One of the ways Uprise Energy maximizes the performance of our portable wind turbine is by utilizing proprietary electronics to manage rotor RPM so that it follows changes in wind speed, maintaining an optimized tip-speed-ratio. This allows the machine to benefit from the exponential energy in wind gusts and is the feature we refer to as Dancing with the Wind.
When reviewing electrical power options for remote (often times off-grid) regions, there are three primary options one would likely consider: Solar Power, a Diesel Powered Generator or a Wind Turbine. Comparing these three is interesting, but not always equivalent.
Rated output, also known as Nameplate rating, is determined by the wind turbine manufacturer, based on their chosen wind speed. The rated output can be a high number or a low number, depending on the wind regime chosen for performance calculations. In its current state, there is no unified approach to wind turbine ratings, making the process capricious.
The energy of a wind gust is typically 8 times that of the steady wind flow. A modern wind turbine has constraints preventing it from capturing the increased energy in a wind gust. A modern wind turbine, on average, captures 25% of the available kinetic energy from wind flow.
The problems encountered in generating electricity from the wind and delivering the electricity to a user are numerous. This post will address the essential element of this industry, converting the kinetic energy in wind into electricity.
The area under the wind curve is critical to understanding the importance of wind machines and their ability to capture a reasonable percent of that energy.