Mysterious PV Curtailment in Outage

[adam-morse]

Hello ReOpt,

I am validating ReOpt's results against another techno-economic software and am seeing behavior in resilient operation that I can't explain. My intent in the exercise is--with PV size fixed--have ReOpt compute the required battery size to get through an outage. I want to find the minimum battery size feasible to serve the critical load (no other generation included).

The results show me ReOpt sizing battery energy over 2x of the other software and I'm unclear why this is happening. What has me stumped is why ReOpt is curtailing the PV in the outage window.

I wonder if not being able to capture the full PV is somehow preventing it from a more optimal sizing. Given tha the battery AC sizing was coming in very low (~100kw). I forced the inverter sizing sufficiently high to swallow the max PV but still saw the same curtailment.

I'm attaching the inputs and outputs from the exercise. The parameters I'm using are 1.5GWh annual load (30% is critical for the outage), 500kW PV, trying to get through one month summer outage.

I am expecting battery size in the 700kWh ballpark but it's spitting out 1.7MWh.

Thanks,
Adam

evaluation_inputs.json
evaluation_results.json