Possibile to call variables from other abilities?

would it be possible for a component to call a variable generated in another ability?

something like this:

component x
Ability 1
amount 1 = x
Ability 2
amount 1 = [%ability1_amount1%] * 2

I'm specificly looking at it for a solar sail mod.. making it so the solar sail gives a movement boost based on the number of stars in a system by giving it an insignificant solar supply generation of one per star, then referencing that ability amount in a movement variable, as so:

Solar Sail
Ability 1 := Solar_supply_generation
Amount 1 := 1
Ability 2 := Movement_Extra_Generation
Amount 1 := [%Ability1_Amount1%]