Thanks for your feedback. Will keep in mind to include the sources the next time I am reporting on something like this.

Generating sustained power from nuclear fusion reactions sure is tricky and as you mentioned, the big elephant in the room is that right now, the input is greater than the output. That is because we are just not able to keep the chain reaction going for longer period of time. The higher temperatures (100 million degree celsius) are required for the fuel (deuterium and tritium) to become plasma. Once plasma is created, an electric current can be passed through it to initiate a chain reaction, that if held for a longer period of time, will give out more energy than is used to hold that state. The mechanism used here is a magnetic confinement one, where the plasma is held in place with the help of superconducting magnets.

According to the Culham Centre for Fusion Energy, a large power station, could provide 20 to 30 times more output than the input.

Thanks again for feedback. Will mention the relevant sources the next time and hopefully you won't be disappointed the next time you read a post from me. :)