Report from the Small Wind Research & Demonstration FacilityBeech Mountain, NCBrent Summerville

4th Annual Small Wind Power ConferenceJune 17-18, 2008Stevens Point, WI

Beech Mountain, NC

SWI Research & Demonstration SiteBeech Mountain, NC

Research•Acoustics•Performance•Avian Impacts

Workshops•Introductory

•Advanced training•Bring in Experts

•Installations

Demonstration•Students

•Public•Always open

Beech Mountain Turbines: Current

SWWP AirX [45’]

SWWP Whisper 100 [80’]

SWWP Skystream [70’]

SWWP Air Breeze [45’]

SWWP Skystream [34’]

Jacobs 31-20 [120’]

ARE 110 [105’]

DosSkystreams

• 35’ monopole– Setup as a battery

charger– Backfeeding a 48V

Grid-tie Outback Inverter

• 70’ Tilt-up– Batteryless Grid-tie– With 70’ met tower

Skystreams: Performance comparison

Skystreams: Performance comparison

Vavg* (mph) TI70' Skystream 14.4 .2135' Skystream 11.6 .39

wind shear alpha 0.37% increase in Vavg 24%

Wind shear Turbulence Intensity

TI = std dev Vavg

* 10-min avg data

Skystreams: Performance comparison

Skystreams: Performance comparison

Energy (kWh)

70' 2,38335' 1,499

% increase windspeed

24%

% increase energy

59%

Skystreams: The latest update is a welcome change

July

06

Jan

07

Jan

08

New 2.0 softwareNew Xbee radios

Skystreams: May update

Skystreams: May update

70' Skystream: May 2008

70' Skystream Vavg 15.0 mph

70' Skystream Max gust 68.7 mph

70' Skystream energy 440 kWh

70' Skystream max power 3856.5 W

70' Skystream max 10-min avg 2432.5 W

Other observations

35' Skystream Vavg 10.9 mph

Air Breeze max power 270.6 W

AirX max power 1172.8 W

ARE110 Workshop

ARE110 Workshop

ARE110 Workshop

ARE110 Workshop

Waiting on wind……..

ARE110 Sound Study

How does the sound of the ARE110 compare with the ambient sound level?

Air Breeze Sound Study

Next Turbines?

Mariah PowerWindspire?

Earth Turbine ? 8-foot Hugh

Piggott Axial Flux?

Brent Summerville828-262-7333wind@appstate.eduwind.appstate.edu Questions?