Data centres are pushing microgrids to transmission scale
Serguey Asael Shinder1 min readMicrogrids can do more than keep the lights on when the grid fails: their distributed resources can help utilities manage peak events and voltage during ordinary operation. That was the argument from Jackie Baum, senior team lead for DER integration at the Electric Power Research Institute, at the Building an Advanced Energy Ecosystem Conference in Albuquerque, reported by Utility Dive at https://www.utilitydive.com/news/microgrid-pnm-epri-data-center/831153/.
The size distribution is shifting with the loads driving it. Data centres above 50 MW are pushing typical microgrid sizes up, with some projects now large enough to need a transmission connection. Baum's point to Utility Dive was that the resources supporting those sites could help smooth their own consumption - and that making microgrids part of the everyday system requires utilities and vendors to stop treating every project as bespoke.
What it means
A microgrid large enough to need a transmission connection is not a microgrid in the sense the word was coined for. The original idea was a distribution-level island that could ride through an outage. A facility drawing more than fifty megawatts with its own generation and storage is a generator and a load that happen to share a fence - and the interconnection questions it raises are transmission questions.
"Stop treating each project as bespoke" is the whole barrier stated in one line. Every custom interconnection study, every one-off control scheme, every negotiated operating agreement is engineering time that does not scale, and the queue is already the binding constraint. What turns a technology from a pilot into infrastructure is a standard shape a utility can approve without redesigning it.
⚠️ This is a conference panel as reported, not a study or a filing. No figures for deployed capacity or for the contribution to peak management are given here.