PITTSBURGH, Dec. 18, 2013 /PRNewswire/ -- CONSOL Energy Inc. (NYSE: CNX) announced plans to replace traditional diesel drilling equipment with electric powered equipment during oil and gas development on Pittsburgh International Airport property. The announcement was made during the second and final public workshop held on Tuesday. (Logo: http://photos.prnewswire.com/prnh/20120416/NE87957LOGO) The shift from diesel to electric powered equipment will significantly reduce emissions and noise during development. This will be the first time CONSOL Energy has used electric to drill. "Technology and innovation continue to define the shale opportunity and CONSOL Energy continues to push the envelope to find new and better ways to unlock the potential of this once-in-a-generation opportunity," commented Nicholas J. DeIuliis, president of CONSOL Energy. CONSOL Energy and the Allegheny County Airport Authority (ACAA) also announced that the environmental assessment was submitted to the Federal Aviation Administration (FAA) for review. The environmental assessment (EA) is required by the FAA to identify potential impacts and mitigation related to oil and gas drilling at Pittsburgh International Airport. The environmental assessment process includes public input on the project which will be accepted through December 31, 2013. Comments can be provided through flypittsburgh.com or can be submitted at the final public workshop. The purpose of the final Public Workshop for the EA is to follow up on the workshop that was held in August and present the draft environmental findings of the EA study. The proposed drilling plan outlines six well pad locations and three water impoundments. The plan proposes a total of 45 Marcellus wells, with the future potential to drill Upper Devonian wells. CONSOL Energy is hopeful that this horizon can be built into its operational objectives for the airport project. However, the company will not have clarity on its potential until it begins drilling and can conduct analysis of core testing, which is estimated to occur in third quarter 2014. Any development of the Upper Devonian formation would occur on the existing pad locations and utilize the same infrastructure to maintain operational efficiency, minimize environmental impacts, and maximize production potential.