Section 407-324-8 - SPECIAL SCREENING CRITERIA FOR INTERCONNECTION TO DISTRIBUTION NETWORKS The screening criteria required by this Section shall be in addition to the screening criteria required by § 7 of this Chapter.
A. For interconnection of a proposed ICGF to a Spot Network circuit where the generator or Aggregated Generation exceeds five percent (5%) of the Spot Network's maximum load, the generator must utilize a protective scheme including reverse power relays or a comparable function that will ensure that its current flow will not affect the network protective devices.B. For interconnection of a proposed ICGF that utilizes inverter-based protective functions to an Area Network, the Aggregated Generation of exporting generators interconnected on the load side of network protective devices shall not exceed the lesser of ten percent (10%) of the minimum annual load on the network or five hundred kilowatts (500 kW). For a photovoltaic facility without batteries, the ten percent (10%) minimum shall be determined as a function of the minimum load occurring during an off-peak daylight period.C. For interconnection of an ICGF to an Area Network that does not utilize inverter-based protective functions or for inverter-based generators that do not meet the requirements of §8(B) above, the generator must utilize reverse power relays or other protection devices and/or methods that ensure that no export of power from the Interconnection Customer's site, including any inadvertent export (e.g. under fault conditions) that could adversely affect protective devices on the network circuit.65-407 C.M.R. ch. 324, § 8