That remnant of the Harrison Gas Plant is a peak shaving facility that utilizes liquefied petroleum gas (LPG) that is mixed with air (to form LPA) to supplement the natural gas supply during very rare extremely cold hours when gas sendout to meet demand is extraordinarily high. The mix with air is done to bring the approximately 2,000 BTU per cubic foot level of LPG close to that of the 1,020 BTUs of natural gas so it burns properly in customer facilities. It is not unusual for the plant to not be used at all during a typical winter. I believe that PSEG Power, LLC, the fuel provision affiliate (PSE&G for years has been a delivery company only) determined that it was less costly to truck LPG than to maintain the track and utilize rail transportation given the limited need for deliveries.
~Ken :: Fairmont ex-UP/MP C436 MT-14M1 ::
Black River Railroad Historical Trust :: [/url]