Activities

Real-time demand and generation

Red Eléctrica provides graphs that show, in real-time, the electricity demand on the Spanish peninsula. The graphs include data, updated every ten minutes, of the actual demand, the forecasted demand and the scheduled demand, as well as the maximum and minimum values of the daily demand.

Along with the graphs, information is shown regarding the different production technologies or generation mix necessary to meet the demand, including the energy to be exported and that corresponding to pumped storage consumption.

In addition, it also shows the CO2 emissions associated to the complete set of power generation facilities on the Spanish peninsula, which represents approximately 28% of the total emissions.

Along with the generation mix, the total CO2 emissions produced by the complete set of power generation facilities on the Spanish peninsula are presented and detailed by energy sources. 

Such emissions are calculated by associating to each technology the emission factor established in the Spanish Renewable Energy Plan 2005-2010, in line with the Decision of the European Commission 2007/589/CE.

  • The actual demand (yellow curve) shows the instantaneous value of electricity demand.

  • The demand forecast (green curve) is drawn up by Red Eléctrica based on historical electricity consumption data from similar periods, adjusting it by using a series of factors which influence consumption, such as working and seasonal patterns, and economic activity.

  • The hourly operating schedule (stepped red line) shows the scheduled production of the generating units which have been allocated the responsibility of supplying the electricity required to meet the forecasted demand. The schedule and allocation is established through the matching of the day-ahead and intraday markets, as well as the deviation management and tertiary control markets. Red Eléctrica, based on the evolution of the electricity demand, manages the latter two markets.

The interval-based electricity demand graph also enables the peninsular demand to be analysed during different periods of time and helps check uniform behaviour in the daily demand.

 

Balearic Islands’ daily balancing

Red Eléctrica provides graphs that show the electric energy demand curve in real time for each of the four islands that make up the Balearic islands' electricity system, two of which: Mallorca and Menorca, Ibiza and Formentera are interconnected by a submarine link. Data regarding programmed generation, actual and forecasted demand is updated every ten minutes, and the graph also shows the values of the maximum and minimum daily demand.

Together with the curves, information is shown regarding the various generation technologies that are available to meet this demand and the CO2 emissions associated with the complete set of thermal generation facilities.

Canary electricity demand in real-time

Red Eléctrica provides graphs that show the electric energy demand curve in real time for each of the seven islands that make up the Canary islands' electricity system, two of which - Lanzarote and Fuerteventura - are interconnected by a submarine link. Data regarding programmed generation, actual and forecasted demand is updated every ten minutes, and the graph also shows the values of the maximum and minimum daily demand.

Together with the curves, information is shown regarding the various generation technologies that are available to meet this demand and the CO2 emissions associated with the complete set of thermal generation facilities.

Wind power generation in real time

The production of wind power energy presents some unusual features which are mainly associated with its non-manageable nature. This factor makes it necessary to constantly have sufficient power reserve in the system from other sources of energy such as combined-cycle or pumped-storage. This particularity requires the optimisation of the forecasting, monitoring and control functions so that the system operation can be performed under appropriate conditions of security.

The graph of wind generation in real-time provides information on the wind energy being produced in the Spanish peninsula electricity system, for an interval of 30 hours and the data is updated every ten minutes. This curve is supplemented with information on the percentage that wind power energy contributes to the total coverage of peninsular electricity demand and the approximate percentage of total installed wind power.

The graph associated to the wind generation intervals and winds contribution to demand coverage aims to help check the variability of the wind (that blows when it blows and is not brought on line or regulated as is the case of nuclear or thermal) and how Red Eléctrica, through its CECRE, has to always achieve the ideal combination of maximum wind power integration and security of the electricity system, when faced with a more homogeneous behaviour in the daily demand.