Fusion energy has always been "just a decade away", or "two decades away" or "just around the corner". But now, finally, it really is just around the corner. The first large scale experimental reactor (above) will switch on in 2025. Hey, that really is just around the corner!
And then there's the article linked here reporting the large amount of money pouring into fusion energy research. Fusion energy will be as cheap as any current, with no carbon emissions, no shortage of fuel, and no waste.