Alstom: The New Grid Will be a Constellation of Community Microgrids

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community microgrid

Credit: ESA/Hubble

We tend to describe microgrids as a way to keep the lights on when storms strike. But increasingly microgrids, especially community microgrids, are becoming central to a larger economic and sociological shift to local energy.

The trend could be world-changing, but it certainly will be industry-changing, especially for a company like Alstom, which has its equipment connected to two-thirds of the power flow in the United States.

Alstom expects big things to come from microgrids, nothing short of a transformation in the “macro economic model” for the world, says Jayant Kumar, Alstom’s global smart grid program director.

He foresees the power grid eventually becoming a “constellation of microgrids.”

“Essentially we are headed for a world of tomorrow where the paradigm of energy delivery is changing; it is changing significantly. Generating assets are going to be owned by different stakeholders,” he said in an interview.

But the constellation will be built one star at a time. And one of the stars to watch is a community microgrid being developed at The Navy Yard, a 1,200-acre commercial and industrial complex in Philadelphia.

Alstom is researching and designing the community microgrid system in partnership with the Philadelphia Water Department and PIDC, Philadelphia’s public-private economic development corporation. The project has won a $1.2 million grant from the Department of Energy.

The Navy Yard’s microgrid will be interesting for several reasons, not the least of which is the size of the community it will serve. The facility now encompasses more than 140 buildings, covers 6.5 million square feet and serves more than 10,000 people. Undertaking an expansion, it will eventually more than double its size and serve 30,000 people, including 1,500 new residences.

The facility already houses commercial operations, research and development and industry that demands sophisticated energy delivery, among them the Navy, shipper builder Aker and a data center for Urban Outfitters.

These companies receive their power in an unconventional way, one that paves the way for the evolution of a microgrid. The Navy Yard is not captive to a utilty, but operates as an independent, unregulated distribution grid. This spares the facility from dealing with utility franchise rules, which can sometimes thwart microgrid development.

PDIC, which operates the facility, has been undertaking a $31 million upgrade of the grid. The facility is gearing up for a doubling and possible tripling of its 25-MW peak demand. Part of the larger upgrade, the microgrid is being designed to lower carbon dioxide improve energy efficiency. It will include 6 MW of combined heat and power, over 1 MW of solar/storage and 2 MW of demand response.

Alstom is undertaking a two-year design and test of a microgrid controller prototype at the facility. The controller will be used for islanding, synchronization and reconnection, protection, voltage frequency, power quality management and system resiliency for. Others on the team include Pacific Northwest National Laboratory (California Institute of Energy and Environment  and Washington State University.  The PJM Interconnect and local utility PECO are serving as advisors.

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Elsewhere, Alstom also recently announced that will collaborate on the design, development and deployment of a microgrid  as part of the Singapore Renewable Energy Integration Demonstrator – Singapore (REIDS) initiative.

REIDS is studying microgrids to manage and integrate electricity generated from multiple sources including solar, wind, tidal, diesel, as well as energy storage and power-to-gas solutions.

With Singapore’s Nanyang Technological University, Alstom will  develop microgrid technology to manage power exchanges when the microgrid is connected to the  main grid or or separated from it. NTU will install the system at its EcoCampus and later on the Semakau Landfill, an offshore landfill between the islands Pulau Semakau and Pulau Sakeng, located south of the main island of Singapore.

Kumar says that changing forces worldwide are driving development of community microgrids like these. A need for reliable energy, a concentrated drive toward urbanization, and the need to reduce greenhouse gas emissions, all demand new business models for the power industry.

“Alstom is very dedicated to advance state-of-art technology to help support these different business model as they evolve,” he said.

Keep up on Alstom’s microgrid projects. Subscribe to Microgrid Knowledge’s free newsletter today.

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About Elisa Wood

Elisa Wood is the chief editor of She has been writing about energy for more than three decades for top industry publications. Her work also has been picked up by CNN, the New York Times, Reuters, the Wall Street Journal Online and the Washington Post.


  1. Kevin Normandeau says:

    I would tend to agree that the future of the macrogrid is a network of microgrids.

  2. What I am interested in is the role that a system, comprised of Energy Plus buildings (DEEP energy retrofitted, DC inside, renewables/batteries) coupled with an islandable DC microgrid, might play as the basis for the redesign of the existing grid and the transformation of the customer from a passive consumer to an active prosumer.

    My gut feel is that all the current discussion is taking place within the context of the existing AC grid, is utility centric and with little, if any, thought for the role emerging technologies might play in empowering the consumer. What do we need to do to bring the inherent value proposition of the system described in the first paragraph to the fore?

  3. I’ve been writing about Embedded Micro-grids for some time and renamed my company My Power Station a few years ago. Here is an example of a recent article that appeared in our local Cape Times newspaper in Cape Town:


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