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  2. Inverter-based resource - Wikipedia

    en.wikipedia.org/wiki/Inverter-based_resource

    An inverter-based resource (IBR) is a source of electricity that is asynchronously connected to the electrical grid via an electronic power converter ("inverter"). The devices in this category, also known as converter interfaced generation ( CIG ), include the variable renewable energy generators (wind, solar) and battery storage power stations ...

  3. Grid-tie inverter - Wikipedia

    en.wikipedia.org/wiki/Grid-tie_inverter

    Inverter for grid-tied solar panel Three-phase grid-tie inverter for large solar panel systems. A grid-tie inverter converts direct current (DC) into an alternating current (AC) suitable for injecting into an electrical power grid, at the same voltage and frequency of that power grid.

  4. Short circuit ratio (electrical grid) - Wikipedia

    en.wikipedia.org/wiki/Short_circuit_ratio...

    In an electrical grid, the short circuit ratio (or SCR) is the ratio of: the short circuit apparent power (SCMVA) in the case of a line-line-line-ground (3LG) fault at the location in the grid where some generator is connected, to: the power rating of the generator itself (GMW).

  5. Design review (U.S. government) - Wikipedia

    en.wikipedia.org/wiki/Design_review_(U.S...

    The PDR demonstrates that the preliminary design meets all system requirements with acceptable risk and within the cost and schedule constraints and establishes the basis for proceeding with detailed design.

  6. Steam and water analysis system - Wikipedia

    en.wikipedia.org/wiki/Steam_and_water_analysis...

    Steam and water analysis system (SWAS) [1] is a system dedicated to the analysis of steam or water.In power stations, it is usually used to analyze boiler steam and water to ensure the water used to generate electricity is clean from impurities which can cause corrosion to any metallic surface, such as in boiler and turbine.

  7. Income-driven repayment - Wikipedia

    en.wikipedia.org/wiki/Income-driven_repayment

    The IBR Plan has different terms and conditions depending on when the student borrowed. If the borrower is a "new borrower" on or after July 1, 2014, then the borrower will have payments that are generally 10% of discretionary income, and forgiveness is provided for after 20 years of qualifying payment. [ 2 ]

  8. Lambda2 method - Wikipedia

    en.wikipedia.org/wiki/Lambda2_method

    The Lambda2 method, or Lambda2 vortex criterion, is a vortex core line detection algorithm that can adequately identify vortices from a three-dimensional fluid velocity field. [1] The Lambda2 method is Galilean invariant , which means it produces the same results when a uniform velocity field is added to the existing velocity field or when the ...

  9. Institute of Boiler and Radiator Manufacturers - Wikipedia

    en.wikipedia.org/wiki/Institute_of_Boiler_and...

    The merger of GAMA and IBR occurred on April 18, 2004. [1] Under the IBR name, GAMA continues to offer regular classes on hydronic heat installation in the Northeastern United States. The IBR is a nationally recognized boiler and radiator certification organization. The IBR was formerly also known as the Hydronics Institute.