energy distribution

I am looking to outsource a project to efficiently distribute electricity across a national coverage area. This project is incredibly important and could have far-reaching impacts, so experience is essential. The chosen vendor will be responsible for ensuring energy is delivered to businesses throughout the entire coverage area in a timely and responsible manner. This energy distribution project will require careful planning and execution from the vendor, so I am looking for a highly experienced team to take the lead with this project. To ensure the highest quality of service and the best possible results, I am asking for a portfolio of examples for similar projects previously handled.