Performance Benefits

Our vertical axis wind turbines deliver outstanding levels of performance:

  • Outstanding efficiency – 53% harvest rate (compared to a maximum achievable rate of 59.3% (according to Betz' Law)
  • Extremely low start up and engagement wind speeds – start up: from 1.2 and 1.5m/sec; engagement: from 2.0 and 2.5m/sec. This allows energy to be generated much earlier and for far longer than traditional blade turbines
  • Quiet operation – at just 39 decibels at 20m in a 5m/sec wind speed the turbine is generally quieter than ambient noise
  • Designed for all wind conditions – perfectly suited to harness the extra high power from gusts to maximise energy generation
  • Envergate systems do not need to be turned into the wind to achieve optimum performance

All our performance figures are based on actual applications, not theoretical models.