Production of alternative energy can be and for most reasons probably should be much less centralized, equivalently, smaller-scale, than production of energy mostly is now. (Off-grid, as you mention, but very literally.)
Large-scale up front + large, complex distribution networks is revealed as an obsolete architecture; large scale distribution networks become relatively less important, so even if the answer to your question is no, which it probably isn't given crowdfunding and other disintermediated finance gaining momentum, it's moot, or at least of much less relative importance.
Put another way, when the most important goal is maximum efficiency rather than maximum centralization, large upfront capital investment + large, complex distribution network is stupid;
proper accounting of all costs and benefits in a global rather than piecewise local sense reveals this now for agriculture, manufacturing, energy, ...
Even now, buffering between supply and demand is a constraint on grid architecture leading to great economic demand within the current paradigm for distributed storage / production of energy according to someone who came through sudo room whose name escapes me.