Yeah this is exactly why the new version of the policy (attempts to) incentivize storage in addition to solar, because that makes the excess solar power more useful, by allowing it to be time-shifted to times when there is a dearth instead of an excess (ie. when the sun goes down). The big subsidy of net metering for stand-alone residential solar is no longer beneficial; there are better things for the system at large to be spending its resources on, like storage, and also transmission and distribution improvements.