Upper Baker development- a powerhouse containing two turbine-generator units with a total installed capacity of 90.70 MW; downstream fish passage facilities; and appurtenant facilities.

Lower Baker development- a powerhouse containing a single turbine-generator unit with an installed capacity of 79.33 MW; a 750-foot-long, 115-kilovolt (kV) transmission line; upstream fish passage facilities; and appurtenant facilities.

Puget proposes to construct a new auxiliary powerhouse adjacent to the existing powerhouse at the Lower Baker development, and to install two new turbine-generator units with a combined installed capacity of 30 MW.

The total installed capacity at the Lower Baker development would increase from 79.33 to 109.33 MW, bringing the project's total capacity to 200.03 MW. Puget also proposes to upgrade the existing upstream and downstream fish passage facilities and to construct a salmon hatchery at its Sulphur Creek facility near the Upper Baker development.