Circuit schematics and results of testing of inductive energy storage elements built around fully controllable gas-discharge devices (FCGDs) have been presented. The following utmost parameters of voltage pulses have been obtained: pulse amplitude up to 100 kV and pulse repetition frequency up to 2 kHz. The full control has been established over the FCGD drawing current up to 500 A. A nitrogen laser has been demonstrated to operate with efficiency of 0.2% of pump power when pumped by the inductive storage element.