When will the first commercially viable nuclear fusion power plant be built?

·Science and Technology·ends Jan 2, 2100

For decades, nuclear fusion was always "20 years away". Now it's time to settle the debate here! Will it ever happen, and when? I've opted for a range instead of a specific year, but you can specify the exact year in the comments below if you want. I've also allowed for adding new answers later for this poll, so if you think additional options need to be added, let me know! Will resolve when either of the following conditions are met: The first commercial nuclear fusion power station is built. Another energy source is preferred/more economically more competitive for base-load power, and nuclear fusion deployment is either halted or restricted to niche applications.