Barbier reports that the CO2 geothermal emissions are in
the range 0.01e0.4 kg/kWh and that carbon taxes would impact
geothermal power production with an extra charge at 0.04e1 cent/
kWh. Certain geothermal power plants in Turkey also use of carbon
trading in the voluntary carbon market, which yield approximately
20,000 USD/MW-year in income. Zero emission production is
applicable for projects in which released NCG is sold to CO2 facilities
installed near power plants. However, because the commercial CO2
market is near the saturation point, new projects may not be able to
use this benefit. Currently, the geothermal sector in Turkey faces a
large risk from the Kyoto Protocol of United Nations Climate Change