Light & Power is the supplier of electricity for residents and businesses of Springfield, Illinois. CWLP's Electric Division facilities include the Dallman 4 coal-fired power station, three peaking generators and a small solar installation. Dallman 4 is served by a Selective Catalytic Reduction (SCR) system, which significantly reduce nitrogen oxides (NOx) emissions; sulfur dioxide (SO2) scrubber; and electrostatic precipitators that reduce particulate emissions. This unit is also equipped with: a fabric filter bag house that also aids in particulate emission, and a state-of-the-art cooling tower that eliminates the need to send high-temperature cooling water back into Lake Springfield. At other locations, the Division maintains an operations dispatch center and transmission and distribution (T&D) engineering office; an electric overhead, underground, substation and service office; three peaking turbines; and a number of substations.