The owner or operator of an EGU complying with this Subpart B by means of Section 225.230(a)(1) or using electrical output (Oi) and complying by means of Section 225.230(b) or (d) or Section 225.232 must monitor gross electrical output of the associated generator(s) in MWh on an hourly basis.
Ill. Admin. Code tit. 35, § 225.263