The bill establishes a new provision under W.S. 37-3-119 regarding the apportionment of costs for interstate electric public utilities to Wyoming ratepayers. It mandates that the public service commission must exclude any system costs from rate determinations that do not benefit Wyoming ratepayers. This includes capital costs associated with facilities built to meet electricity service requirements set by other states or entities outside of Wyoming. Additionally, the commission is authorized to approve a reduced apportionment of costs for system costs that serve Wyoming ratepayers but are linked to facilities constructed at a higher cost than alternative electricity sources, provided those alternatives did not meet the necessary service requirements.

The act is set to take effect on July 1, 2024. This legislative change aims to ensure that Wyoming ratepayers are not unfairly burdened with costs that do not provide them with direct benefits, thereby promoting fairer pricing structures for electricity services in the state.