Technical FAQs 3

Where is Sumitomo Electric launching a long-duration energy storage project?

In December, the company announced the start of commercial operations at a 1MW long-duration energy storage (LDES) project in Niigata prefecture, further north of the coast of the Sea of Japan. At the time of the announcement, Sumitomo Electric said it had reached a total installed capacity of 50MW/176MWh of VRFBs across Japan.

What happened to Japan's solar energy production in 2023?

Although it was joined by other regions of Japan in experiencing generation curtailment after that, in 2023, it saw 6.7% of its total solar PV and wind production curtailed, which the REI noted was double the levels of the grids of fellow rapid solar adopters California, US, and Australia in the same year.

Is Kyushu a hotbed for solar?

Kyushu enjoys some of Japan’s highest solar irradiance and feed-in tariffs (FiTs), which were introduced in 2012 and have led to the island becoming a hotbed of solar PV deployment. However, there have been challenges to integrate this uptake of renewables.

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