Solar Energy
Why rooftop solar users should pay to maintain the grid

To the editor: Evan Gillespie fails to point out some important reasons the California Public Utilities Commission might rework a rate structure that he says protects those who use the least amount of energy. ("PUC may short-circuit California's fair, progressive electricity rate policy," op-ed, May 18) First, the viability of rooftop solar depends on the same wires and power plants that serve customers without solar. If rooftop solar customers don't pay for part of it, the difference has to be made up by everyone else. Second, with solar power there can be too much of a good thing. Right now there are periods when the amount of solar energy and certain other supply...