ISO/RTO (independent system operator / regional transmission organization)
An ISO or RTO is an independent organization that operates the high-voltage grid and runs wholesale electricity markets across a region, under oversight from FERC except in ERCOT. Examples include PJM, ERCOT, MISO, SPP, CAISO, NYISO and ISO-NE. Whether a site sits inside one, and which one, shapes market design, transmission planning and how large-load interconnection works.
The full guide · Power & interconnectionISOs, RTOs and Utility Territories in Data Center SitingHow ISOs, RTOs, utility types and state retail rules affect data center siting, who actually connects your load, and what market structure changes for a site.Where ISO/RTO comes up
- Grid regionsData Center Site Selection in MISO
- Grid regionsData Center Site Selection in SPP
- Grid regionsData Center Site Selection in California and CAISO
- Grid regionsData Center Site Selection in the Pacific Northwest
- Guides by roleLarge Data Center Loads: What Utilities and Co-ops Look For
- Site selection by stateData Center Site Selection in Colorado: Xcel’s Large-Load Tariff, Water and Local Rules