"No more oil," may not be particularly relevant, but many of the environmental problems with oil also exist with coal, which is a major source of electricity.

That said, the problem with the gird is somewhat independent of the energy source that generates the electricity. Using big wind farms in empty places to generate electricity for a wide geographic region also requires the grid to get that electricity to where it's needed. There are models of small distributed electrical production that could get around that, but as long as we use the grid system we will need to invest resources to maintain it, even with greater use of alternative energy.