The decline in the rural economy in Wales threatens the future of many hill farmers.
In an effort to counter this and provide a future in farming for their children, three hill-farming families formed the Cwmni Gwynt Teg cooperative, to build a wind farm on their land. With no previously experience in wind energy it took them five years to achieve their goal.
The wind farm's combined output of about 10 GWh/year is enough to supply around 2,400 average UK homes.
1,500 people turned up to watch the installation of the first turbine.
The wind farm has three 1.3 MW turbines, two owned by the cooperative and one privately.
"The farmers have shown tremendous courage and initiative, not just in safeguarding their own future, but also the future of the valley and the environment."
Local parish priest