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I'm not convinced about trend 1. Its worldwide uptake is currently due mostly to government sponsorship. Long term it has a shot but we're more likely to see nuclear power long term. Why? Because solar only works while the sun shines. We'd need an efficient low-cost energy storage method to power your house from solar at night or on cloudy days.
Or are you thinking of a true world-wide grid, where we get solar energy from around the globe? That'd be a possibility if we continue improving high-temperature superconductors. But we wouldn't be off the grid then. Same for orbital generators transmitting via microwave energy (and I'd hate to be in the beam path if it wobbles, lol).
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