Trough system power estimates

Hi Paul,

And how is the "PC electrical power output: gross" calculated? it seems to be larger than the: "PC input energy" less the "startup energy".

Regards

Hi Paul,

Thank you for the quick reply.

Are you comparing thermal to electrical energy? in my original claim what I have done is: I went to the tabular data, computed the following:

Manual gross electricity generation= ("PC input energy" - "startup energy" )x0.356

and compared it to the "PC electrical power output: gross" I am obtaining 8% larger value for the gross vs the manual computations which is leading me to believe that there's a certain boiler back-up of 8% being added to the PC input energy.

What do you think

Hi Paul,

Thanks a lot for the above, it helped with all the times except for the startup times.

First question is:

I am using the SAM 2020.11.29 version, startup is still an issue.

At startup, the efficiency is given to be really low. If I use however values of efficiency from the next timestep I seem to get closer values. I'll use your example to illustrate.