NASA, the military, aviation, and many other industries use Technology Readiness Levels (TRL) to plan a path to full commercialization of their products. TRL consists of nine rigorous stages, each with its own parameters, that a technology must pass before becoming fully certified. Wind turbine development also needs to go through these different levels.

Wind Harvesters and their earlier prototypes have completed the first six levels. In February 2022 Model 3.1 entered TRL 7 (pilot project). In 2023 we expect our Model 4.0 to complete TRL 8 (international certification) and enter TRL 9, the final step which is completed when banks will use the new technology as collateral on long-term project loans. Achieving TRL 7 is something that no other H-type turbine company has yet achieved, giving Wind Harvest a big step up on the competition.