Data centers and new power in Maryland
3.8 GW of new power is waiting to connect to the grid in Maryland — 19 requests across 22 counties. That is the 42nd largest amount of any state. 98 projects are built, 483 withdrawn. Data as of 14 October 2026.
What is happening with electricity in Maryland
Every new power plant, battery or big customer has to join a waiting list before it can plug into the grid. This is what that list looks like in Maryland right now.
Where every request ever filed here ended up
Most requests in the US are withdrawn — a developer tests a site and moves on. That is normal, not a warning sign for Maryland.
What kind of power is asking to connect
By capacity requested. Data as of 14 October 2026.
All the numbers
605 requests ever filed
Source: the interconnection queues of every transmission provider operating in Maryland. Parsed and normalised by Watt Street. Data as of 14 October 2026. A queued project is a request, not a commitment.
Waiting to connect, by type of power
| Type | Projects | Capacity requested |
|---|---|---|
| Solar | 13 | 1.7 GW |
| Batteries | 4 | 1.2 GW |
| Natural gas | 1 | 854 MW |
| Wind | 1 | 80 MW |
Who runs the waiting list in Maryland
| Grid operator or utility | Requests | Capacity pending |
|---|---|---|
| PJM | 605 | 3.8 GW |
Counties in Maryland
22 with power on the waiting list
Every county with at least five requests on file. Open one to check an address, or see the schools near any mapped data center.
| County | Waiting | Capacity queued | Already built |
|---|---|---|---|
| Prince George's County | 2 | 1.5 GW | 1.6 GW |
| Garrett County | 3 | 675 MW | 340 MW |
| Harford County | 1 | 500 MW | 1.6 GW |
| Montgomery County | 1 | 500 MW | 326 MW |
| Caroline County | 1 | 145 MW | 0 MW |
| Baltimore city | 1 | 135 MW | 184 MW |
| Charles County | 1 | 110 MW | 2.4 GW |
| Allegany County | 1 | 80 MW | 214 MW |
| Anne Arundel County | 1 | 55 MW | 182 MW |
| Kent County | 1 | 45 MW | 0 MW |
| Queen Anne's County | 2 | 24 MW | 195 MW |
| Dorchester County | 2 | 13 MW | 104 MW |
| Wicomico County | 1 | 7 MW | 38 MW |
| Somerset County | 1 | 4 MW | 127 MW |
| Calvert County | 0 | 0 MW | 7.2 GW |
| Cecil County | 0 | 0 MW | 5.8 GW |
| Frederick County | 0 | 0 MW | 58 MW |
| Howard County | 0 | 0 MW | 0 MW |
| St. Mary's County | 0 | 0 MW | 0 MW |
| Talbot County | 0 | 0 MW | 156 MW |
| Washington County | 0 | 0 MW | 46 MW |
| Worcester County | 0 | 0 MW | 12 MW |
Key dates for projects here
no dated windows published
| Queue | What closes | Closes | Standing |
|---|---|---|---|
| PJM | Dominion GS-5 (Virginia SCC PUR-2025-00058) - ESAs signed on or after this date carry the 14-year term From this date the GS-5 large-load tariff carries a 14-year minimum term, alongside the reported 85% of contracted transmission demand minimum and $1… | No date published yet | disputed source |
| FERC | FERC large-load show cause — stakeholder comments on RTO responses Comments on the six RTO/ISO responses to the FPA section 206 show-cause orders of 18 June 2026 (PJM EL26-67, SPP EL26-68, NYISO EL26-69, MISO EL26-70… | No date published yet | unconfirmed source |
| FERC | FERC RM26-4 — generic large-load rulemaking Still at ANOPR stage. | No date published yet | confirmed source |
| FERC | Georgia PSC - Georgia Power must file large-load contracts 30 days before execution A standing obligation rather than a dated one: large-load contracts must be filed with the commission at least 30 days before they are executed. | No date published yet | confirmed source |
A date marked confirmed was checked by a person against the authority's own tariff, order or form page. Anything else is listed so you know it exists, with a link so you can check it yourself. Full calendar.
Live in Maryland?
Check how far the nearest large data center is from your own address. Free, and your address is not stored.