The capacity of the WTE plants built in earlier years was generally less than 800 tons/day (725 tonnes/day). However, recent WTE plants are larger, typically over 1000 tons/day (907 tonnes/day). The capacity of a single line within a plant has also increased, from the 200 tons/day (181 tonnes/day) in early years to over 500 tons/day (453 tonnes/day) in recent years.