A minimum-cost solution is identified for the set of projects as a whole (as opposed to each project individually). All projects are taken into account by the Federal electricity commission which then undertakes technical studies to evaluate lowest-cost solutions for connection. Plans and costs are shared with the developers, who in turn shoulder these costs equally among themselves and then have to confirm commitment by making a 5% up-front payment. Transmission costs of extension are then included in the official budget, at which point developers submit 25% of the payment. Finally the Budget is officially published and bidding for construction is done, following which developers have to submit 100% of the shared costs.