Replace outdated electromechanical relays and annunciator panels with solid-state relays and a modern alarm annunciator, install new HVAC and hydr…
Office of NEPA Policy and Compliance
April 22, 2026
Estimated Read Time min
Replace outdated electromechanical relays and annunciator panels with solid-state relays and a modern alarm annunciator, install new HVAC and hydrogen detection systems to create a stable, climate-controlled environment in the Industrial and Westenbroek substation control houses.