turbine – n. an engine that spins and can be used to produce electricity
chimney – n. a tall structure on a building that allows smoke to rise and escape outside
plant – n. a building or factory where something is made
convert – v. to change from one thing to another
pile – n. a group of things that are put one on top of another
manpower – n. the number of people who are available to work
decade – n. a 10-year period
coal ash – n. waste that remains after coal is burned
groundwater – n. water that is underground