Follow-up and Preventive Control of Non-Technical Losses of Energy in C.A. Electricidad de Valencia

Being in the presence of the increase of non technical losses (NTL) at the end of the year 2003, C.A. Electricidad de Valencia (Eleval) designed and implanted new follow up and control mechanisms that contributed to the reduction of the total losses of the company, that led to the reduction of total losses of the company in 8 percentage points in 2 years. Next, these procedures, called Monitoring of Energy Losses by Sectors, Invoicing Analysis, Monitoring of Customers with possible relapse, and Monitoring of Groups of Transibrmers (Energy Totalizers) are described. Additionally, a brief description is made of the follow-up and control, based on the mechanisms mentioned before, as well as the information systems developed and put into practice by Eleval. Finally, the results and conclusions are shown, as a result of the successfiul experience obtained by the company, in this matter.