Pilot Energy Plainspeak

ISO / RTO — Energy Glossary | Pilot Energy

Written by Pilot Energy | May 26, 2026 4:22:18 PM

ISO / RTO

Category: Markets

Independent System Operator / Regional Transmission Organization — the entities that manage the electric grid and operate wholesale electricity markets in competitive regions. Major ISOs/RTOs: PJM, CAISO, MISO, NYISO, ISO-NE, SPP, ERCOT.

Want to put this knowledge to work?

Learn about Energy Procurement Talk to an Advisor