According to Osho, yes—kundalini practice is explicitly a method of tension. Any authentic work with energy involves tension, because energy is tension; where tension is created, energy arises. Just as atomic power comes by putting particles under strain, kundalini awakens by consciously generating inner tension—rightly understood as the very substance of energy—so the practice channels and releases that life-force.
Kundalini builds power by safely creating inner tension—like pulling back a bowstring so energy can be released.