A 2008 proposal details an upgrade to the facilities to begin construction by September 2011. The proposed project would replace the 460 existing wind turbines with 30 new turbines, in two phases. Phase 1 would remove approximately 74 non-operational turbines and install up to fifteen new 1.5 MW GE SLE wind turbines. Phase 2 would remove approximately 384, Vestas V15, 65kW turbines and install an additional fifteen, 1.5 MW GE SLE wind turbines. The proposed project would therefore comprise a total of 30 wind turbines, 330 feet tall.