1.3 megajoule = 0.361111 kWh, or about 5 cents at my residential rates.
And they need to expend a “pencil eraser” sized, precisely machined gold object each time.
They may have achieved energy break-even, but they will need to improve this by at least three or four orders of magnitude to achieve financial break even.
Economical fusion will be produced in a device the size of a Home AC unit, not the size of a football stadium.............................