After the 1991 uprisings in Iraq, the Kurdish regions – Erbil, Sulemaniyah and Dohuk – were cut off from the national grid. For the rest of the nineties, Erbil and Sulemaniyah had to rely on supply from the hydroelectric power stations at Lake Dokan and Lake Derbandikhan, capable jointly of generating approximately 300-400MW during the summer months when conditions permit (i.e. there has been sufficient rain during the winter); Dohuk, meanwhile, was able to obtain limited power from Mosul.