{"query_echo":{"q":"","filters":{"analysis_type":["technical feasibility review"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'technical feasibility review' for facet 'analysis_type' is not in the controlled vocabulary."}]},"total":{"value":1,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=technical+feasibility+review","stability":"beta","ai_marking":{"digital_source_type":{"uri":"http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia","name":"Created using Generative AI"},"notice":"Summary and key insights are generated using artificial intelligence."},"results":[{"id":"ember-000322","url":"https://climateinsightsdirectory.org/document/ember-000322","title":"Hot air: carbon removals risk high costs and underdelivery in the UK","publisher":{"name":"Ember","organization":"ember"},"document_type":"report","language":"en","date_published":"2025-11-27","source_url":"https://ember-energy.org/app/uploads/2025/11/GGRS-Short-Analysis.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The report argues that the UK risks spending billions in public funds on unproven carbon removal technologies, such as power-BECCS and DACCS, which face significant delays and high costs. It highlights that a single project at Drax biomass power station could require £30 billion in subsidies, exceeding the entire national carbon capture and storage budget. The analysis notes that no commercial-scale project has yet begun construction or captured carbon, and warns that power-BECCS may not deliver genuine removals due to feedstock and supply chain emissions. The author recommends prioritising proven decarbonisation methods like renewables and heat pumps over these high-risk technologies.","ai_generated":true,"unit":"ember-000322#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The UK government has significantly reduced its near-term expectations for greenhouse gas removals. The 2023 Carbon Budget Delivery Plan projected 5.6 MtCO2 annual removals by 2030, but the 2025 plan lowered this target to 0.7 MtCO2.","ai_generated":true,"unit":"ember-000322#insight-1","date_modified":"2026-10-23"},{"text":"Converting the Drax biomass power station to power-BECCS is estimated to cost £30 billion in public subsidies (in 2023 prices), which is more than the UK Government's total announced funding of £21.7 billion for all CCUS and hydrogen projects over 25 years.","ai_generated":true,"unit":"ember-000322#insight-2","date_modified":"2026-10-23"},{"text":"Commercial-scale direct air carbon capture and storage (DACCS) costs remain far above the UK Government's target of £200 per tonne. In Iceland, the Climeworks Orca facility reportedly had costs as high as $1,000 per tonne as of March 2025, while the Mammoth project reported costs above $600 per tonne.","ai_generated":true,"unit":"ember-000322#insight-3","date_modified":"2026-10-23"},{"text":"There is a high level of uncertainty regarding the delivery of the UK's carbon removal pipeline; no project has moved beyond the pilot phase or begun construction, and no carbon has been captured at commercial scale as of November 2025.","ai_generated":true,"unit":"ember-000322#insight-4","date_modified":"2026-10-23"},{"text":"The effectiveness of power-BECCS as a genuine carbon removal method is disputed because woody biomass feedstock can have significant carbon payback periods and high supply chain emissions. Drax imported over 99% of its feedstock in 2024.","ai_generated":true,"unit":"ember-000322#insight-5","date_modified":"2026-10-23"}],"climate_tags":["bio-energy with carbon capture and storage","carbon capture and utilization","carbon budget","renewable energy","heat pump","electrification"],"geography_discussed":["Iceland"],"frame_perspective":[],"analysis_type":["cost analysis","policy assessment","technical feasibility review"]}]}