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ClimateQuiet 8d · day 9

JERA's ammonia co-firing at Japan's largest coal plant called economically unviable

Researcher Kurasaka Hideshi questions whether ammonia blending at Hekinan power station can scale to meet 2050 decarbonization targets.

newest coverage 8d agosummary written 8d ago2 pieces186 likes & upvotes7 comments XMastodon

What to know

  • JERA's Hekinan plant achieved 20% ammonia substitution on one 1 MW reactor, but scaling to meet 2050 decarbonization goals would require ~25× Japan's current ammonia supply.
  • Researcher Kurasaka questions whether the project has economic or environmental merit, characterizing it as wasteful and infeasible.
  • The pilot highlights tension between fossil fuel plants' decarbonization claims and the physical constraints of ammonia-based transition pathways.

The dispute Whether JERA's ammonia co-firing represents a viable decarbonization pathway or a publicity stunt masking the impossibility of scaling ammonia supply. · positions read across 2 posts and comments

most voices

Ammonia co-firing is greenwashing with no real climate or economic merit.

  • “無駄な投資なのでやめた方がいいと思いました。”

    Kurasaka Hideshi · X ↗

Kurasaka Hideshi ResearcherJERA Power utility

JERA's ammonia co-firing at Japan's largest coal plant called economically unviable
x.com

How it unfolded 2 developments, newest first · click a bar or a number to jump posts

Peak 1 piece in two hours at Sep 15, 4 AM; 2 pieces over 9 days (2 posts) Sep 15, 4 AM — 1 piece · 1 post — X 1Sep 15, 6 AM — quietSep 15, 8 AM — quietSep 15, 10 AM — quietSep 15, 12 PM — quietSep 15, 2 PM — quietSep 15, 4 PM — quietSep 15, 6 PM — 1 piece · 1 post — Mastodon 1Sep 15, 8 PM — quietSep 15, 10 PM — quietSep 16, 12 AM — quietSep 16, 2 AM — quietSep 16, 4 AM — quietSep 16, 6 AM — quietSep 16, 8 AM — quietSep 16, 10 AM — quietSep 16, 12 PM — quietSep 16, 2 PM — quietSep 16, 4 PM — quietSep 16, 6 PM — quietSep 16, 8 PM — quietSep 16, 10 PM — quietSep 17, 12 AM — quietSep 17, 2 AM — quietSep 17, 4 AM — quietSep 17, 6 AM — quietSep 17, 8 AM — quietSep 17, 10 AM — quietSep 17, 12 PM — quietSep 17, 2 PM — quietSep 17, 4 PM — quietSep 17, 6 PM — quietSep 17, 8 PM — quietSep 17, 10 PM — quietSep 18, 12 AM — quietSep 18, 2 AM — quietSep 18, 4 AM — quietSep 18, 6 AM — quietSep 18, 8 AM — quietSep 18, 10 AM — quietSep 18, 12 PM — quietSep 18, 2 PM — quietSep 18, 4 PM — quietSep 18, 6 PM — quietSep 18, 8 PM — quietSep 18, 10 PM — quietSep 19, 12 AM — quietSep 19, 2 AM — quietSep 19, 4 AM — quietSep 19, 6 AM — quietSep 19, 8 AM — quietSep 19, 10 AM — quietSep 19, 12 PM — quietSep 19, 2 PM — quietSep 19, 4 PM — quietSep 19, 6 PM — quietSep 19, 8 PM — quietSep 19, 10 PM — quietSep 20, 12 AM — quietSep 20, 2 AM — quietSep 20, 4 AM — quietSep 20, 6 AM — quietSep 20, 8 AM — quietSep 20, 10 AM — quietSep 20, 12 PM — quietSep 20, 2 PM — quietSep 20, 4 PM — quietSep 20, 6 PM — quietSep 20, 8 PM — quietSep 20, 10 PM — quietSep 21, 12 AM — quietSep 21, 2 AM — quietSep 21, 4 AM — quietSep 21, 6 AM — quietSep 21, 8 AM — quietSep 21, 10 AM — quietSep 21, 12 PM — quietSep 21, 2 PM — quietSep 21, 4 PM — quietSep 21, 6 PM — quietSep 21, 8 PM — quietSep 21, 10 PM — quietSep 22, 12 AM — quietSep 22, 2 AM — quietSep 22, 4 AM — quietSep 22, 6 AM — quietSep 22, 8 AM — quietSep 22, 10 AM — quietSep 22, 12 PM — quietSep 22, 2 PM — quietSep 22, 4 PM — quietSep 22, 6 PM — quietSep 22, 8 PM — quietSep 22, 10 PM — quietYesterday, 12 AM — quietYesterday, 2 AM — quietYesterday, 4 AM — quietYesterday, 6 AM — quietYesterday, 8 AM — quietYesterday, 10 AM — quietYesterday, 12 PM — quietYesterday, 2 PM — quietYesterday, 4 PM — quietYesterday, 6 PM — quietYesterday, 8 PM — quietYesterday, 10 PM — quietToday, 12 AM — quietToday, 2 AM — quiet 12
Sep 16Sep 17Sep 18Sep 19Sep 20Sep 21Sep 22now · 4:43 AM ET
  1. 2

    Analyst details ammonia scale mismatch to meet 2050 targets

    An analysis circulating on Bluesky breaks down Kurasaka's findings: the Hekinan plant's 4th reactor (1 MW) achieved 20% ammonia substitution, requiring ammonia equal to half Japan's current industrial supply. Meeting JERA's 2050 decarbonization pledge would require roughly 25 times that volume—mathematically implausible with current ammonia capacity.

    “2050年までに､JERAが脱炭素を達成すると言ってますが、単純計算でこの発電所だけで、今のアンモニア量のだいたい25倍弱が必要になります。無理でしょ。…”
    — muchonov (via Kurasaka Hideshi analysis)
    • kanageohis1964@fedibird.com

      muchonov: "倉阪秀史氏のポスト。JERA碧南火力発電所のアンモニア混焼について。 「5基の炉のうち4号機（100万kw）の20％をアンモニアに代替することができたということでした。そのために必要なアンモニアは現在の日本における工業用アンモニアの半分に相当します（略）2050年までに､JERAが脱炭素を達成すると言ってますが、単純計算でこの発電所だけで、今のアンモニア量のだいたい25倍弱が必要になります。無理でしょ。」 https:// x.com/sustainablezone/status/2 099791438951469516 " — Bluesky https:// bsky.app/profile/muchonov.bsky…

      kanageohis1964@fedibird.comMastodon8d agoview on Mastodon ↗
  2. 1

    Kurasaka visits Hekinan plant, questions ammonia co-firing viability

    Researcher Kurasaka Hideshi visited JERA's Hekinan coal-fired power plant and assessed its ammonia co-firing pilot. He concluded the investment is wasteful and should be abandoned based on conversations at the site.

    “JERA碧南火力発電所に行ってきました。日本最大の石炭火力発電所で､アンモニア混焼を進めています。話を伺った限りでは､無駄な投資なのでやめた方がいいと思いました。…”
    — Kurasaka Hideshi

    • JERA碧南火力発電所に行ってきました。日本最大の石炭火力発電所で､アンモニア混焼を進めています。 話を伺った限りでは､無駄な投資なのでやめた方がいいと思いました。

      @sustainablezoneX8d ago186▲view on X ↗

What people are saying 0 voices from 0 sites · best of 2 · verbatim

Still unanswered
  • How much industrial ammonia capacity would need to be built to support widespread coal plant ammonia co-firing in Japan?