Complex sentence: During its construction, difficulties arose when gypsum clogged the well's filters, but these problems were overcome, and in 2004 the State Commission confirmed a plant capacity of 35 MWt, of which geothermal constituted 13.6 MWt.
Split into simpler sentences: During its construction, difficulties arose when gypsum clogged the well's filters. These problems were overcome, and in 2004 the State Commission confirmed a plant capacity of 35 MWt, of which geothermal constituted 13.6 MWt.