Wind turbines are manufactured in a wide range of vertical and horizontal axis. The smallest turbines are used for applications such as battery charging for auxiliary power for boats or caravans or to power traffic warning signs. Larger turbines can be used for making contributions to a domestic power supply while selling unused power back to the utility supplier via the electrical grid. Arrays of large turbines, known as wind farms, are becoming an increasingly important source d
One assessment claimed that, as of 2009, wind had the “lowest relative greenhouse gas emissions, the least water consumption demands and… the most favourable social impacts” compared to photovoltaic, hydro, geothermal, coal and gas.
One assessment claimed that, as of 2009, wind had the “lowest relative greenhouse gas emissions, the least water consumption demands and… the most favourable social impacts” compared to photovoltaic, hydro, geothermal, coal and gas.