...in this case, an impact for his contributions.
Robert Wilson, an accelerator physicist and one of the architects of Fermilab near Chicago, published a paper in 1976 that proposed the usage of superconducting magnets on a large scale in particle accelerators. He dubbed his idea "Energy Doubler/Saver." Theoretically, the doubler/saver would put our more energy than it consumed.
Wilson died in 2000, and in this era of breaking our dependence on fossil fuels, his ideas have resurfaced in a rather timely fashion. However, the caveat is the 30-year-old idea does have it's flaws (like it hasn't been simulated or tested other than his own admitted rough calculations). Call it at this point in the stage of a true "null hypothesis."
Sadly, the darker side is if it works as with any technological advancement, there could be a potential warfare application.
Link: Particle Accelerators Could Work As Power Generators