Frequent outages and high cost of power remain serious obstacles to economic activity. Tax and other concessions are planned to encourage investment in hydroelectricity and in geothermal energy, in which Kenya is a pioneer. The government plans to open two new power stations in 2008, Sondu Miriu (hydroelectric) and Olkaria IV (geothermal), but power demand growth is strong, and demand is still expected to outpace supply during periods of drought.[2]