The fairly large difference between pricing tiers made solar a no-brainer for the higher-tier customers. SDG&E has been working on flattening the prices across tiers, and it looks like they are succeeding in their efforts. They’re trying to sell it to the higher-tier customers as making the lower-tiered customers “pay their fair share,” and they are trying to get their high-tier customers to lobby on behalf of their efforts to flatten prices.
IMHO, the reason for SDG&E doing this is because as more and more higher-tier customers move toward solar (again, a no-brainer with the high Tier 4 pricing), SDG&E will be getting lower and lower revenues as they’ll only be left with the lower-tier customers and solar customers who will only need lower-tier energy. IOW, this is designed to offset the benefits to customers who will be going to solar, and it will negatively affect lower-tier customers as well.
It’s AB 327. I’ll post more on this later when I get some more time.