"As promised, you all are ahead of schedule. Congratulations!"
COMPANY HEADQUARTERS 650 S. Cherry Street, Denver, CO 80246 Map / (303) 333-0280
HEI provides services for substations up to 500kV in all disciplines. Expertise includes:
- Complete design for substations, for substation additions, and for line relocations
- Installations of shunt capacitor banks, transformers, bays, and breakers
- Relay protection and controls
- Conversions
- Facility studies
- Construction observations for HV and EHV substations
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Xcel Energy, Minnesota -
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Xcel Energy, Colorado
