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Solar STAT Blog

This blog discusses state and local efforts to develop solar markets in the United States. With support from the Energy Department's SunShot Initiative, members of NREL's Solar Technical Assistance Team (STAT) author posts related to events, solar policy analysis, and technical assistance outcomes for the purpose of informing the market in a credible and timely fashion.

Meet a Solar Expert: Caleb Rockenbaugh

September 28, 2015 by Erin Nobler

This STAT Chat podcast features Caleb Rockenbaugh, an engineer for the Technical Assessment and Screening group at the National Renewable Energy Laboratory (NREL). He talks about his role and details several of the projects that he's worked on through the country. Continue reading

Phrase of the Day: Rate Base

September 16, 2015 by Alexandra Aznar, Joyce McClaren

Rate of return regulation is a type of regulation that allows utilities to cover their operating expenses (i.e., variable costs) and ensure a fair rate of return on capital investments. The public utility commission determines the allowable rate of return for each utility. The utility’s rate base is the total value of a utility’s assets (e.g., plant, equipment, working capital, and deductions for accumulated depreciation). Both the rate of return and the rate base are components of the utility’s revenue requirement, which the utility collects from customers in the form of electricity rates. Continue reading