IEEE Power & Energy Magazine - May/June 2016 - 41
multiple electric utilities, includ3.50
ing rural electric co-ops and
investor-owned, municipal, and
other public utilities, as indicated
in figure 6. there were 55 unique
instantiations of distinct smart grid
systems demonstrated at the project sites. the local objectives for
these systems included improved
reliability, energy conservation,
improved efficiency, and demand
responsiveness. the demonstraTwo-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.
*Seattle (and SCL)
*Pullman (and WSU)
Benton (PUD) L. Granite
Bonneville Power *Portland
Portland General Electric
NOB (DC Intertie)
figure 6. The PNWSGD geographical region, including participants and major generation and transmission.
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