The EverLift Corporation has several wind and hydro products, based on our patented novel concept of turbine design.
These products are grouped in several “families,” depending on the scale, market targets and niches as well as cost and performance.
LAWT = Novel Architecture for On- & Off-Shore Wind & Hydro Turbines
Conventional Wind Turbines (HAWTs) use the “rotary wing” concept of a helicopter, whereas the LAWT concept uses the “fixed-wing” concept of an airplane.
“LAWT” = Looped Airfoil Wind Turbine brings the inherent physics advantage of the superior lift force of linearly traveling wing to the emerging applications of the ocean tidal stream energy harvesting, as well as the On-shore & Off-shore kinetic wind energy.
Wind-LAWT harvests the kinetic energy of wind and converts it to electricity.
Floating Hydro-LAWT converts the kinetic energy of ocean streams into electricity.
LAWT Wind and Hydro turbine developed by EverLift Wind Technology:
is a fixed-wing wind turbine patented by EverLift Inc. scalable from 10KW to Megawatts.
Lift superiority of an airplane-like wings, moving in linear direction on a trapezoidal track. Conventional rotor –based Wind Turbines cannot match the Lift of a fixed-wing.
LAWT Wind Turbine:
- Wheeled wings are circulating inside a trapezoidal track.
- 2 Chains or segmented rigid connectors bind all wings together.
- Track segments: ascending, descending & returning.
- 2 nacelles house the mechanism for lateral to rotational conversions and the generators.
- Front “wind shield” prevents any braking drag force on “returning” wings.
- Inherent LAWT advantages are rooted in the physics.
- LAWT blades are similar to airplane wings and travel linearly.
- Constant profile along its entire length, greatly reducing the manufacturing costs.
- No gears are required, only Sprocket wheels
- Yaw is automatic = passive.
Principle of operation
Off-shore advantages positions the LAWT concept for Maine applications
LAWTs share a single raft or barge platforms which HAWTs cannot do.
a) LAWT = Bottom–heavy rather than the Top-heavy conventional wind turbines.
- floating platforms smaller, shallower enabling floating installations in water less deep. Also smaller platforms=Cheaper moorings.
b) Minimal turbulence enables dense LAWT Arrays.
- Turbulence returns back to laminar wind stream within few wing chord lengths.
LAWTs can be placed much closer to each other and can share a single platform. The conventional wind turbines, HAWTs require a minimum distance from each other = 5 to7 times its rotor diameter. (HAWT= Horizontal Axis Wind Turbine).
HAWTs cannot share a floating platform. HAWTs cannot match LAWT concept Array energy density!!
On-shore market is also targeted
On-shore market focus will be on the new niches. The Industrial park roof installations, as well as the fill-ins of the large gaps of existing conventional “wind farms” are the best examples.
brings the inherent physics advantage of the superior lift force of linearly traveling wing to the emerging applications of the ocean tidal streams energy harvesting.
Maine’s Bay of Fundy will be the first targeted market.
Picture below shows the model of Hydro-LAWT developed by the Campus Ventures Department of the University of Southern Maine at Gorham, with the guidance and support by the Advanced Manufacturing Center at the University of Maine in Orono.