Energy Post

Daily reports on the European and Global energy transition

Carbon Capture: how all Germany’s captured CO2 can be used by the Chemical industry

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The German government is promising to publish a strategy on carbon capture, opening a door that has previously been closed to developing this technology. In the first of a series of articles, Simon Göss and Hendrik Schuldt at carboneer look at why the nation is changing its mind, before laying out the reasons why carbon capture will be essential for Germany to meet its emissions goals. Unlike the power grid, there’s no easy way to decarbonise … [Read more...]

Norway’s Sleipner and Snþhvit CCS: problems expose limitations of the science, regulations and multi-decade commitment

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The offshore carbon capture and storage (CCS) projects of Norway’s Sleipner and SnĂžhvit are often cited as good case studies for the viability of the technology. Other CCS hubs are being proposed from Malaysia to the North Sea to the Gulf of Mexico, larger by factors of 10 or more. But how viable are they? Grant Hauber at IEEFA summarises his in-depth report on the risks. Both Sleipner and SnĂžhvit, operating since 1996 and 2008 respectively, have … [Read more...]

Carbon Capture rates of 60% sound impressive. But rising carbon prices could still make you commercially unviable

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Mainstream scenarios state the unavoidable need for continued use of fossils through to 2050. For the world to stay within its carbon budget, that means the unavoidable need for carbon capture and plugging “fugitive” leaks. Chris Bataille at the Center on Global Energy Policy flags up the danger that new CCS projects with seemingly impressive capture rates of up to 60% may nevertheless become commercially unviable as carbon prices rise: that … [Read more...]

Farming Algae for Carbon Capture: new research cuts “fouling.” Scale-up in 3 years?

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Natural marine algae already account for 50% of global CO2 removal. Farming it at scale in artificial tanks or tubes would take up a fraction of the land footprint of terrestrial plants. And algae can grow up to 50 times more quickly than land-based plants. It could be a game-changer that brings carbon capture costs down and make it a commercial reality. Here, David Chandler at MIT explains how new research there can make farming algae much more … [Read more...]

Ammonia from water microdroplets: lab demonstrates cheap, low-tech production

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Very early stage research has discovered a new way of making ammonia cheaply, on a small scale (or large, if you want!), and with no harmful emissions, explains Adam Hadhazy writing for Stanford University. The process uses a cocktail of water, nitrogen gas, and a solid catalyst sprayed through a simple, low-tech instrument to make the ammonia. In contrast, the existing industry-standard Haber-Bosch process is energy intensive, large scale, and … [Read more...]

The history of evidence of CO2-driven climate change starts in the mid-1800s

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Marc Hudson at the University of Sussex gives us a fascinating review of the history of climate change science. While the Intergovernmental Panel on Climate Change (IPCC) was established in 1988, experimental evidence that CO2 traps heat dates back to the mid-1800s. The first predictions of global warming caused by humans came in 1895. The big change in perception took place in 1953. Canadian physicist Gilbert Plass (an academic whose career also … [Read more...]

CO2 emissions from Land Use: country-level data for turning “emitters” into “sinks”

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Until carbon capture technologies take off (if at all!), the world’s CO2 removals depend entirely on nature. Clemens Schwingshackl, Wolfgang Obermeier and Julia Pongratz at Ludwig Maximilian University of Munich, writing for Carbon Brief, review the latest data on “carbon fluxes” which measure whether the land is a net “source” of carbon or a “sink.” Flux measurements are categorised: deforestation, forestation, wood-harvest emissions, removals … [Read more...]

Turning Ethanol production’s CO2 by-product into E-Fuels using Wind power

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With vast open spaces, Midwest states in the U.S. produce millions of gallons of ethanol from corn as well as thousands of kilowatt-hours of electricity from wind farms every year. Research led by NREL is working on using wind power to drive electrolysers that turn the ethanol’s CO2 by-product into e-fuels, explains Erik Ringle at NREL. A typical 50 million-gallon-per-year ethanol plant releases 14 tons of CO2, a natural by-product of … [Read more...]

IEA’s global “CO2 Emissions in 2022” report: by sector, fuel, region, heating +more

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The IEA has published “CO2 Emissions in 2022”, giving estimates of CO2 emissions from all energy sources and industrial processes globally. Emissions from energy combustion increased by 423 Mt, while emissions from industrial processes decreased by 102 Mt. Emissions from various sources (sector, fuel, region, heating, etc.) are broken down, with reasons for why the change happened. The report is part of the IEA’s first global stocktake of the … [Read more...]

Adding ordinary baking soda to concrete production can cut 15% of its CO2 emissions

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Concrete production makes up 8% of global CO2 emissions. Half comes from the fossil energy used to make it (which, hopefully, can transition to clean power), and the other half comes from the CO2 that escapes during the chemical transformation. David Chandler at MIT describes research there that shows how simply adding sodium bicarbonate (yes, the baking soda you put in your cookies) during the early stages of production can remove, by … [Read more...]

The problem with CO2e: we need separate emissions data for each climate pollutant (methane, soot, etc.)

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Currently, we measure non-CO2 emissions by converting their impact into the CO2 equivalent over a 100-year period. The problem is that other pollutants can have their worst impact well within 100 years, like methane (the first 20 years is when the impact of methane is worst). Though CO2 has caused the most warming, other short-lived pollutants have contributed nearly half of the total, particularly methane, black carbon from soot, and some … [Read more...]

Direct capture of CO2 from seawater: new research cuts costs, ready for pilot in 2025

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Direct capture of CO2 from the air is already established in pilot phase in sites around the world, but costs are very high. So it is puzzling that capturing CO2 direct from the sea is yet to be tested properly. After all, the concentration of CO2 in seawater is more than 100 times greater than in the air, pointing at a process that should be much more efficient. David Chandler at MIT looks at research there that has uncovered cheaper and more … [Read more...]

New U.S. study: damage per ton of CO2 costs $185, not the official $51

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Maximilian Auffhammer at the Energy Institute at Haas reviews a new paper that suggests CO2 causes over three times as much damage in dollar terms as the figure currently used by the US government, $51 per ton. The new study shows $185 per ton of CO2 as the Social Cost of Carbon (SCC). The updated model is superior to previous models, says Auffhammer. It’s also open source, so anyone can use it, criticise it, and tweak the numbers to get … [Read more...]

Electrochemical CO2 removal: efficient, cheaper, first industrial client

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Leda Zimmerman at MIT describes a method of removing CO2 electrochemically, now being taken forward by MIT spin-off company Verdox. Electrodes are coated with polyanthraquinone. When it is charged, CO2 sticks to it. When it’s time to store it away, the charge is reversed and the gas is expelled as a pure stream of CO2. The technology works in a wide range of CO2 concentrations, from the 20% or higher found in cement and steel industry exhaust … [Read more...]

Clean Turquoise Hydrogen: a pathway to commercial readiness

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Whereas blue hydrogen from methane produces CO2, the by-product of turquoise hydrogen is pure carbon. The obvious advantage is you can make your hydrogen without the need for expensive new infrastructure to transport and store any CO2. Turquoise hydrogen is only at the start-up phase, so Schalk Cloete summarises his co-authored paper that looks at various scenarios to estimate the cost of producing the hydrogen (using molten salt pyrolysis) and, … [Read more...]