With Q1 coming to close with the end of March, it really feels like spring within CAISO from a renewable supply perspective.  Cuts to renewable generation have become a daily occurrence and prices in southern California have reflected the change to spring with single digit (and occasionally negative HL average) LMPs at SP15.  If January and February were dominated by wind curtailments, during March the focus shifted to solar.  The CAISO solar hourly profile shifted up once again (see the 12x24 profiles in Figure 2 below), with the midday peak topping 17 GW during the month, up nearly 2 GW compared to March of 2024, and up 1.2 GW from this past February. 

Figure 1. California Daily Average Temperature and Difference from Normal (F)