Long-term Grid Expansion: Spanish Plan 2030
The current financial crisis affecting everybody has brought to the table two issues: the weakness of the international economic system and the great uncertainties which appear regarding what will happen in the future. In relation to the electricity sector, societys greater awareness regarding environmental issues has made climatic change and the way it is tackled a new challenge, which in turn has derived in different strategies which mainly affect the activity of electricity generation, leading to a massive integration of generation from renewable energy sources. Transmission grid planners must deal with the numerous uncertainties which currently exist with the purpose of assuring, in the long term, a reliable, efficient and economical functioning of the bulk electricity power system, in order to guarantee the quality of the electricity supply for all future users. To these uncertainties, it is necessary to add the restrictions imposed by society, such as the minimum environmental impact or the increasing difficulty in the construction of new transmission lines and all this, without losing sight of the necessary modelling of the electricity power system. Consequently, the task of the grid planner becomes more and more complex. In the international context, diverse positions can be found, from those which think that any long term planning is not reliable and that very soon it will not be possible to build any more new lines, to those who think that greater uncertainty is responded to with more planning. Red Electrica de Espa(n)a (REE), the operator and owner of the Spanish transmission grid (TSO), is in favour of the latter position, as is demonstrated by the fact of having backed, more than two decades ago, the drafting of its own models to determine the expansion of the transmission grid in the long term (>20 years) and consequently to have drafted long-term development plans in different horizons. The experience of REE with respect to long term grid planning is presented below, as well as the main conclusions drawn which concentrate on the advisability and validity of the studies carried out in planning, although also in the necessity to improve and to develop planning tools which deal more and more in an integrated form with numerous uncertainties and multiple objectives, to provide information on the transmission corridors to be developed, in the long term, and in particular on flexible axes, those that are able to adapt to the fast variation of the events in the current changing world.
Grid expansion Long-term planning Flexible transmission planning Robust plans and flexible corridors Uncertainty and risk.
R.de Dios S.Sanz J.F.Alonso F.Soto
Red Electrica de Espana(REE) Spain
国际会议
桂林
英文
1-7
2009-10-28（万方平台首次上网日期，不代表论文的发表时间）