Opinion of the European Economic and Social Committee on the following proposals Proposal for a Council Regulation amending Regulation (EC) No 1083/2006 on the European Regional Development Fund, the European Social Fund and the Cohesion Fund concerning certain provisions relating to financial management — Proposal for a Regulation of the European Parliament and of the Council amending Regulation (EC) No 1080/2006 on the European Regional Development Fund as regards the eligibility of energy efficiency and renewable energy investments in housing — Proposal for a Regulation of the European Parliament and of the Council amending Regulation (EC) No 1081/2006 on the European Social Fund to extend the types of costs eligible for a contribution from the ESF