|July 5th, 2012, 09:13 PM||#1|
Join Date: Jun 2007
Location: Cincinnati, Ohio
Likes (Received): 31
Springfield, Ohio: Ohio Edison Mad River Power Plant
The Ohio Edison Mad River power plant in Springfield, Ohio was opened on October 2, 1927 and was dubbed "The Giant of the Miami Valley." Designed by Springfield architect William K. Shilling, the power plant was located at the confluence of Buck Creek and the Mad River.
Then: When the Ohio Edison plant was in operation during its early years.
Later: Prior to demolition, showing the addition of a central smokestack and addition.
The turbine was activated by high pressure steam, directed by nozzles against the blades mounted on the turbine shaft which spun at 3,600 revolutions-per-minute, or 825 miles-per-hour. Attached to the shaft of the turbine was a rotor spinning at the speed of the turbine.*Electricity*was produced when the rotor turned inside sets of heavy coils of copper wire, which produced a current that sent*electricity*out at 12,500 volts to an adjoining substation, where transformers boosted it to 69,000 volts for transmission via power*lines.*A condenser, which used untreated water from the Mad River, was taken in to cool the steam back into nearly pure water which was then fed into the boilers. This created a downward vacuum that helped maintain the flow in the boiler system.
In 1939, a 20,000-kilowatt generator was added, which was followed up with a third unit in 1950. At some point, the building was physically expanded and a 280-foot central stack was constructed.
Then: An aerial of the turbines.
Later: The turbines, while the building is in the process of being demolished.
On May 23, 1973, Ohio Edison was ordered by the federal Environmental Protection Agency to cease any air emission at the Mad River facility by June 24, an order that came after the Ohio Environmental Protection Agency denied four variances for pollution that were sought by Ohio Edison. The state noted that the company failed to submit an approvable compliance schedule to stay within state and federal air regulations. All emission sources, according to the state, must be in compliance by July 1975.*Ohio Edison repeatedly requested a variance to continue to operate the non-compliant boilers until 1978.*The Mad River plant, which provided power for approximately 33% of Springfield, was supposed to be closed on June 24, but variances were granted until 1981.
Demolition on the Mad River plant began in July 2010 and was*completed*later in the year. During the demolition process, the tower was toppled – but undetected cracks left the tower falling in the wrong direction. The stack, which was expected to fall to the east, crashed to the southeast taking down a building housing backup generators and two 12,500-volt power lines. After the demolition was complete, a few generating units for peak use and a substation were left behind on the 45-acre site.
Later: Prior to demolition.
Then: The Ohio Edison was a well oiled machine.
Later: Nearing demolition, the Ohio Edison showed decades of neglect.
Then: The control room, clean and operational.
Later: The control room, at one point bagged to keep out moisture.
Then: Lots of gauges and switches kept the power plant operational.
Later: All tagged with "non operational."
Some other photographs prior to the completion of demolition of Ohio Edison: