Transmission

Order No. 8901 requires all transmission providers to amend their existing proforma Open Access Transmission Tariffs (OATT) to either implement a new coordinated, and open transmission planning process “that complies with the planning principles andother requirements in the Final Rule”2 or describe how its existing coordinated regional planning process including tariff language is consistent with or superior to the requirements of the Final Rule. Order No. 890 requires transmission providers to post on their OASIS or websites a strawman proposal for compliance with the nine principlesadopted in the Final Rule.3 Maine Public Service Company (MPS) has prepared the following planning strawman in accordance with the requirements of Order No. 890. We first outline the MPS system characteristics and planning history, then discuss the nine principles in relation to MPS.

General Information

MPS Transmission System Planning Advisory Group

MPS OATT Tariff

MPS Open Access

In order to be eligible to be considered for customer status please complete the application procedure.

MPS Transmission Rates

OASIS

ISO-NE oversees the movement or transfer of energy into, out of or through the New England Control Area according to the Open Access Transmission Tariff (OATT). Access information pertaining to transmission services and the FERC Open Access Same Time Information System (OASIS).

Maine Power Connection

Maine Public Service Company (MPS) and Central Maine Power Company (CMP) are jointly evaluating the feasibility of developing the Maine Power Connection, an electric transmission project that would link the MPS service area directly to Maine's electric grid. Presently, MPS is connected to Maine indirectly through transmission lines that cross into New Brunswick before tying into the international grid that links Maine and New Brunswick. The MPS system is separated by a 25-mile gap between the MPS lines in Houlton and the MEPCO transmission line to southern and central Maine that passes through Haynesville.

The Maine Power Connection project is divided into three phases. The first phase of the project evaluated a transmission interconnection capable of handling current customer load and existing generation in the MPS service territory. Phase one included route analysis from Houlton to Haynesville, also known as the “Bridal Path.” The second phase is studying an interconnection capable of handling up to 800 MW of new wind generation in the MPS service area. The second phase of this project extends interconnections points from Limestone to CMP's transmission system, most likely near Detroit. Finally, CMP and MPS will evaluate the feasibility of a third 345 kV interconnection from northern Maine to eastern Canada.

Generation Interconnection Requests

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