Ohi Diesel Power Plant, Tokyo, Japan - 1,050 MW Capacity

Ohi is a diesel power plant located in Tokyo, Japan, with a capacity of 1,050 MW. It is owned by Tokyo and is currently operational, contributing to the country's electricity supply. The plant uses oil as its primary fuel, which is common for peaking or backup power in Japan. Japan's power generation sector is regulated under the Act on Promotion of Global Warming Countermeasures and the Electricity Business Act. Diesel plants like Ohi typically operate during peak demand or as reserve capacity. The plant's capacity places it in the large-scale category for diesel plants, which are less common than gas or coal units in Japan. The plant's location in Tokyo, a densely populated urban area, means it must comply with strict emission standards under Japan's Air Pollution Control Act. Its role is likely to provide grid stability and meet peak demand, especially after the Fukushima incident, which led to a shift in energy policy. The plant's environmental impact is managed through advanced emission control technologies.

The Ohi plant's use of oil as fuel results in CO2, SOx, and NOx emissions, which are regulated under Japan's Air Pollution Control Act. Its location in Tokyo, a densely populated area, requires stringent emission controls to minimize local air quality impacts. The plant's age and technology (likely older diesel engines) may result in higher emissions per MWh compared to modern combined-cycle gas turbines.