Data centers and new power in Washtenaw County, MI
2.2 GW of new power is waiting to connect to the grid in Washtenaw County, MI — 7 active requests. Typical wait: 2.5 years. 6 projects are built, 10 withdrawn. Data as of 14 October 2026.
Is one near your house?
We have not mapped a large AI data center inside Washtenaw County itself — but we track the biggest ones nationally, and requests to connect new power here are on the public record.
What is happening with electricity in Washtenaw County
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 Washtenaw County 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Most requests in the US are withdrawn — a developer tests a site and moves on.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 Washtenaw County.
What kind of power is asking to connect
By capacity requested. Data as of 14 October 2026.
All the numbers
23 requests ever filed
Source: interconnection queues published by MISO. Parsed and normalised by Watt Street. Data as of 14 October 2026. A queued project is a request, not a commitment.
Outcome of every request filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 6 | 754 MW | 26.1% |
| Still waiting | 7 | 2.2 GW | 30.4% |
| Withdrawn | 10 | 1.1 GW | 43.5% |
| Paused | 0 | — | 0.0% |
Waiting to connect, by type of power
| Type | Projects | Capacity requested |
|---|---|---|
| Natural gas | 1 | 1.4 GW |
| Solar | 5 | 725 MW |
| Not stated | 1 | 76 MW |
Key dates for projects here
1 dated · next closes 2027-09-10 (MISO)
| Queue | What closes | Closes | Standing |
|---|---|---|---|
| MISO | MISO DPP-2026 Definitive Planning Phase application deadline Attachment X of the tariff and BPM-015. | 2027-09-10 | confirmed 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.
The biggest projects on file
top 15 by size
| Project | Type | Capacity | Status | Filed | Queue |
|---|---|---|---|---|---|
| Majestic-Milan 345 kV Line | Natural gas | 1.4 GW | active | 2025-02 | MISO |
| MAJESTIC - MILAN 345.0kV | Solar | 245 MW | active | 2025-04 | MISO |
| Majestic - Lemoyne 345 kV Line Tap | Solar | 200 MW | completed | 2018-03 | MISO |
| Dorset 120 kV Substation | Wind | 200 MW | withdrawn | 2018-03 | MISO |
| Coventry 230kV | Solar | 200 MW | withdrawn | 2024-04 | MISO |
| Milan - Pioneer 120kV Line Tap | Solar | 189 MW | completed | 2017-06 | MISO |
| Majestic - Milan 345kV Line | Solar | 175 MW | withdrawn | 2019-04 | MISO |
| Majestic - Milan 345 kV Line Tap | Solar | 170 MW | completed | 2019-04 | MISO |
| MAJESTIC - MILAN 345.0kV | Solar | 150 MW | withdrawn | 2024-04 | MISO |
| Line tap on Superior-Wayne 120kV line at 42.275480, -83.628250 | Solar | 150 MW | active | 2024-04 | MISO |
| Dorset 120 kV Substation | Solar | 150 MW | withdrawn | 2019-04 | MISO |
| VOYAGER | Solar | 150 MW | active | 2022-08 | MISO |
| Milan-Pioneer 120kV line tap | Solar | 100 MW | withdrawn | 2017-06 | MISO |
| DORSET | Solar | 100 MW | completed | 2020-06 | MISO |
| 19CVTRY | Solar | 100 MW | active | 2020-12 | MISO |
How Washtenaw County compares
#168 in the US · #6 in MI
Washtenaw County ranks #168 of 1,607 US counties by power waiting to connect, and #6 of 42 in Michigan.
| County | Waiting | Capacity queued |
|---|---|---|
| Monroe County | 7 | 3.9 GW |
| Huron County | 16 | 3.6 GW |
| Livingston County | 6 | 2.3 GW |
| Branch County | 7 | 2.3 GW |
| Van Buren County | 11 | 2.3 GW |
| Saginaw County | 10 | 1.8 GW |
| Genesee County | 4 | 1.4 GW |
| Lenawee County | 8 | 1.4 GW |
Common questions about power in Washtenaw County
How long does it take to get power for a data center in Washtenaw County, MI?
The median wait for a project still in the interconnection queue in Washtenaw County is 2.5 years. Across the US, most large loads are quoted three to seven years depending on the market and whether network upgrades are needed. 6 projects in Washtenaw County have reached energization and 10 were withdrawn, so the withdrawal rate here is a better guide to risk than any single quoted timeline.
How much capacity is available in Washtenaw County, MI?
2.2 GW is currently requested across 7 active interconnection requests, and 754 MW has actually been built. A queued megawatt is a request, not deliverable capacity — most queued projects are never built. For deliverable offtake capacity at a specific substation you need a utility study, not a queue.
Is Washtenaw County, MI a good site for a data center?
This page gives you the power half of that answer: what is queued, what has been energized, how long the wait runs, and which large load interconnection requests are already recorded nearby. The other half — the state policy position, moratoriums and large load tariffs — is on our Michigan policy page.
Where does the data on this page come from?
The interconnection queue published by the transmission providers serving Washtenaw County — MISO — parsed and normalised by Watt Street. Every figure carries the date it was true. Data as of 14 October 2026.
Go deeper on Washtenaw County
The interactive map plots every one of these applications, and a generated county report puts them in a sourced PDF with the date each figure was true on every page.
Open Washtenaw County on the map County reports All of Michigan