Sequoia J

The Sequoia J is AERCO’s high voltage jet type electrode steam boiler for large commercial and industrial applications. Sequoia J delivers rapid, reliable steam at pressures up to 500 psig and capacities up to 270,000 lb/hr. Its compact vertical design and advanced electrode jet technology ensure powerful performance in a smaller footprint.

Operating at up to 99.9% efficiency, Sequoia J connects directly to high-voltage distribution without step-down transformers, reducing installation cost and complexity. With fast ramp-up times, minimal maintenance, and safe, combustion-free operation, Sequoia J is a future-ready solution for clean energy transition.

Features and Benefits

• Available from 6 MW to 70 MW
• Output: Up to 270,000 lb/hr steam
• Pressure range: 75 to 500 psig (5 to 35 bar)
• Operates at 4.16 to 25kV (no step-down required)
• Up to 99.9% electrical-to-steam efficiency
• Jet-type electrode design for space-saving performance
• Fully ASME Section VIII Div 1 compliant
• Integrated recirculation pump and motorized control system
• Designed for high conductivity operation to minimize blowdown
• Standard safety cage and insulation
• Optional: superheater, separators, water treatment systems 

Controls
Sequoia J features automatic demand control, proportional feedwater regulation, and a simple HMI with real-time pressure/load monitoring. Control sleeve and electrode jet modulation enable 0–100% turndown.

How it Works
The jet type industrial boiler uses the conductive and resistive properties of water to generate steam. Water is circulated through jet nozzles that strike electrode target plates, creating a current path that heats the water directly. A second current path completes the circuit via the counter electrode. Output is modulated by adjusting a motorized control sleeve that diverts water flow. Because current cannot flow without water, low-water safety is inherently built in. The system reaches full output rapidly and maintains steam pressure automatically to match load requirements.

Meets Environmental and Efficiency Goals
The Sequoia J boiler converts nearly 100% of electrical energy into steam with zero combustion emissions, helping facilities meet strict environmental standards. Its clean operation reduces the carbon footprint and aligns with sustainability initiatives.

Lower Operating Costs
By eliminating fuel storage, combustion equipment, and complex pollution controls, the Sequoia J significantly reduces both capital and ongoing maintenance expenses. Automated controls also minimize operator intervention, cutting labor costs.

Simplified Installation
Sequoia J is designed to require minimal supporting infrastructure—no fuel lines, no emissions equipment—resulting in faster, more cost-effective installations. Electrical connections are streamlined with standard high voltage feeds.

Safe and Easy Operation
No flames, fumes, or combustible fuels ensure a safer working environment. The boiler’s built-in safety features prevent low water conditions and thermal shock, and the automatic load controls maintain stable steam output effortlessly.

Straightforward Maintenance and Reliable Operation
With fewer components and no fuel residues, maintenance is reduced and simplified. Durable electrode design prevents burnout, while robust control systems ensure long-term reliable operation with minimal downtime.