GridLiance Heartland Documentation

Access key documents and resources on Transmission Service and OASIS, Formula Rates, and FERC Standards of Conduct to stay compliant and informed.

GridLiance transmission substation grid


Transmission Service Overview

GridLiance Heartland owns and operates facilities under functional control of the Midcontinent Independent System Operator (MISO) as well as outside of MISO. The Open Access Same-time Information System (OASIS) sites are used for customers to request transmission services and to designate and terminate network resources and for the transmission providers to post required information, such as business practices, transfer capability, transmission service products and prices.

Transmission Service and OASIS
for facilities under MISO functional control 

 

GLH (MISO) OASIS 

Tariff (MISO)

 

Transmission Service and OASIS
for facilities not under MISO functional control 

 

GLHB (Non-MISO) OASIS

Tariff (Effective November 1, 2020)


Formula Rates Overview

GridLiance Heartland publishes annual transmission revenue requirement (ATRR) for transmission facilities under MISO functional control (GLH (MISO)) and facilities outside of MISO (GLHB (Non-MISO)).

Formula Rate materials (Including Annual Updates and Informational Filings) for facilities under MISO functional control can be found on the MISO website under the Transmission Owner Rate Data page for GridLiance Heartland.

 


GLHB (Non-MISO) Formula Rate Materials
for Facilities Not in MISO by Rate Year

 

FERC Regulatory Documents (Other Than Annual Updates)
for Facilities Outside of MISO

 

FERC Regulatory Documents (Other Than Annual Updates)
for Facilities in MISO