Illinois Administrative Code › Title 83 - PUBLIC UTILITIES › Part 410 - STANDARDS OF SERVICE FOR ELECTRIC UTILITIES AND ALTERNATIVE RETAIL ELECTRIC SUPPLIERS › Subpart C - CUSTOMER INFORMATION › Section 410.200 - Corrections and Adjustments for Meter Error

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Whenever any test made by any entity or by the Commission shows a meter to have an
				average error of more than 2%, a correction of the metering data shall be determined
				by the entity providing metering service and that correction shall be conveyed
				within 3 business days to the customer and to other entities involved in billing the
				customer.
b) When a meter is found to
				have an average error of more than 2%, the entity providing metering service shall
				determine the metering data correction using the actual percentage of error as
				determined by the test, not the difference between the allowable error and the error
				found as a result of a test.
c) If the
				meter is found to run faster than allowable, the entity providing metering service
				shall determine the correction to the metering data for that meter. In determining
				the correction it shall be presumed, unless demonstrated otherwise, that the
				inaccuracy has existed for a period of 2 years. This period of presumed inaccuracy
				shall not exceed the time for which records of the current customer's usage
				exist.
d) If the meter is found to be
				slower than allowable, the entity providing metering service shall determine the
				correction to the metering data for that meter. In determining the correction, it
				shall be presumed, unless demonstrated otherwise, that the inaccuracy has existed
				for a period of 1 year prior to the test for small commercial and residential
				customers and 2 years prior to the test for all other customers.
e) In the case of a non-registering meter that has
				been read during the period of non-registration, the entity providing metering
				service shall not determine a correction to metering data for estimated consumption
				extending over more than twice the regular interval between readings.
f) No corrections to metering data for meter error
				shall extend beyond the in-service date of the meter discovered to be in error, nor
				shall any correction be required to extend beyond the date upon which the current
				customer first occupied the premises at which the error is discovered.
g) Whenever an entity or the Commission's
				representative finds that a service watt-hour meter, while in service, exhibits
				creep, the entity shall make an estimate of the registration caused by the creep
				during the period as specified under subsection (c) and shall make a corresponding
				correction in the metering data.
h)
				Billing adjustments
1) For electric utilities. Any
				correction to metering data for over-registration shall be accompanied by an
				adjustment to customer billing by any electric utility that rendered service that is
				affected during the period of adjustment. Corrections made to metering data for
				under-registration may be accompanied by an adjustment to a customer's billing.
				However, if an electric utility is providing metering service, in no case shall an
				adjustment to a customer's billing be made for under-registration if all testing and
				accuracy requirements of this Part have not been met.
2) For entities other than electric utilities. Any
				correction to metering data made by any entity other than an electric utility and
				all records relating to the adjustment of the customer's billing or charges shall be
				retained for at least 2 years.