Energy & Power Generation

Power generation equipment is among the heaviest in any industry. A utility-scale power transformer (500 MVA class) weighs 400,000 to 500,000+ lbs. Gas turbine packages like the GE 7HA.03 weigh approximately 925,000 lbs assembled. Steam turbine rotors for combined-cycle plants typically range from 50,000 to 150,000 lbs, and generator stators can exceed 300,000 lbs. Heat recovery steam generators (HRSGs) are delivered in modules weighing 100,000 to 400,000 lbs each. Every one of these components requires engineered lift plans, heavy-capacity cranes (often 500+ ton), and precision placement.

Power plant rigging falls under OSHA 29 CFR 1926 Subpart CC for crane and derrick operations and 29 CFR 1910.147 for lockout/tagout during equipment servicing. The ASME B30 series governs lifting equipment — B30.5 for mobile cranes, B30.9 for slings, and B30.26 for rigging hardware. NERC (North American Electric Reliability Corporation) reliability standards may apply when work affects grid-connected equipment. Nuclear facilities add NRC 10 CFR 50 requirements and NUREG-0612 (Control of Heavy Loads at Nuclear Power Plants), which mandates single-failure-proof crane systems and pre-approved lift procedures for loads over critical components.

Large power transformer moves require months of advance planning. The transformer is typically shipped on a specialized multi-axle transporter (Goldhofer or Scheuerle type) rated for 500,000+ lbs. Route surveys identify bridge weight limits, overhead clearances, turning radii, and road grade restrictions. State DOT overweight/oversize permits are required in every jurisdiction the load passes through. At the site, hydraulic gantry systems (governed by ASME B30.1) or high-capacity mobile cranes position the transformer onto its concrete pad — a process that requires precision alignment to within ±0.25 inches for bushing connections and cooling system attachments.