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2. Black start - Wikipedia

   en.wikipedia.org/wiki/Black_start

   Toronto during the Northeast blackout of 2003, which required black-starting of generating stations.. A black start is the process of restoring an electric power station, a part of an electric grid or an industrial plant, to operation without relying on the external electric power transmission network to recover from a total or partial shutdown.

3. Diesel generator - Wikipedia

   en.wikipedia.org/wiki/Diesel_generator

   When running, the standby generator may be operated with a specified - e.g. 10% overload that can be tolerated for the expected short running time. The same model generator will carry a higher rating for standby service than it will for continuous duty. Manufacturers give each set a rating based on internationally agreed definitions.

4. Standby generator - Wikipedia

   en.wikipedia.org/wiki/Standby_generator

   Standby generators. A standby generator is a back-up electrical system that operates automatically. [1] Within seconds of a utility outage an automatic transfer switch senses the power loss, commands the generator to start and then transfers the electrical load to the generator. The standby generator begins supplying power to the circuits. [2]

5. National Grid Reserve Service - Wikipedia

   en.wikipedia.org/wiki/National_Grid_Reserve_Service

   This is a service that large power users such as steel works, cold stores, large water pumping stations, can offer to the UK National Grid.These contractors have frequency sensitive relays fitted to the incoming breakers, and these disconnect the load if the system frequency falls beyond a pre-set figure (49.7 Hz).

6. Emergency power system - Wikipedia

   en.wikipedia.org/wiki/Emergency_power_system

   A backup generator for a large apartment building A backup power fuel cell for telecom applications A portable emergency power generator in a shipping container. An emergency power system is an independent source of electrical power that supports important electrical systems on loss of normal power supply.

7. Power purchase agreement - Wikipedia

   en.wikipedia.org/wiki/Power_purchase_agreement

   A power purchase agreement (PPA), or electricity power agreement, is a long-term contract between an electricity generator and a customer, usually an utility, government or company. [ 1 ] [ 2 ] PPAs may last anywhere between 5 and 20 years, during which time the power purchaser buys energy at a pre-negotiated price.