fix peak RE output in load flow cases

[claytonpbarrows]

• [ ] find the period corresponding to peak load
• [ ] set Pmax to available capacity and Pout for RE generators
• [ ] generate the matpower file
• [ ] load into POWERWORLD
• [ ] save to PSSE

[bennettmcbrendan]

Day ahead peak load period 8/26 at 15:00 Real time peak load period 8/26 at 14:40

[claytonpbarrows]

cd02de8 should fix the issue of over-generation in the load flow cases, but still doesn't include RE generation