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 transformers (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 successful experience obtained by the company, in this matter