- Founded in 1907
- Fergus Falls, MN
- 501-1000
- otpco.com
- linkedin.com/company/otter-tail-power-company
name | type | Technologies | regions | HQ | |
|---|---|---|---|---|---|
 | Great River Energy | Developer | Solar, Wind, Energy Storage, Other | LATAM & Caribbean | Maple Grove, MN |
 | Minnkota Power Cooperative | Investor | Wind | LATAM & Caribbean | Grand Forks, ND |
 | Montana-Dakota Utilities Co. | Developer | Wind, Other | USA & Canada, LATAM & Caribbean | Bismarck |