# Amazon CMH091 Cosgray Campus Data Center

PJM data center · https://askthegrid.com/assets/facilities/amazon-cmh091-cosgray-campus-data-center--grid-load-aa355f28226e7d36

Amazon's CMH091 campus sits on about 95 acres on the east side of Cosgray Road in Hilliard, Franklin County, Ohio. The city approved four data center buildings, and the EPA air-source record lists the campus as operating. The approved plan includes an AEP switching station and substation on the site, and PJM transmission documents describe a customer at a nearby site requesting 218 MW of peak demand served from the Cosgray 345 kV ring bus. Air and stormwater permits cover the campus; no IT load figure is published.

## Identity and location

- Operating status: operating
- Asset scope: campus
- Location: 4580 - 4640 COSGRAY RD, Hilliard, Franklin County, OH
- Operator: Amazon (exact asset)
- Developer: Amazon Data Services, Inc. (exact asset)
- Owner: AMAZON DATA SERVICES INC (exact asset)

## Power and grid context

- ISO/RTO: PJM
- Electric utility: AEP
- Substation: AEP switching station and substation in the southern portion of the site, per the approved site plan

## Development

- Site area: 104.995 acres
- Buildings: 4

## Compute and operations

- Facility classes: Hyperscale cloud data center

## Sources

- [https://echodata.epa.gov/echo/dfr_rest_services.get_dfr?output=JSON&p_id=110071854352](https://echodata.epa.gov/echo/dfr_rest_services.get_dfr?output=JSON&p_id=110071854352)
- [Hilliard drops appeal on permit for natural gas fuel cells for data center | WOSU Public Media](https://www.wosu.org/politics-government/2026-09-16/hilliard-drops-appeal-on-permit-for-natural-gas-fuel-cells-for-data-center)
- [https://hilliardohio.gov/wp-content/uploads/2022/01/PZ-AGENDA-PACKET-6-9-22.pdf](https://hilliardohio.gov/wp-content/uploads/2022/01/PZ-AGENDA-PACKET-6-9-22.pdf)
- [www.pjm.com](https://www.pjm.com/-/media/committees-groups/committees/teac/2023/20231205/20231205-item-13---aep-supplemental-projects.ashx)
- [Access Restricted](https://www.dispatch.com/story/news/local/hilliard/2020/11/10/hilliard-city-council-authorizes-sale-104-acres-amazon-web-services/6230120002/)
- [https://gis.franklincountyohio.gov/hosting/rest/services/ParcelFeatures/Parcel_Features/FeatureServer/0/query?where=PARCELID%3D'050-011455'&outFields=PARCELID,SITEADDRESS,OWNERNME1,CLASSDSCRP,PRPRTYDSCRP,PRPRTYDSCRP2,PRPRTYDSCRP3&returnGeometry=false&returnCentroid=true&outSR=4326&f=json](https://gis.franklincountyohio.gov/hosting/rest/services/ParcelFeatures/Parcel_Features/FeatureServer/0/query?where=PARCELID%3D'050-011455'&outFields=PARCELID,SITEADDRESS,OWNERNME1,CLASSDSCRP,PRPRTYDSCRP,PRPRTYDSCRP2,PRPRTYDSCRP3&returnGeometry=false&returnCentroid=true&outSR=4326&f=json)
- [https://edocpub.epa.ohio.gov/publicportal/ViewDocument.aspx?docid=2589822](https://edocpub.epa.ohio.gov/publicportal/ViewDocument.aspx?docid=2589822)
- [Franklin County Auditor](https://property.franklincountyauditor.com/_web/datalets/datalet.aspx?mode=profileall&UseSearch=no&pin=05001145500&jur=025&taxyr=2026)

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Canonical page: https://askthegrid.com/assets/facilities/amazon-cmh091-cosgray-campus-data-center--grid-load-aa355f28226e7d36
Profile generated: 2026-11-02T18:58:56.340519Z
Source: Ask the Grid — https://askthegrid.com/