There are no circumstances, other than exemptions, where submetering is an acceptable alternative to individual metering under the constraints of PURPA. Submetering, while giving consumers control over their energy consumption, still retains a primary objection to master metering; namely, that since customers of a master metered utility customer are not customers of a regulated public utility, the Commission is without authority to provide redress where appropriate, such as in cases of service or billing problems.
Utah Admin. Code R746-210-5