translate English to French: The evaluation of the economic viability shall be based upon a cost-benefit analysis which shall take account of all costs and benefits, including those in the medium and/or long term, in connection with environmental aspects, security of supply and the contribution to economic
L'évaluation de la viabilité économique se fonde sur une analyse coûts/bénéfices qui tient compte de tous les coûts et bénéfices, y compris à moyen et/ou à long terme, liés aux aspects