Demand (kW) multiple electric utilities, includ3.50 ing rural electric co-ops and investor-owned, municipal, and other public utilities, as indicated 3.00 in figure 6. there were 55 unique instantiations of distinct smart grid 2.50 systems demonstrated at the project sites. the local objectives for 2.00 these systems included improved Control reliability, energy conservation, One-Hour Event Four-Hour Event 1.50 improved efficiency, and demand Two-Hour Event Six-Hour Event One-Hour CPP responsiveness. the demonstraTwo-Hour CPP Four-Hour CPP Six-Hour CPP tion deployed a transactive sys1.00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 tem to coordinate the operation 17 July 2013 of distributed energy resources and addressed regional objectives, including the mitigation of renew- figure 5. A Simulated response to congestion events calibrated from gridSMART field data. able energy intermittency and the flattening of system load. the transactive system coordinated a regional response across figure 7 provides a high-level summary of the transac11 utilities and showed that distributed assets can respond tive-node approach developed for this project. each node dynamically on a wide scale. represents one or more electrically connected resources. BC Hydro WA U. Washington Grand (Customer) Coulee *Seattle (and SCL) Peninsula Light (COOP) Ellensburg *Fox Island (MUNI) MT Flathead Electric (COOP) *Kalispell Island Power (COOP) *Spokane Hot Springs Taft Hydro Power Wind Power Carbon Power Nuclear Power Avista *Pullman (and WSU) Benton (PUD) L. Granite Hanford Little Goose Kennewick L. Monumental Ice Harbor Bonneville Milton-Freewater (MUNI) McNary Bonneville Power *Portland John Day State Line Administration (BPA) Bonneville Portland General Electric *Salem Key Subprojects Garrison North Western Energy *Helena To Colstrip Townsend Idaho Power Lower Valley Power (COOP) Idaho Falls Power *Jackson Palisades PacifiCorp Borah ID OR COB WY NOB (DC Intertie) figure 6. The PNWSGD geographical region, including participants and major generation and transmission. may/june 2016 ieee power & energy magazine 41