The results of investigation of non-chain HF laser pumped with an inductive energy storage generator and semiconductor opening switch are presented. The peculiarities of operation of the generator of this type on gas-discharge load are shown using active media of non-chain HF laser as an example. Output energy of 0.6 J, the lasing efficiency relative to the deposited energy of 5.5% and total efficiency (relative to energy stored in the capacitor) of 3.5% were demonstrated. The possibility of scaling the laser output up to 1 kJ is discussed.