Inductor energy is computed from flux and inductance. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
Flux and inductance set inductor energy
The standalone source uses flux 2 webers and inductance 2 henry, giving inductor energy 1 joule.
EL=2LΦ2=2⋅222=1J
The checked total comes from the active store
The checked standalone total is 1 joule because this source sets the charge term to 0.