No L 313/30 Official Journal of the European Communities 13. 11. 90 (Acts whose publication is not obligatory) COUNCIL COUNCIL DIRECTIVE of 29 October 1990 on the transit of electricity through transmission grids (90/547/EEC) THE COUNCIL OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Economic Community, and in particular Article 100a thereof, Having regard to the proposal from the Commission ('), In cooperation with the European Parliament (3, Having regard to the opinion of the Economic and Social Committee (%), Whereas it is necessary to adopt measures with the aim of progressively establishing the internal market over a period expiring on 31 December 1992 ; whereas the Euro- pean Council has recognized, at its successive meetings, in particular in Rhodes, the need for a single internal market in energy and whereas the achievement of the internal market more specifically in the electricity sector will help the further development of the Community’s energy objectives ; Whereas there must be greater integration of the Euro- pean energy market if the single inertnal market is to be achieved ; whereas electricity is an essential component of the Community’s energy balance ; Whereas the achievement of the internal market for energy, more particularly in the electricity sector, must take into account the objective of economic and social cohesion, that is to say, in concrete terms, guarantee an (") OJ No C 8, 13. 1. 1990, p. 4. (% OJ No C 113, 7. 5. 1990, p. 91 and Decision of 10 October 1990 (not yet published in the Official Journal). () O] No C 75, 26. 3. 1990, p. 23. optimum supply of electricity to all the citizens of all the Community regions, with a view to improving and harmonizing the living conditions and development bases in particular in the least-favoured regions; Whereas energy polices, more than any other measure contributing to the achievement of the internal market, must not be implemented with the sole aim of reducing costs and maintaining competition, but must also take account of the need to ensure the security of supplies and the compatibility of energy production methods with the environment ; Whereas to attain that objective, account should be taken of the specific characteristics of the electricity sector; Whereas there is increasing trade in electricity each year between high-voltage electricity grids in Europe ; whereas the European Community’s security of electricity supply would be improved and costs reduced by coordinating the building and operation of the interconnections required for such trade; Whereas the exchange of electricity between electricity grids which is based on contracts with a minimum dura- tion of one year is so great that requests for transactions and their consequences should be systematically known to the Commission ; Whereas it is possible and desirable to increase electricity transfers between grids and also take account of the impe- ratives of security and quality of electricity supply; whereas studies show that such greater electricity transfers between grids can minimize the cost of investment and fuels involved in electricity generation and transmission and ensure optimum use of the means of production and infrastructure ;