Cordova, Alaska, & NREL Push The Envelope Of Microgrid Design
then built a virtual “superlab” that synced assets at both laboratories for live, remote experimentation. This gave Cordova the confidence it needed to update its microgrid management.
“These older hydropower plants don’t really have design data, so we have to use operational data instead and supplement it with machine learning,” Panwar explained. “It’s important to model the plants in detail because the sensitivity to operations becomes greater as the system becomes more complex—even to the extent that water deflects off the turbine is important.”
Technology transfer is another major outcome of the project. Metering infrastructure and lithium-ion batteries are commonly administered solutions for microgrids, and now there exists an example for remote resilience. Cordova’s microgrid deployment has been documented—including the microgrid controls, cybersecurity plans, digital twin, project design, and integrated team process—in published articles by participating laboratories and universities.
The RADIANCE project emphasized that lesson to an extreme by bringing operations into a digital twin environment, where the cooperative and researchers could grasp the sophistication of microgrid management. To facilitate a smooth handoff of technology, the RADIANCE project brought technology vendors into contact with a community where their products are deployed and engaged customers about improvements to the electric system.
Digital real-time simulators allowed NREL engineers to design a digital twin of Cordova’s microgrid. Photo by Joe DelNero, NREL
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