Glossary by "N"

  • 374

    N-1 Contingency

    Exogenous Event involving Loss of a major line or transformer  

  • 375

    N-2 Contingency

    Exogenous Event involving Coincident loss of two major lines or transformers

  • 376

    National Association of Regulatory Utility Commissioners

    Acronym(s): NARUC

    An advisory council in the United States consisting of members from state utility regulatory agencies in all 50 states, the District of Columbia, Puerto Rico, and the US Virgin Islands. NARUC’s mandate is to “serve the consumer by seeking to improve the quality and effectiveness of public regulation in America.” NARUC also advises state and federal agencies regarding utility-related legislation.

    Source: ESA Technical Working Group
  • 377

    National Electrical Code

    Acronym(s): NEC

    A regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States. The NEC, while having no legally binding regulation as written, can be and often is adopted by states, municipalities and cities in an effort to standardize their enforcement of safe electrical practices within their respective jurisdiction. In some cases, the NEC is amended, altered and may even be rejected in lieu of regional regulations as voted on by the governing bodies of any given locale.

    Source: Wikipedia
  • 378

    Native load

    The end-use customers that the Load-Serving Entity is obligated to serve.

  • 379

    Natural gas

    A mixture of hydrocarbon gases occurring with petroleum deposits, mainly combining methane with varying quantities of ethane, propane, butane and other gases. Used as a fuel and for manufacturing organic compounds. This type of gas generates about 38-percent of the state  

    Source: ESA Technical Working Group
  • 380

    Negative terminal

    The terminal of a battery from which electrons flow, through the load, during cell/battery discharge.

    Source: ESA Technical Working Group
  • 381

    Net actual interchange

    The algebraic sum of all metered interchange over all interconnections between two physically Adjacent Balancing Authority Areas.  

  • 382

    Net energy for load

    Net Balancing Authority Area generation, plus energy received from other Balancing Authority Areas, less energy delivered to Balancing Authority Areas through interchange. It includes Balancing Authority Area losses but excludes energy required for storage at energy storage facilities.

  • 383

    Net metering

    Energy use metering involving measurement of energy used and energy fed into the utility grid by a customer with generation capacity. So, in essence, each unit of energy fed into the grid directly offsets use and cost incurred for one unit of energy purchased from the grid. So a customer that participates in a net metering program may actually produce more energy than needed. In some cases the utility pays the same price for energy from the customer as the customer pays for purchased electricity from the utility. Increasingly, though,  utilities pay a lower price to producers than they receive from customers. Net metering may require two separate meters.

    Source: ESA Technical Working Group
  • 384

    Net scheduled interchange

    The algebraic sum of all Interchange Schedules across a given path or between Balancing Authorities for a given period or instant in time.

  • 385

    Network integration transmission service

    Service that allows an electric transmission customer to integrate, plan, economically dispatch and regulate its network reserves in a manner comparable to that in which the Transmission Owner serves Native Load customers.  

  • 386

    New Brunswick System Operator

    Acronym(s): NBSO

    A not-for-profit independent (Canadian) corporation whose primary responsibilities are to ensure the reliability of the electrical system and to facilitate the development and operation of a competitive electricity market in New Brunswick.

  • 387

    New York Battery and Energy Storage Technology Consortium

    Acronym(s): NY-BEST

    The New York Battery and Energy Storage Technology (NY-BEST

  • 388

    Nominal voltage

    Voltage of a fully charged cell/battery when it is discharged at its rated current.

  • 389

    Non-firm transmission service

    Transmission service that is reserved on an as-available basis and is subject to curtailment or interruption.

  • 390

    Non-spinning Reserve

    Non-Spinning Reserve is off-line generation capacity that can be ramped to capacity and synchronized to the grid within 10 minutes of a dispatch instruction by the ISO, and that is capable of maintaining that output for at least two hours. Non-Spinning Reserve is needed to maintain system frequency stability during emergency conditions.

  • 391

    Nonaqueous batteries

    Cells or batteries which do not contain water, such as those with molten salts or organic electrolytes.

    Source: ESA Technical Working Group
  • 392

    Normal clearing

    A protection system operates as designed and the fault is cleared in the time normally expected with proper functioning of the installed protection systems.

  • 393

    Normal rating

    The rating as defined by the equipment owner that specifies the level of electrical loading, usually expressed in megawatts (MW) or other appropriate units that a system, facility, or element can support or withstand through the daily demand cycles without loss of equipment life.

  • 394

    North American Electric Reliability Corporation

    Acronym(s): NERC

    North American Electric Reliability Corporation (NERC) develops and enforces reliability standards; assesses adequacy annually via a 10-year forecast and winter and summer forecasts; monitors the bulk power system; and educates, trains, and certifies industry personnel. North American Electric Reliability Corporation (NERC) is a self-regulatory organization, subject to oversight by the U.S. Federal Energy Regulatory Commission and governmental authorities in Canada. North American Electric Reliability Corporation (NERC) is a non-government organization which has statutory responsibility to regulate bulk power system users, owners, and operators through the adoption and enforcement of standards for fair, ethical and efficient practices. More specifically; North American Electric Reliability Corporation (NERC) has authority to enforce reliability standards with all users, owners, and operators of the bulk power system in the United States, and makes compliance with those standards mandatory and enforceable.

  • 395

    North American Energy Standards Board

    Acronym(s): NAESB

    An organization that serves as an industry forum for the development and promotion of standards which will lead to a seamless marketplace for wholesale and retail natural gas and electricity, as recognized by its customers, business community, participants, and regulatory entities.

  • 396

    Northeast Power Coordinating Council, Inc.

    Acronym(s): NPCC

    A not-for-profit corporation responsible for promoting and improving the reliability of the international, interconnected bulk power system in Northeastern North America. See also regional entities.

  • 397

    Nuclear power plant

    Generating about 14.5-percent of California