## Declared Net Capacity in Mega Watts Electrical

If a nuke units has a DNC of 1000 MWe, is this capacity per sec, hour, day, or year???

I'm "assuming" this capacity is per hour but then again a Watt is a unit of seconds.

In other words, If a nuke unit has declared net capacity (DNC) of 1000 MWe, how long would the unit have to run at 100% capacity before it actually supplied a 1000 MWe to the switchyard?

Any reference material that answers this question is greatly appreciated - NRC/ IAEA or the likes.

Thanks
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 Quote by MastersBound If a nuke units has a DNC of 1000 MWe, is this capacity per sec, hour, day, or year??? I'm "assuming" this capacity is per hour but then again a Watt is a unit of seconds. In other words, If a nuke unit has declared net capacity (DNC) of 1000 MWe, how long would the unit have to run at 100% capacity before it actually supplied a 1000 MWe to the switchyard? Any reference material that answers this question is greatly appreciated - NRC/ IAEA or the likes. Thanks
1 W = 1 J/s. Watt is a unit of power, Joule is a unit of energy. Power is just the rate of energy per unit time.

With a DNC 1000 MWe (or 1 GWe) unit is expected to produce 1 GWe of electrical energy (net) with the unit at full rated (thermal) end and all equipment running. A 1 GWe unit will use about 50 MWe for pumps and various electrical systems on site, so there is also gross capacity. The net electrical generation is what can be sold on the grid to generate revenue.

The supply from generator to switchyard is more or less instantaneous.

http://www-pub.iaea.org/mtcd/publica...ds2-26_web.pdf

The NRC website refers to Net Electric (Energy) Generation