Electrical energy provides great benefits to those who are connected to a grid. For the billions who are not connected to a grid, the solution is local or portable power generators. Virtually millions of small communities, remote and isolated, need small or medium generators. Fuel powered generators are high in cost per kWhr, fuel supply is risky and unreliable. The solution is generating electricity renewably, where it is needed.
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.
here are many niches that could be served with an off-grid, portable, renewable power generator. This discussion will focus on those that do not have reliable power as a result of not being served by an electrical grid.
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.
Renewable energy is imperative. While no renewable source is the answer for all of our energy needs, wind energy has its attributes. Unlike the sun, wind is everywhere all the time. Wind power has become reasonably cost effective compared to other renewable forms. However, wind is not as cost effective as it should be.
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.