As long as Solar City gets your paperwork on May 1, you have, almost, the same chance is everyone else. As Arnold said,, round 1 incentives will probably go to a lottery system because it will be oversubscribed. Unfortunately, the lottery will prioritize some applications including those located in the Los Department of Water and Power (How did L.A. do that?), those in the West Coast reliability area. Zip codes can be found here:
https://cxpaired with an on-site renewable generator.southerncaliforniaedison.com/static/uploads/files/706/ZipCodeList_SCE_WestLABasin_LRA_0.71028800%201490204817.pdf
Also, energy storage systems paired with an on-site renewable generator and claiming the Investment Tax Credit (ITC) or, if not claiming the ITC, charging a minimum of 75% from the on-site renewable generator.
Information from a SGIP WOrkshop presentation says:
1) If a lottery is conducted, a notification of the results of the lottery are sent to Applicants.
2) Applications that were not selected for funding in the current step through the lottery will be instructed on how to reapply for funding in the next step.