LCOE shows a negative value

I did a parametric simulation for a parabolic trough system. Input parameters were, solar multiple, TES hrs and number of subsections. when their values are 10.5, 0, and 8 respectively, the LCOE shows a negative value. can any one explin why?

Hello,

That combination of very large solar field relative to the power cycle capacity and no storage does not seem like a realistic design. I suspect that the system is forced to dump large quantities of energy, causing the LCOE to be negative. Also, with the longer header piping runs, I expect the thermal losses are high.

You can verify that by running a simulation for that set of inputs and checking the "annual energy" and "dumped thermal energy" outputs.

Best regards,
Paul.