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The 39 turbines are capable of supplying 42,000 homes with power

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Economic Development Minister Andrew Davies called it an 'historic day' as he opened the windfarm

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Mr Davies said 'sensitively designed wind farms can play an important role' in meeting renewable targets

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The wind farm is 500m above sea level

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People opposed to the wind farm say its spoils the landscape and it is a "quick energy fix"

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To illustrate the scale of the turbines, NewsOnline reporter Carl Yapp squares up to one

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Some anti-wind farm campaigners claim mid Wales is at saturation point

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The nearest property to Cefn Croes is nearly two miles away

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Roger Jones of Falck Renewables says fewer more powerful wind farms are the future for green energy production

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The view across the Cambrian Mountains is stunning from Cefn Croes

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Energy is pumped from the turbines to a sub-station nearby

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A NOP poll commissioned for the Wind Energy Association on Thursday claimed 75% of people in Wales believe wind farms are necessary for future energy needs