Activities

Activities

Quality of service

The responsibility of Red Eléctrica is to provide a quality service to society through the efficient management of the operation of the electricity system and the sustainable development of the transmission grid.

The service quality indicators of Red Eléctrica, evaluated based on the availability of the facilities that make up the transmission grid and the interruptions of the electricity supply due to incidents in the grid: energy not supplied and average interruption time, are maintained at levels that demonstrate the correct operation of the grid and highlight the efficiency of the Company as electricity system operator.

Availability of facilities

The non-availability rate indicates the percentage of total time during which transmission lines of Red Eléctrica have not been available for service. The coordination achieved between the disconnections due to construction work and maintenance and the application of predictive maintenance techniques and live working allow very satisfactory transmission quality indexes in terms of security and continuity of supply to be maintained.

Peninsular grid

Annual evolution of the non-availability rate of Red Eléctrica’s transmission grid on the Spanish peninsula.

Annual evolution of the non-availability rate of Red Eléctrica’s transmission grid on the Spanish peninsula.

Note: Classification according to RD 1955/2000.
The total rate of non-availability of the transmission grid does not include non-availability due to force majeure or third party actions.

  2013 2014 2015 2016 2017 (1)
Programmed for preventive and predictive maintenance 0.56 0.62 0.64 0.72 0.76
Programmed for non-maintenance related reasons 1.11 1.03 1.24 0.85 0.83
Not programmed due to corrective maintenance 0.12 0.17 0.18 0.11 0.12
Non-programmed due to random/chance events 0.01 0.00 0.01 0.01 0.01
Not programmed due to force majeure or third party actions 0.31 0.24 0.16 0.19 0.45
Without classification/Not classified 0.00 0.00 0.00 0.00 0.00
TOTAL (2) 1.80 1.82 2.08 1.69 1.72

(1) Provisional data pending audit - in progress.
(2) The total rate of non-availability of the transmission grid does not include non-availability due to force majeure or third party actions.

 

Non-peninsular grid

Annual evolution of the non-availability rate of Red Eléctrica’s transmission grid on the Balearic Islands.

Annual evolution of the non-availability rate of Red Eléctrica’s transmission grid on the Balearic Islands.

Note: Classification according to RD 1955/2000.
In 2010, in compliance with Law 17/2007 Red Eléctrica acquired the non-peninsular assets of the Balearic and Canary Islands. From 2011, the calculation of quality indicators corresponds to the transmission grid owned by Red Eléctrica.
The total rate of non-availability of the transmission grid does not include non-availability due to force majeure or third party actions.

  2013 2014 2015 2016 2017 (1)
Programmed for preventive and predictive maintenance 0.18 0.26 0.80 0.67 0.80
Programmed for non-maintenance related reasons 1.82 1.66 2.29 2.28 1.30
Not programmed due to corrective maintenance 0.03 0.08 0.04 0.11 0.06
Non-programmed due to random/chance events 0.00 0.00 0.01 0.01 0.00
Not programmed due to force majeure or third party actions 0.01 0.02 0.14 0.04 0.00
Without classification 0.00 0.00 0.00 0.00 0.00
Total (2) 2.04 2.00 3.14 3.07 2.16

(1) Provisional data pending audit - in progress.
(2) The total rate of non-availability of the transmission grid does not include non-availability due to force majeure or third party actions.

 
Annual evolution of the non-availability rate of Red Eléctrica’s transmission grid on the Canary Islands.

Annual evolution of the non-availability rate of Red Eléctrica’s transmission grid on the Canary Islands.

Note: Classification according to RD 1955/2000.
In 2010, in compliance with Law 17/2007 Red Eléctrica acquired the non-peninsular assets of the Balearic and Canary Islands. From 2011, the calculation of quality indicators corresponds to the transmission grid owned by Red Eléctrica.
The total rate of non-availability of the transmission grid does not include non-availability due to force majeure or third party actions.

  2013 2014 2015 2016 2017 (1)
Programmed for preventive and predictive maintenance 0.62 0.62 0.65 0.68 0.78
Programmed for non-maintenance related reasons 1.00 0.95 1.20 0.81 1.03
Not programmed due to corrective maintenance 0.07 0.06 1.41 0.45 0.07
Non-programmed due to random/chance events 0.00 0.00 0.00 0.00 0.00
Not programmed due to force majeure or third party actions 0.14 0.23 0.08 0.01 0.01
Without classification 0.00 0.00 0.00 0.00 0.00
Total (2) 1.70 1.63 3.26 1.94 1.88

(1) Provisional data pending audit - in progress.
(2) The total rate of non-availability of the transmission grid does not include non-availability due to force majeure or third party actions.

 

 In 2010, in compliance with Law 17/2007 Red Eléctrica acquired the non-peninsular assets of the Balearic and Canary Islands. From 2011, the calculation of quality indicators corresponds to the transmission grid owned by Red Eléctrica.

Average Interruption Time

Average Interruption Time (AIT) is the relation between the energy not supplied and the average power of the system. It is measured in minutes. The reference value established in current legislation is set at 15 minutes.

Red Eléctrica's peninsular grid

  2013 2014 2015 2016 2017 (1)
Average Interruption Time (AIT) minutes 2.403 0.441 0.112 0.141 0.130

Red Eléctrica's non-peninsular grid

Balearic Islands
  2013 2014 2015 2016 2017 (1)
Average Interruption Time (AIT) minutes 7.366 1.205 2.662 0.027 2.880
Canary Islands
  2013 2014 2015 2016 2017 (1)
Average Interruption Time (AIT) minutes 4.380 9.040 9.078 27.436 2.750

In 2010, in compliance with Law 17/2007 Red Eléctrica acquired the non-peninsular assets of the Balearic and Canary Islands. From 2011, the calculation of quality indicators corresponds to the  transmission grid owned by Red Eléctrica.
(1) Provisional data pending audit - in progress.
The continuity of supply indicators shown include the impact valuation of potential incidents that are subject to administrative proceedings currently underway. Data pending audit for the current year.

Energy Not Supplied

The energy not supplied measures the energy cut from the electricity system due to service interruptions due to incidents in the electricity system transmission. It is measured in MWh.

Red Eléctrica's peninsular grid

  2013 2014 2015 2016 2017 (1)
Energy Not Supplied (ENS) MWh 1,126 204 53 67 60

Red Eléctrica's non-peninsular grid

Balearic Islands
  2013 2014 2015 2016 2017 (1)
Energy Not Supplied (ENS) MWh 80 13 29 0.3 33
Canary Island
  2013 2014 2015 2016 2017 (1)
Energy Not Supplied (ENS) MWh 72 148 150 457 47

In 2010, in compliance with Law 17/2007 Red Eléctrica acquired the non-peninsular assets of the Balearic and Canary Islands. From 2011, the calculation of quality indicators corresponds to the  transmission grid owned by Red Eléctrica.
(1) Provisional data pending audit - in progress.
The continuity of supply indicators shown include the impact valuation of potential incidents that are subject to administrative proceedings currently underway. Data pending audit for the current year.

 
Atención
Monthly data. Data quality of service total transport network are updated monthly and are also available for consultation in our section Publications - National indicators.