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0 pointspydry5y ago0 comments

Do you disagree with Wikipedia's definition?

"Dispatchable plants have varying startup times. The fastest plants to dispatch are hydroelectric power plants and natural gas power plants. For example, the 1,728 MW Dinorwig pumped storage power plant can reach full output in 16 seconds.[4] Although theoretically dispatchable, coal and nuclear thermal plants are designed to run as base load power plants and may take hours or sometimes days to cycle off and then back on again."

https://en.wikipedia.org/wiki/Dispatchable_generation

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VBprogrammer5y ago

From the same article:

"Dispatchable generation refers to sources of electricity that can be dispatched on demand at the request of power grid operators, according to market needs. Dispatchable generators can adjust their power output according to an order.[1] Non-dispatchable renewable energy sources such as wind power and solar photovoltaic (PV) power cannot be controlled by operators."

https://www.nmppenergy.org/feature/dispatchable%20resources

"Dispatchable fuel resources include nuclear, coal and natural gas. These fuel sources are highly reliable because each fuel is a constant supply. These are known as baseload resources."

https://world-nuclear-news.org/Articles/Nuclear-stands-out-a...

"Nuclear stands out as clean, dispatchable firm power, says Kwarteng"

You are confusing dispatchable with flexible.

pydryOP5y ago

>Dispatchable generation refers to sources of electricity that can be dispatched on demand at the request of power grid operators

Precisely. It's not "on demand" if it takes a day to ramp up production and another day to ramp it down. It's on yesterday's demand, which is f***ing useless.

This contrasts with gas peaker plants which can scale up in seconds. These are known as "dispatchable".

>Nuclear stands out as clean, dispatchable firm power, says Kwarteng

Quoting an offhand comment from an idiotic energy minister trying to justify a boondoggle plant on a nuclear propaganda website isn't as convincing as you seem to think it is.

>You are confusing dispatchable with flexible.

You are confusing baseload with dispatchable.

VBprogrammer5y ago

On demand doesn't mean instantly. Even gas peaker plants aren't instant, they can take 15 minutes to warm up and connect to the grid.

If the sun is down no amount of calling up a solar farm will increase output, if the wind isn't blowing or if it's blowing too strongly no amount of pleading will increase the output of an off-shore wind farm. This is because they aren't dispatchable. This is not the case with Nuclear.

Nuclear can do load following, they do it in France. How else do you think they balance a grid which has 70% Nuclear? They use reactors with grey rods which can reduce the reactivity in the reactor without distorting the shape of the reaction.

j / k navigate · click thread line to collapse

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VBprogrammer5y ago

From the same article:

https://www.nmppenergy.org/feature/dispatchable%20resources

"Dispatchable fuel resources include nuclear, coal and natural gas. These fuel sources are highly reliable because each fuel is a constant supply. These are known as baseload resources."

https://world-nuclear-news.org/Articles/Nuclear-stands-out-a...

"Nuclear stands out as clean, dispatchable firm power, says Kwarteng"

You are confusing dispatchable with flexible.

pydryOP5y ago

>Dispatchable generation refers to sources of electricity that can be dispatched on demand at the request of power grid operators

Precisely. It's not "on demand" if it takes a day to ramp up production and another day to ramp it down. It's on yesterday's demand, which is f***ing useless.

This contrasts with gas peaker plants which can scale up in seconds. These are known as "dispatchable".

>Nuclear stands out as clean, dispatchable firm power, says Kwarteng

Quoting an offhand comment from an idiotic energy minister trying to justify a boondoggle plant on a nuclear propaganda website isn't as convincing as you seem to think it is.

>You are confusing dispatchable with flexible.

You are confusing baseload with dispatchable.

VBprogrammer5y ago

On demand doesn't mean instantly. Even gas peaker plants aren't instant, they can take 15 minutes to warm up and connect to the grid.

j / k navigate · click thread line to collapse