This article assesses the technical and economic effectiveness of an intelligent monitoring and high-frequency de-icing system implemented for the Zarafshan-Muruntau 220 kV overhead transmission corridor. The assessment combines operational interruption data, energy not supplied, incident-recovery expenditure, annual electrical-energy losses, and maintenance costs. A disturbance affecting five technological facilities was associated with an aggregate interrupted load of 125.6 MW, 586.2 MWh of energy not supplied, and an estimated economic loss of 20.8 billion UZS. The sum of facility-specific interruption durations was 19 h 39 min; this is an aggregate exposure indicator and not the duration of one system-wide outage. After implementation, the annual number of incidents decreased from six to two, annual energy losses from 92,000 to 50,000 kWh, and annual operating expenditure from 102.1 to 20.0 million UZS. The corresponding reductions were 66.7%, 45.7%, and 80.4%. Avoided incident-recovery costs amounted to 72.0 million UZS, reduced energy losses to 18.9 million UZS, and reduced operating expenditure to 82.1 million UZS, giving a total annual economic effect of 173.0 million UZS. The calculation boundaries and comparability requirements are explicitly stated.