Proposed new terminology to align AWE with established wind energy

[PierreB]

Some more or less connected discussion occurred on

Stationary and downwind AWES as the two main AWE categories?

Usually AWES are classified into two main categories: drag wings (for flygen) and lift wings (for yoyo). But numerous AWES doesn’t enter these two categories. If the “two main categories” were defined in regard to the swept area instead of the wing features almost all AWES could be included. Let us try: 1.Stationary swept area (almost all methods excepted yoyo) 2.Swept area going downwind (yoyo). Stationary swept area refers to torque systems like rotors (flygen like Sky Windpower, or grou…

I suggested two main categories:

• Stationary

• Downwind

These terms refer to the swept area.

• Stationary AWES would concern static or crosswind fly-gen, but also rotary devices like SuperTurbine™ or Daisy or Kiwee or Rotating Reel, and also carousels, which could be subcategories. Betz’s limit of 16/27 applies (more or less, rather less) to all these devices.

• Downwind AWES are aligned or crosswind yo-yo (kite-reeling) devices. Betz’s limit drops to 4/27.

So, to avoid confusion, Makani-type devices could be called “fly-gen” as is already done, and kite-reeling devices could be called “yo-yo” or even “kite-reeling”.