Maricopa County, Arizona
Maricopa County, Arizona has 11.6 GW of data centers on record, planned to operating, across 151 records, against 23.9 GW of generation operating inside the county. The queue adds 9.5 GW of planned generation across 38 projects, 2 of them past their listed in-service date.
Maricopa County and its neighbors
Counties shaded by data center MW on record, planned to operating. 5 of its 6 neighboring counties have pages of their own. The rest are in the member database.
Data center records planned, under construction and operating, data as of October 8, 2026.Hover a county for its numbers
of the generation operating in the county is matched by data center MW on record: 11.6 GW of data centers against 23.9 GW of plants, with 9.5 GW more planned.
Data centers by status
151 records, 11.6 GW
The data center pipeline
108 records list a year online or expected, from 2002 to 2031. The largest expected additions are 1.4 GW listed for 2026 and 1.1 GW for 2027. 43 records list no year.
Data center MW by year online or expected
Records not cancelled, by listed year. 2026 onward is planned or under construction.
View as table
| Year | Records | MW |
|---|---|---|
| 2002 | 1 | 4 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 54 |
| 2007 | 2 | 64 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 2 | 18 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 35 |
| 2014 | 0 | 0 |
| 2015 | 3 | 54 |
| 2016 | 1 | 27 |
| 2017 | 2 | 76 |
| 2018 | 4 | 83 |
| 2019 | 0 | 0 |
| 2020 | 3 | 147 |
| 2021 | 3 | 164 |
| 2022 | 3 | 77 |
| 2023 | 4 | 135 |
| 2024 | 10 | 748 |
| 2025 | 22 | 1,817 |
| 2026 | 17 | 1,354 |
| 2027 | 16 | 1,080 |
| 2028 | 8 | 341 |
| 2029 | 3 | 55 |
| 2030 | 1 | 55 |
| 2031 | 1 | 55 |
Who is building in Maricopa
Data center developers by MW on record. Top 6 of 35.
View as table
| Developer | Sites | MW |
|---|---|---|
| Tract | 1 | 1,800 |
| Arizona Land Consulting | 1 | 1,500 |
| QTS | 23 | 1,386 |
| Microsoft | 16 | 912 |
| Aligned | 16 | 788 |
| Stack Infrastructure | 8 | 618 |
Power generation in the county
197 plants operate inside Maricopa County, 23.9 GW. The queue adds 9.5 GW across 38 projects, and 2 of them are past their listed in-service date.
Operating and planned generation by technology
MW in Maricopa County
View as table
| Technology | Status | Projects | MW |
|---|---|---|---|
| Natural Gas | Operating | 76 | 11,641.7 |
| Natural Gas | Planned | 12 | 1,642 |
| Battery Storage | Operating | 27 | 3,502 |
| Battery Storage | Planned | 16 | 4,446.8 |
| Solar | Operating | 75 | 4,207.2 |
| Solar | Planned | 10 | 3,366.1 |
| Nuclear | Operating | 3 | 4,209.6 |
| Hydro | Operating | 14 | 288.2 |
| Landfill Gas | Operating | 2 | 3.2 |
Planned generation by listed in-service year
MW. Years before 2026 are past due.
View as table
| Year | Planned projects | MW |
|---|---|---|
| 2016 | 1 | 20 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 125 |
| 2026 | 5 | 1,180.2 |
| 2027 | 12 | 1,217 |
| 2028 | 9 | 2,264.5 |
| 2029 | 1 | 559.4 |
| 2030 | 9 | 4,088.9 |
Maricopa County against its neighbors
Pinal County has the most data center MW among the neighbors, 3.4 GW, 29% of Maricopa County's. 5 of the 5 have more generation operating than data center MW on record.
| County | Data center records | Data center MW | Operating generation MW | Planned generation MW | Data center MW per MW operating |
|---|---|---|---|---|---|
| Maricopa County this page | 151 | 9,455 | 0.49x | ||
| Pinal County | 2 | 2,272 | 0.69x | ||
| Pima County | 1 | 0 | 0.24x | ||
| Yuma County | 0 | 5,229 | 0x | ||
| La Paz County | 0 | 10,217 | 0x | ||
| Yavapai County | 0 | 0 | 0x |
Data center MW counts records planned, under construction and operating. Generation is inside the county only. Neighbors without a page have fewer than three projects on record.
6 counties shownWhat changed since June 4, 2026
11 projects in Maricopa County moved between the two snapshots. Counts and MW are below; the projects themselves are for members.
Every change in Maricopa County
Project, what changed, technology, MW and the dates that moved, for all 11 changes.
| Project | Change | Technology | MW | Previous date | New date |
|---|---|---|---|---|---|
Rows are hidden on public pages. Members see the project behind each change, its developer and the dates that moved.
Every record in Maricopa County
Campus or project name, developer, status, MW, year and the developer’s contacts, for all 386 records. Filter, sort and export to Excel.
| Project or campus | Developer | Status | MW | Year | Contacts |
|---|---|---|---|---|---|
Rows are hidden on public pages. Members see every field and can export up to 1,000 rows a month on Solo, unlimited on Unlimited.
Get alerts for Maricopa County
We email you when a data center or power project in Maricopa County is added, changes status, signs an interconnection agreement or slips its date. One email per snapshot, only when something changed.
Open every campus, project and contact in Maricopa County.
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