they might -- after all they are buying electricity from other suppliers, so why not from me?<p>The question is more like, why should I be in a privileged position related to these other suppliers, and why should I be able to freely exchange something cheap (off-peak, unpredictable power) for something expensive (peak, on-demand power)? This is of course assuming that my usage of the grid is fully accounted for in fees, otherwise there is a separate issue there.<p>Ultimately, since public utilities are not exactly an investor goldmine, this comes down to the question of how much other electricity consumers should spend to subsidize those with solar installations.