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Grid Transformation Plan – Substation Projects
The Grid Transformation Plan consists of projects that work together to improve grid reliability and security. Many of these projects involve work at electric substations.
Voltage Island Mitigation
Voltage islands are single-transformer substations which serve customers and don't have available backup transformers to pick up the electric load in the event of a failure. Mitigating voltage islands means adding additional transformers to current single-transformer substations. This brings redundancy to the grid and reduces outage lengths.
Substation Technology
We are modernizing distribution stations by upgrading certain components that will improve reliability, maintain voltage stability, and increase overall visibility of grid operations. This will help reduce outage response times and integrate renewable energy resources onto the grid.
Safety and Security
We are enhancing physical security at substations to mitigate emerging threats to the energy sector and protect from cyber and physical attacks.
| Project Name | Location | Details |
|---|---|---|
| Arlington Substation | Arlington County |
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| Carver Substation | City of Richmond |
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| Disputanta Substation | Prince George County |
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| Fairfax Substation | City of Fairfax |
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| Grove Avenue Substation | City of Richmond |
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| Hollin Hall Substation | Fairfax County |
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| Mechanicsville Substation | Henrico County |
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| Pendleton Substation | City of Virginia Beach |
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| Thalia Substation | City of Virginia Beach |
We are also upgrading electric transmission lines near Thalia Substation. For more information on that project, please visit DominionEnergy.com/Greenwich. |
| Vienna Substation | Fairfax County and the Town of Vienna |
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| Westcott Substation | Fairfax County |
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