Specialized
Work centered on generator controls, paralleling switchgear, PLCs, and critical power automation.
About HPCS
Focused expertise for the systems other contractors rarely touch.
Hemlock Power Control Systems is a controls-focused company serving owners, operators, electrical contractors, and equipment partners responsible for critical power infrastructure.
Our approach
Understand the system.
Solve the right problem.
Paralleling switchgear and generator control systems combine electrical distribution, automation, protection, and complex operating sequences. Effective service requires more than replacing components—it requires understanding how the complete system is intended to operate.
HPCS brings a practical, field-oriented approach to troubleshooting and modernization. We document what we find, communicate clearly, and engineer solutions that technicians and operators can support long after the work is complete.
Proven experience
More than 20 years working across generations of control systems.
Our experience spans all vintages of paralleling switchgear, generator controls, PLCs, HMIs, and related automation—from legacy relay-based equipment to modern digital platforms. We have successfully upgraded many aging and obsolete systems, preserving proven operating sequences while improving reliability, serviceability, operator visibility, and long-term support.
Practical
Engineering decisions grounded in operating requirements, field conditions, and maintainability.
Accountable
Direct communication and thorough documentation from initial diagnosis through final testing.
Put experience on the problem