Spanish Quality of Service Regulation for the Distribution Network

The regulation allows to agree with the customer on better quality Continuity of Service: Zonal By Zone and Province Level of reference Individual By supply point and zone Minimum normative with contract nature The regulation allows to agree with the customer on better quality

Commercial Attention: Quality of the wave: Voltage: V declared ± 7% Frequency: 50 Hz Commercial Attention: Periods for answering customers requests, regarding new supplies

Distribution Zones: The Regulation defines four zones depending on the “density” of supplies. Each zone includes a set of towns in the same province with common characteristics: Urban Zone: > 20.000 supplies or province capital Demi Urban Zone: from 2.000 to 20.000 supplies Rural Concentrated Zone: from 200 to 2.000 supplies Rural Disperse Zone: < 200 supplies and those outside population nuclei

Measure of Continuity (Zonal): Three different indices TIEPI NIEPI Percentile 80 of TIEPI All measure long interruptions (>3 min.) al the MV Level. Measure of Continuity (Individual): Two measures Number of interruptions Length of interruptions

No town may go beyond the 80 percentile of TIEPI two consecutive years Individual Zonal No town may go beyond the 80 percentile of TIEPI two consecutive years

Case of non-compliance Consequences of non-compliance: Zonal Continuity Individual Continuity Quality of the Wave Correction measures in 6 months in most cases. Case of non-compliance Specific plans Possible external funding (up to 50%) Automatic discounts on invoice Aprox: 5 times the non-served energy

Are these measures enough? Penalizations are high enough so that the system tends to the optimum set by the regulator