Twin Savonious VAWT (2 videos)

Two, shielded, counter rotating, Vertical, wind turbines. EXCEED TSR OF 1.4.

[@michaelvanallen6400]

*Nice toy. Only those who MUST be self-sufficient from the power grid and live near the coast should install a large wind turbine.* In principle, however, PV modules generate green electricity at approx. 2% to 5% of the cost of small wind turbines. In addition, 99 out of 100 small wind turbines no longer function after 10 years due to the extremely gusty wind near the ground. PV modules, on the other hand, are extremely reliable and low-maintenance.

[@justtinkering6713]

😢​@@michaelvanallen6400 it was just an experimental model to prove that Savonious/drag vawt can achieve TSR greater than 1.0. Nothing serious. PV modules are good when the sun shines. Wind power can be captured at night. You need the proper location for wind power. And you are correct that wind turbines need a lot of maintenance.

[@heimizhou450]

Good idea. try big one (dia of turbine) to get better result

[@grommie]

Nice experiments!

[@PP.EKOTECH]

Hi :) Good job ! :) How max power ? Regards Paul P. = SUB + 👍🏻

[@justtinkering6713]

Never measured. It was just a turbine experiment.

[@jeanbernardhuet6660]

Good job .