Naie power station - 350 MW Coal Power Plant in Hokkaido, Japan

Naie power station is a coal-fired power generation facility located in Hokkaido, Japan, with a capacity of 350 megawatts. Owned and operated by Hokkaido Electric Power Co Inc, the plant plays a role in the regional energy supply, contributing to the power needs of Hokkaido's industrial and residential sectors. As a coal-based facility, it operates within Japan's energy mix, which includes a significant share of fossil fuels alongside nuclear and renewables. The plant's technical specifications indicate a 350 MW capacity, typical for a medium-sized coal unit. The facility operates under Japan's regulatory framework, which includes the Air Pollution Control Act and voluntary emission reduction targets aligned with international climate commitments. Environmentally, the plant's coal fuel source results in CO2, SOx, and NOx emissions, though modern control systems mitigate local air quality impacts. Its location in Hokkaido, a region with lower population density compared to mainland Japan, reduces direct exposure to urban populations. The plant contributes to grid stability and supports Hokkaido's energy security, particularly during peak demand periods.

The Naie power station's coal combustion generates CO2, SOx, and NOx emissions, contributing to regional air quality considerations. Hokkaido's relatively low population density and prevailing winds may disperse pollutants, but the plant's emissions are subject to Japan's stringent Air Pollution Control Act. The facility's 350 MW capacity places it in the medium-scale range, and its age and technology (subcritical vs. Older coal plants typically have higher emission intensities. Proximity to populated areas is moderate, with the nearest city likely several kilometers away.