English: There is a well-known saying that nuclear fusion is always 30 years away. Since that saying was first coined, many 'commercial' fusion companies have been founded. These companies hope to generate electricity from nuclear fusion much sooner. This graph illustrates that some of these companies have already failed to deliver on their predictions. The datapoints are sourced from the following locations (which are clearly attributable to the respective companies):

[1] https://news.mit.edu/2018/mit-newly-formed-company-launch-novel-approach-fusion-power-0309 [2] https://www.cfs.energy/news-and-media/commonwealth-fusion-systems-closes-1-8-billion-series-b-round [3] https://web.archive.org/web/20230327132047/https://cfs.energy/news-and-media/cfs-opens-fusion-energy-campus [4] https://web.archive.org/web/20030902054635/http://www.generalfusion.com/investor.html [5] https://web.archive.org/web/20110128113542/http://generalfusion.com/ [6] https://web.archive.org/web/20110515155444/http://www.generalfusion.com/downloads/gf_pr_series_b.pdf [7] https://fire.pppl.gov/fpa11_laberge_GF.pdf [8] https://fire.pppl.gov/FPA12_Richardson_GF.pdf [9] https://time.com/4082939/inside-the-quest-for-fusion-clean-energys-holy-grail/, https://time.com/magazine/south-pacific/4083150/november-2nd-2015-vol-186-no-18-asia-europe-middle-east-and-africa-south-pacific/ [10] https://committees.parliament.uk/writtenevidence/111966/pdf/ [11] https://generalfusion.com/post/general-fusion-exceeds-core-technology-performance-targets-with-plasma-and-compression-prototypes/ [12] https://web.archive.org/web/20141031210536/http://www.helionenergy.com/ [13] https://web.archive.org/web/20190430161750/http://www.helionenergy.com/ [14] https://www.helionenergy.com/faq/,https://www.technologyreview.com/2023/05/10/1072812/this-startup-says-its-first-fusion-plant-is-five-years-away-experts-doubt-it/ [15] https://web.archive.org/web/20230516073743/https://www.helionenergy.com/faq/ [16] https://web.archive.org/web/20210928004343/https://nautil.us/issue/86/energy/the-road-less-traveled-to-fusion-energy [17] https://tae.com/first-measurements-of-hydrogen-boron-fusion-in-a-magnetically-confined-fusion-plasma/ [18] https://www.power-technology.com/features/featuretokamak-energy-big-ideas-in-a-small-vessel-4708451/ [19] https://www.theengineer.co.uk/content/news/fusion-analysis-suggests-promise-for-smaller-cheaper-reactors [20] https://www.theengineer.co.uk/content/opinion/the-route-to-commercial-fusion-electricity-by-2030 [21] https://www.theengineer.co.uk/content/interviews/interview-jonathan-carling-tokamak-energy-s-new-ceo [22] https://iopscience.iop.org/book/edit/978-0-7503-2719-0/chapter/bk978-0-7503-2719-0ch5 [23] https://www.world-nuclear-news.org/Articles/Tokamak-Energy-achieves-crucial-plasma-temperature [24] https://www.tokamakenergy.co.uk/2023/04/12/first-look-at-tokamak-energy-fusion-power-plant/

[25] https://www.geekwire.com/2023/zap-energy-lands-5m-federal-grant-and-vote-of-confidence-in-pursuit-of-fusion-power/