She and Kylo Ren were both trying to bring the transport to themselves with the Force, and in her anger, she accidentally unleashed lightning upon it, destroying the ship immediately.
Given Rey's lineage as Palpatine's granddaughter, it is also reasonable to assume she is already better attuned to using Force Lightning than the average Force user, with Ben telling Rey that she has all of Palpatine's power within her at the beginning of The Rise of Skywalker.
During The Rise of Skywalker, Ray accidentally uses Force lightning on the planet Pasana, believing she accidentally killed Chewbacca. While this moment was used to hint at her Palpatine heritage, it also shows that anyone can use the lightning, but only if they channel their anger.
Kylo demonstrably couldn't defeat Snoke directly, instead killing his master via deception. Kylo most likely never learned how to conjure Force lightning, which is considered an advanced skill for dark side users.
Some members of the New Jedi Order such as Luke Skywalker (who also used the dark side version at times), Jacen Solo and Jaden Korr also used light side Force lightning known as "Emerald Lightning", or Electric Judgment, but it remained somewhat controversial to some Jedi.
Why Rey "Accidentally" Using Force Lightning Is So INFURIATING
Why can't Darth Maul use Force lightning?
Two easily explainable reasons for why Maul never used Force lightning, which have come up several times, are one) that he wasn't a Sith Lord and two) he never learned the ability in the first place.
Either way, while Vader can use most other Force abilities, Force Lightning needs to be channeled, and Vader's limbs are explicitly not connected to the Force. The Star Wars: Episode III - Revenge of the Sith Visual Dictionary confirms Darth Vader cannot use Force Lightning, and even suggests this is the reason why.
Supreme Leader Snoke used it to subdue his apprentice, Kylo Ren, when the young knight lost control of his anger. Snoke's use of Force lightning varied from previous practitioners, as he projected energy against the ship's floor, causing it to bounce upward and knock the target off their feet.
Some Jedi do not even need a lightsaber to block Force lightning, with Master Yoda catching it in his hands. There is some evidence he absorbed the power of Force lightning into himself, using it to boost his own Force power.
Luke didn't need to be warned about force lightning. He had a very different form of training than Jedi just years earlier had. He was trained with self-experience, and that was truely what was best for him.
Force lightning can be deflected and absorbed by a lightsaber, and select Jedi have proved able to neutralize the technique through the power of the light side.
Born on the planet Hyperkarn in 15 ABY, Rey Palpatine was the daughter of Dathan and Miramir. While their names were lost to history, Rey's father was the cloned son—an artificial genetic strandcast—of the resurrected Darth Sidious, making her the granddaughter of the fallen Galactic Emperor and Dark Lord of the Sith.
Often wielding a double-bladed lightsaber, Inquisitors used quick, guileful, and lethal maneuvers to strike their enemies down with astonishing speed. Whether the Inquisitor wielded a lightsaber with lightning-sharp attacks, or just Force lightning itself, it was always a dazzling display of deadly energy.
The prevailing view is currently that Rey inherited her Force-sensitivity from her father, that is, Palpatine's son, who Palpatine must have conceived at the height of his rule of the Galactic Empire, although he does seem very career focused throughout the Star Wars saga without any apparent aspirations of settling ...
What is the most powerful form of Force lightning?
While Palpatine's lightning is by far the most powerful thing seen in the Star Wars movies, the Son's red lightning is certainly more dangerous. It's only been used by one other character in Star Wars canon, and that character was none other than Darth Vader.
Yes he does enjoy the fight and is more aggressive with the form, but at no point does he actually use the dark side. The thing about Vapaad is that Mace uses himself as a conduit to redirect his opponent's dark side power back at them. So he isn't drawing on the dark side or using it himself.
As a result, Palpatine's face changes in Star Wars: Episode III - Revenge of the Sith because his dark side-induced mask was broken by the Force Lightning rather than the Sith lord actually being disfigured by his own attack.
Gray Jedi commonly demonstrated their skills with both Light and Dark side Force capabilities. For example, the capacity to construct a lightsaber from scratch, along with unique Force talents such as Force lightning.
Anakin is supposedly more powerful than other Sith Lords like Dooku yet he can't use force lighting. Any explanation? He can do it, but it would risk shorting out his life support. Here's an explanation from The Stupendous Wave.
Despite being equally as strong in the Force, one innately Sith ability that Jedi in the Star Wars franchise do not wield is Force lightning. First introduced when Darth Sidious (Emperor Palpatine) electrocuted Luke Skywalker in Star Wars: Return of the Jedi, Force lightning is a powerful weapon for Sith.
6 Darth Maul — he does not hesitate to taunt people & cause them intentional harm with his force choke. While most have used the Force choke as a means to warn someone, to dominate them, and tell them to follow their orders, others like Darth Maul have used the action to taunt people and to cause them intentional harm.
In the Revenge of the Sith Visual Dictionary, under Darth Vader, in the Data File, it says -"As a result of having artificial arms, Darth Vader will never be able to conjure Sith lightning-nor be invulnerable to it."- Thats probably why Vader suffered so much in Return of the Jedi.
Anakin Skywalker's Chosen One Potential Was Permanently Stunted. The Darth Vader comic book series reveals that, while the eponymous Sith Lord was indeed capable of using Force Lightning, the electricity could potentially destroy his life-sustaining suit.
The Obi-Wan Kenobi Disney+ TV show confirmed the Inquisitors were well aware Anakin Skywalker was Darth Vader. This was the real reason Reva had joined the Inquisitors; she was an Order 66 survivor, and she sought to kill Darth Vader in an act of revenge. Needless to say, it didn't go to plan.
As a Sith, Count Dooku's Force lightning is one of the reasons why he's so dangerous, but it's a skill he learned long before he became a Sith. One of the main villains of Star Wars: The Clone Wars, Dooku's lightning is one of his main weapons, much like his master Palpatine.
