Unless you consider that peak electric demand correlates to daytime usage on the sunniest days of the year (for cooling purposes.) Electric companies are active

Unless you consider that peak electric demand correlates to daytime usage on the sunniest days of the year (for cooling purposes.) Electric companies are actively trying to discourage use during these times by offering a discount for interruptible power (they can remotely shut off power to your hot tub/water heater and other non-critical uses) or offering variable rates (proportional to overall grid demand.) Even if a solar installation merely reduces electric usage, it will almost always correlate to peak times making it immensely valuable to power companies. But I wouldn't expect their PR to confess to this.