Environmental Studies

How did We estimate the environmental benefits?

Clean Line Energy Partners commissioned GL Garrad Hassan to run a production simulation study using PROMOD software to determine the emissions and water use reduction impacts as a result of the injection of 3,500 MW of wind power collected from northwest Iowa and the surrounding region via the Rock Island Clean Line into Illinois.

In order to develop a robust view of impacts and benefits, simulations were performed across several possible future market scenarios: business as usual, slow growth, robust economy, and green economy.  Each scenario was evaluated both with and without the Rock Island Project and system operations were compared in order to identify benefits resulting specifically from the inclusion of the Rock Island Project.  For a summary of the methodology and results of the GL Garrad Hassan study, please click here.