The arc reactor is an energy producer for the iron man suit from Iron Man movie (2008). The first Arc reactor was designed by Howard Stark and Anton Vanko, the reason why Howard Stark making arc reactor is he want to replace nuclear power with a new and cleaner method. But, the first arc reactor was too big, it's as big as a small house.
Several years later in a cave, Tony Stark makes an Arc Reactor with limited resources and tools. He miniaturized his father's arc reactor that could fit in his hand, it gives him a smaller and powerful energy source that could fit in his chest. Tony Stark estimates his arc reactor power, and his arc reactor power is three gigajoules per second, its almost 2/3 as powerful as Fukushima Daiichi nuclear power plant.
Many people in remote areas where schools are not feasible. They can only study during the day when the world being shined by the sun and what they learn is very limited. So, if they want to learn something about technology, they have to go to a very far city and not all people can luck to study in the city.
So, the Arc Reactor can be a solution, because the arc reactor can supply electricity for residents in a remote place. especially for students, they can learn more things, because their area is already electrified. If it has electricity, the school can add more facilities such as laboratories, the internet, computer and so on. So that people in a remote area can study just like in a city.
Resource :
https://geekculture.co/wp-content/uploads/2019/06/Iron-Man-Arc-Reactor-Mark-II.jpg
https://marvelcinematicuniverse.fandom.com/wiki/Arc_Reactor#Miniaturization
https://scifi.stackexchange.com/questions/195480/iron-man-3-gigajoules-per-second#:~:text=3%20GJ%2Fs%20(gigajoules%20per,the%20entire%20Fukushima%20generating%20complex.