Lawrence Berkeley Laboratory, Jan. 2017, by Galen Barbose.
https://emp.lbl.gov/publications/putting-potential-rate-impacts

"Concerns about the potential impacts of net-metered PV on retail electricity prices have led to an array of proposals to reform rate structures and net metering rules for solar customers. These proposals have typically been met with a great deal of contention and often absorb substantial time and administrative resources, potentially at the expense of other issues that may ultimately have greater impact on utility ratepayers. Given those tradeoffs, this paper seeks to help regulators, utilities, and other stakeholders gauge how much attention ought to be given to evaluating and addressing the possible effects of distributed solar on retail electricity prices."