Imagining an energy surplus future?

We may take indeterminate time to reach energy 'surplus' in a strict sense, though that does not preclude universal free access

Imagine a future with a surplus of energy, where a 100 per cent renewables-powered electricity grid harnesses the abundance of energy beamed down on us daily to give 100 per cent reliability of supply. This future will enable energy prices to be a fraction of what they are today, or perhaps even universally free. Let’s consider two milestones of our journey towards this future, one in the distant future; and the other more nearer-term for India and rather imminent.
 
The indications are that we’ll continue to find ever newer ways to consume energy. We may take indeterminate time to