The domestic demand for its thin-film modules is now so high that it is struggling to meet orders — despite running its two-year-old 900MW factory at full throttle and even restarting production at an ageing, shuttered 60MW plant nearby, an almost unprecedented move in the PV industry.

And this huge demand comes despite the fact that its copper-indium-gallium-selenide (CIGS) thin-film modules, on paper at least, remain uncompetitive with crystalline-silicon (c-Si) technology.

But