GTCCへの水素導入時の電源運用評価

抄録

The unit commitment of the thermal power units is calculated when hydrogen is introduced to gas turbine combined cycle, GTCC, units; the capacity of power units in the discussed area consists of average capacity of existing power units in Japan. The hydrogen is supposed to introduce to the flexible GTCC units which cover the load frequency control, LFC, of the power grid. Three cases are supposed, i.e., 30vol% hydrogen to 10 units of 250MW GTCC case, 100vol% hydrogen to 250MW GTCC case, and 100vol% hydrogen to 600MW GTCC case, respectively. Relatively much decrease of CO₂ emission intensity of discussed power grid is derived in the 30% hydrogen introduced to 10 units of 250MW GTCC case when the hydrogen delivery cost is reduced. CO₂ emission intensity is much less in the 100vol% hydrogen supplied to 250MW and 600MW GTCC case; the decrease of hydrogen cost is favorable for the further decrease of the CO₂ emission intensity and operational cost of the thermal power units.