Factoring customer-owned generation into forecasting, planning, and operations.
Margarett Jolly (firstname.lastname@example.org) is Con Edison’s distributed generation ombudsperson. David Logsdon (email@example.com) is a distributed generation specialist and Christopher Raup (firstname.lastname@example.org) is manager of state regulatory affairs at Con Edison. The authors acknowledge the contributions of their colleagues Frank Cuomo, Jairo Gomez, Michael Harrington, Martin Heslin, Ahmed Mousa, and Robert Schimmenti.
As with most utilities, Con Edison has long planned its distribution system based on a unidirectional flow of electricity to customers. This design assumption has shaped system controls and analyses, energy markets, and operator training, along with many other aspects of equipment and operations, as well as critical business decisions like rate design and tariff rules. Historically, when customers provided for their own electric energy needs it was either for emergency back-up—for hospitals, water treatment plants, etc.—or for heavy-industry users that already had sophisticated technical operations and on-site expertise. In recent years a growing number of customers are installing, owning, and operating small to medium-sized electric generating systems, generally up to 20 MW in capacity, behind the meter.