The Mustang FEED uses 5 m ( 30 wt %) piperazine (PZ) to achieve a design CO 2 capture rate of 90%. The Panda FEED uses 35 wt % MEA for a design capture rate of 85%. A major difference is that Mustang is sized to treat all of the flue gas from the power plant operating at full load (including duct burning) at design ambient conditions. By contrast, Panda treats a fraction of the plant flue gas, with the goal of reducing capital cost and maximizing utilization of the capture unit. The flue gas flow treated at Panda corresponds to approximately 68% of the total emissions when the NGCC plant operates at full load without duct burning (net output 594 MW), or approximately all of the emissions from the plant at 420 MW output. Table lists the flue gas flow rates and CO 2 capture rates in the design case of each unit. † Design case does not include duct burning and is less than maximum net output of 719 MW.