List of Sub-suppliers:
- generators - ČKD, AVK, Končar, Siemens, TES Vsetín
- gas turbines - Škoda Turbíny, PBS Bíteš, ABB Brno
- water turbines - ČKD Blansko, ČKD Turbotechnicz, Hydrohrom, MAVEL
- electric motors - ČKD, SIEMENS Frenštát, Drásov, Končar
- power semiconductors - Siemens - Eupec, Semicron
- fans - Rittal, Ziehl
- contactors, regulators, signalling, terminals - Sprecher, Secheron, General Electric
- relays, supervisory relays - Schrack, Syrelec, Lovato
- protections - General Electric, ABB, SEG, Siemens, Alsthom
- sensors - LEM, IFM
- microprocessors - INTEL
- memories - Thompson
- coolers - Junior-Kühlkörper, Fischer
- panel measuring instruments - Metra Blansko
- breakers, fuses - OEZ Letohrad
- transformers - Eximet Jevišovice, BEZ a další
- cubicles - Ello Brno, ABB EJF
- control systems - Siemens-Simatic + own production
- sources - Traco, Melcher, Eprona, Elfis