2019 Volume 61 Issue 195 Pages 15-23
Recently, renewable energy has been increasingly introduced for electricity generation in order to reduce greenhouse effect gas. However, the amount of electricity generation by renewable energy fluctuates according to climate, weather conditions and time of day. In addition, area where electricity can be generated by renewable energy eccentrically located. Therefore, it is necessary for us to find the way of transport and storage of the renewable energy. As the way of carrying and storing renewable energy, transformation from renewable energy to hydrogen is proposed. With the support of the New Energy and Industrial Technology Development Organization (NEDO) of Japan, Mitsubishi Heavy Industries (MHI) group is developing the natural gas/hydrogen-mixed firing and hydrogen-firing technologies for dry low NOx large-scale gas turbine. MHI group has successfully tested the hydrogen-mixed firing technology for gas turbines, which is targeted to be in operation in 2025 or later. The basic design of a new combustor for a hydrogen-fired combustor is also in progress with the aim of operation in 2030 or later.