Members of the April 15 Technical Innovation Shock Brigade built up database for a geographic information system for power supply that helps control and operate power units and transmission and distribution network in a uniform and scientific way.

The Industrial Technology Institute invented an automatic reactive power compensation device for equipment.

Power distribution stations in Koksan and Thosan counties manufactured an automatic exciting regulator for medium and small generators and a digital transformer temperature measuring device to ensure the safety of power unit.

Those in Sariwon City and Pongsan County developed devices for filtration of transformer oil and raising efficiency of breaker.