Current spot price in northern Norway is €10.16/MWh, while it is €745.08/MWh in southern Norway (73x the price), largely due to limitations in transport networks between the electricity zones. The price in the northern zone is so low that some hydro plants have stopped producing electricity as they would be losing money at the current price level. https://www.skandiaenergi.no/dagens-spotpriser/ Electricity Maps has a…
All energy problem reduce to problems of energy transportation. We have a huge fusion reactor in the sky. The challenge is capture and transit. The problem is not incidental; it's fundamental.
An efficient, large scale global economy is only possible with incredibly high energy density (and easy to transport and convert into usage energy) energy sources.
And, to your point, even global food supply is ultimately an issue of transporting energy from the sun to human bodies largely in the form of plant based carbohydrates. Human's ability to expand around the globe is predicated on the ability to transport the caloric requirements efficiently.