Ohgishima Gas Power Plant | 1,221 MW Facility in Japan

Ohgishima is a gas-fired power plant located in Japan, with a capacity of 1,221 MW, making it a significant facility in the country's power generation sector. Operated by OHGISHIMA POWER CO LTD, the plant is currently operational and contributes to Japan's energy supply, particularly in the Kanto region near Tokyo Bay. Japan's power generation sector is heavily regulated, with strict emission standards under the Air Pollution Control Act and the Act on Promotion of Global Warming Countermeasures. Gas-fired plants like Ohgishima are favored for their lower CO2, SOx, and NOx emissions compared to coal, aligning with Japan's goals to reduce greenhouse gas emissions. The plant likely uses combined cycle gas turbine (CCGT) technology, which offers higher efficiency and lower environmental impact. Ohgishima's location in an industrial area near Tokyo Bay underscores its role in supporting the region's high energy demand. As Japan transitions toward cleaner energy, gas-fired plants serve as a bridge fuel, providing reliable baseload power while integrating renewable sources. The facility's capacity places it in the large-scale category, essential for grid stability and economic activity in the area.

The plant's gas-fired operation results in lower CO2, SOx, and NOx emissions compared to coal, but still contributes to Japan's carbon footprint. Its proximity to Tokyo Bay and populated areas necessitates compliance with stringent local air quality standards. The facility's age and technology (likely CCGT) influence its efficiency and environmental performance, with modern CCGT plants achieving over 60% efficiency, reducing fuel consumption and emissions per MWh.