Original WETGEN forward looking presentation.

1. HANNA Wave and Tidal Drives
John Hanna, inventor and interim director,
WETGEN
Wave Energy Turbine GENerator
Coos Bay, Oregon

2. Blow Hole
Wavegen turbines releasing pressure in a Spanish breakwater

3. • High angle of incidence
• Symmetrical blades
• Poor lift
• Stalls easily
• Poor self starting
• Low efficiency
• Low torque
• Small operating window
• Drives a single generator
• Generator in a wet environment
• Generator difficult to accessWELLS Turbine (Wavegen, Scotland)
• Efficient – but…
• Complex
• Expensive to build and maintain
• Multiple gearsets in hub
• Sensors and actuators
• Drives a single generator
• Generator in a wet environment
• Generator difficult to access
Dennis-Auld Turbine (Oceanlinx, Australia)

4. • Prototype only
• Demonstrates high efficiency
• May not scale up
• Drives a single generator
• Generator in a wet environment
• Generator difficult to access
Jayashankar Dual Impulse Turbine (India)
Hanna Turbine (WETGEN, Coos Bay, OR)

5. • High lift airfoils
• High efficiency
• High torque values
• Will not stall
• Wide operating window
• Drives two generators
• Doubles power output
• Self starting
• Off the shelf clutches
• Only two moving parts
• No valves, gears or sensors
• Linear torque application
• Smooth electrical output
• Reduced noise levels
• Three versatile models
• High amperage model for
desalination
• Multiple applications
• Easy access to generators
• Generators are in a dry environment
• Less expensive to build and maintain
WETGEN Bent Duct model
Drives two generators or pumps
WETGEN Inline model
Stand alone generator

6. POWER PLANT WITH MULTIPLE TURBINES ENVISIONED FOR COOS BAY, OR
LOOKING FORWARD . . .
• Develop 3D CAD drawings for a small turbine prototype.
• Build a small working prototype for testing and verification.
• Test the small prototype as a PTO .
• Positive performance metrics will advance technology readiness level.
2017
• Two Masters of Engineering studies completed in France and Scotland.
2018
• Pilot plant with a half-scale turbine at Mutriku, Spain.
• Half-scale tidal turbine installed in Coos River, Oregon.
2020
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