Klemetsrud Waste-to-Energy Carbon Capture (CCS)
This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
How this atlas is made · What “last verified” means · What “source-checked” means
A carbon-capture retrofit for Oslo's single biggest emitter was paused in 2023 when costs spiked. It restarted in 2025 — but the CO2 won't actually be captured until 2029.
what does this mean?
The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 7 more in Oslo · 🌡️ Heat & cooling guide · ⚡ Energy projects
Hafslund Oslo Celsio is fitting Norway's largest waste-to-energy plant — source of 17% of Oslo's direct emissions and much of its district heating — with carbon capture. Paused in 2023 over rising costs, the project restarted after a January 2025 investment decision; construction is underway, targeting startup in Q3 2029, with captured CO2 shipped to offshore storage.
📊 Impact
Designed to capture 350,000 tonnes of CO2 a year — about 90% of the flue-gas CO2 from the plant, roughly 200,000 tonnes of it biogenic and so counted as negative emissions — once construction finishes; this is a planned/design capacity, not yet a measured operating result, since the capture facility itself has not been built. Captured CO2 is to be piped to the state-backed Northern Lights terminal for offshore storage under the North Sea.
🎓 Lesson
A state-backed climate flagship can still stall for years on cost overruns alone: Klemetsrud's technology was never the obstacle — its 2023 pause and 2025 restart came down entirely to who would cover a bigger bill.
Sources
Continue exploring
Compare this project
Explore the wider context
📎 Cite this project
1001 Smart Cities (2026). “Klemetsrud Waste-to-Energy Carbon Capture (CCS)” — Oslo, Norway. The Smart City Atlas. https://1001smartcities.org/projects/oslo-klemetsrud-carbon-capture/ (last verified 2026-08-04). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.