Facility Connection RequirementsMay 1, 2005
A “delivery point” is a point of connection between FPL-NED’s transmission system and another entity’s system or facilities which ultimately delivers the power to individual customers’ loads. Two characteristics may be generally used to distinguish delivery points from interconnections: i) the protective schemes of the integrated transmission system are designed to either entirely or partially suspend service to a delivery point by disconnecting a transmission facility that serves such delivery point from the transmission system; ii) power normally flows only in one direction across the delivery point (i.e., from the transmission system to the delivery point), and thus the protective schemes at the delivery point may be designed taking into account this characteristic.
An “interconnection point”, in contrast, is a point of connection between two entities’ respective transmission systems. Interconnection points are normally operated in parallel with the transmission systems such that it is possible for power to flow in either direction. Protection systems for interconnection points are designed to prevent and/or minimize the possibility of an event within one of the systems affecting or cascading into the other system.
III. A. Applicability
This section applies to all interconnections with the FPL-NED transmission system made at 69 kV or greater. This includes utility-to-utility (entity) type interconnections used for power interchanges as well as delivery point type connections used to deliver power to end-users. Subsections C through I apply mainly to transmission interconnections. Subsections J through P apply to delivery point connections. Detailed, project specific requirements will be developed as part of a System Impact Study, a Facilities Study or are referenced in other documents such as the NERC Planning Standards or the National Electrical Safety Code. All requests for transmission service shall be made in accordance with the terms and conditions of the ISO-NE Open Access Transmission Tariff.
The connection of non-FPL-NED facilities to the FPL-NED transmission system should follow the Facilities Connection Process outlined in the ISO-NE Open Access Transmission Tariff. Either FPL-NED or both entities jointly will begin a System Impact Study to determine the effect of the proposed connection on the FPL-NED transmission system. If necessary, a Facilities Study will be initiated to determine the cost of the connection and all FPL-NED equipment improvement needed to accommodate the new connection.
III. C. Configuration
The interconnection point between utilities is typically through a transmission line or lines. The change of ownership is usually at a transmission line structure. The neighboring utility must have an effectively grounded transmission system. Three terminal lines are to be avoided for certain interconnections due to problems discussed in Section I.I.