Ethanol Producer Magazine
Today, the quest for carbon intensity reduction has plants revisiting combined heat and power (CHP) systems. Siouxland Ethanol in Jackson, Nebraska, recently began generating its own electricity with a CHP system. Much of the payback will come in a lowered carbon intensity score in the California market. When The Andersons doubled capacity at its Albion, Michigan, facility a few years ago, it installed CHP partly to ensure it could maintain the greenhouse gas reduction target required in the U.S. EPA’s efficient producer program.
CHP has been an option for ethanol producers since the early days. But while all plants could utilize the energy efficient systems, cogeneration has been installed in only a fraction. A U.S. DOE database shows 37 ethanol producers with CHP—combustion turbines, boiler/steam turbines and back pressure steam turbines. With a combined capacity of 184.6 megawatts (MW).
Adkins Energy is one of a handful of plants that installed CHP when first built in 2002.