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OpinionLetters

Letters | Japan should put more eggs in the renewable basket

Readers discuss Japan’s energy strategy, and how Hong Kong can do better on paper and plastic bottle recycling

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Tokyo Electric Power Company’s Kashiwazaki-Kariwa nuclear power plant stands along the seaside in Kashiwazaki, northern Japan in 2021. Japan is about to restart the world’s biggest nuclear power plant. Photo: Kyodo News via AP
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Japan’s restarting of the world’s biggest nuclear power plant is a bold response to energy insecurity, economic stagnation and climate imperatives. In contrast to intermittent, weather-dependent renewable sources such as wind and solar, nuclear power offers reliable 24/7 electricity – crucial to bolstering Tokyo’s industrial competitiveness.

In the face of structural constraints on large-scale renewable deployment, the restart could reduce Japan’s reliance on imported coal and liquefied natural gas, which cost about US$67 billion last year, while helping Tokyo to mitigate geopolitical risks by limiting exposure to external shocks and supply chain disruptions.

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Yet nuclear power alone cannot secure Japan’s energy future. Renewables must expand faster. Removing approval delays, overcoming land-use challenges and reducing market uncertainties are essential in scaling solar, wind and other proven technologies.

The country’s strategic energy plan for 2040 – with an energy mix including renewables at up to 50 per cent and nuclear at 20 per cent – offers policy stability to businesses and promotes decarbonisation.

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Tokyo’s focus on next-generation technologies like perovskite solar cells and nuclear fusion reflects a desire to reduce dependence on Chinese-made solar panels. China dominates the manufacturing and supply chains of solar panels and wind turbines and is rapidly becoming a nuclear powerhouse, with substantial investments in fusion.
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