Energy, scalar or vectorial?

[Werg22]

It's all in the title...

[Doc Al]

Energy is a scalar, if that's what you're asking.

[vaishakh]

Energy is defined from the work done. for more clarity both work as well as enegy is a scalar. I think this is taught in high school at 7 or 8 standard. you better look at textbooks of higher standard.
if you understand work is defined by the dot product of force and displacement.