understand the as yet unsolved problems inherent to achieving sustained fusion, and then maintaining it long enough to be commercially viable...here's an excerpt from the attached IAEA article...you won't find any prediction on WHEN the promise of Fusion Power will be realized.
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Reaching for the stars
While the sun’s massive gravitational force naturally induces fusion, without that force a higher temperature is needed for the reaction to take place. On earth, we need temperatures exceeding 100 million degrees Celsius and intense pressure to make deuterium and tritium fuse, and sufficient confinement to hold the plasma and maintain the fusion reaction long enough for a net power gain, i.e. the ratio of the fusion power produced to the power used to heat the plasma.
While conditions that are very close to those required in a fusion reactor are now routinely achieved in experiments, improved confinement properties and stability of the plasma are needed. Scientists and engineers from all over the world continue to test new materials and design new technologies to achieve fusion energy.
Nuclear fusion and plasma physics research are carried out in more than 50 countries, and fusion reactions have been successfully achieved in many experiments, albeit without demonstrating a net fusion power gain. How long it will take to recreate the process of the stars will depend on mobilizing resources through global partnerships and collaboration.
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Don't just read attention getting headlines...dig deeper.
Link: https://www.iaea.org/bulletin/what-is-fusion-and-why-is-it-so-difficult-to-achieve