DISPATCH CONTROL

Dear Paul,

First of all, sorry if I'm asking so many things this week. You are really helping me understand how SAM works and also how this system do. I really appreciate your help.

Now I'm trying to see how "dispatch control" could affect my system (System control/Dispatch control). I've coppied the "Generic Summer Peak" schedule from the "TOD Factors" page, but I'm trying to understand how "Turbine Output Fraction" could improve the permorfance. I supposed it just multiply the turbine energy output for a period of time, but when would I need to do this?

Sorry if I'm not being precise, and thanks again for your help.
Javier.

Hi Javier,

You can use the turbine output fraction to control the output level of the power cycle relative to its design point. For example, you might want to allow the output to be slightly more than its design point during periods of high solar resource to maximize revenue, or you might want to limit the output during times when the plant's operation is constrained by outside factors.

Best regards,
Paul.

Hi Paul,

Thanks for your answer.
And if, for example, in winter I want to priorize the thermal storage during light hours in order to have enough energy production during night demand peak (7-10pm)? May I use, for this period, a 0.95 factor (approx) for example?

Thank you very much,
Javier

Hi Javier,

Reducing the turbine output fraction with "storage dispatch fraction with solar" set to one for daytime hours should result in more energy delivered to storage during the day.

You can read more about the TES dispatch control inputs in the Help topic CSP Parabolic Trough, Physical Trough Model, Thermal Storage.

Best regards,
Paul.