Downeast LNG proposes to construct and operate a bi-directional LNG terminal on the banks of the Passamaquoddy Bay on land in the Town of Robbinston, Maine. The project will be capable of processing an average of approximately 450 mmcfd of pipeline-quality natural gas (including fuel and inerts) in the liquefaction mode and 100 mmcfd in the vaporization mode. Although both modes of operations vaporization and liquefaction are not expected to occur simultaneously, the facility will be physically able to do so. The Downeast LNG project will involve liquefying natural gas into LNG to be stored in one 160,000 m3 full containment storage tank. LNG will be imported or exported by LNG carriers that will arrive at the project’s marine terminal via marine transit of Head Harbour Passage. The facility will have the capability to liquefy natural gas from the pipeline system for export as LNG or import LNG and regasify it to send it out into the existing pipeline system which will be modified to allow it to operate in a bi-directional nature.
The Downeast LNG project has been proposed due to the increased natural gas production in North America, specifically drilling productivity gains that have enabled rapid growth in supplies from unconventional, and particularly shale, gas-bearing formations. The export of natural gas as LNG would provide a market solution to allow the further development of these emerging sources of natural gas.
The bi-directional nature of the Project will enable LNG to be imported, vaporized and sent out for delivery to U.S. consumers to alleviate shortages of natural gas during the peak demand months in the winter. The storage capability of the terminal may allow it to also act as a peak–shaving facility during the peak demand periods. In addition, the terminal can be an import terminal with natural gas sendout capacity should current market dynamics shift dramatically in the future.