Search results for: “direct air capture”
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Northern Lights CCS: the economics?
We have modeled out simple economics for Northern Lights, the most elaborate CCS scheme proposed by the energy industry (Equinor, Shell, TOTAL). The project involves capturing 1.3-1.5MTpa of industrial CO2, shipping it, piping it 110km offshore, then injecting it 3,000m below Norway’s seabed. Costs are expensive. But phase 2 could benefit from scale, offering “CO2…
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Cost of capturing CO2 using membranes?
This economic model captures the costs of capturing CO2 using membranes, with a base case of $50/ton to earn 10% IRRs on early commercial deployments, and a possibility of deflating to $20/ton in next-generation membranes. This requires $50/m2 membranes, with 100-2,500 GPU permeance and 125-200x selectivity.
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Renewables+gas LCOEs versus standalone gas turbines?
Levelized costs of electricity depend as much on the system being electrified as the energy sources used to electrify it. This data-file captures solar+gas LCOEs (in c/kWh), when meeting different load profiles, as a function of solar capex (in $/kW), gas prices (in $/mcf), and the relative utilization of solar vs gas.
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Costs of CCS with the amine process?
This data-file models the economics of capturing CO2 from exhaust flues using the amine process. Our base case estimate is informed by five tabs of cost data and technical papers, but all of the input assumptions can be flexed to stress-test costs. Total costs rise exponentially if it is necessary to capture CO2 from more…
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Hot potassium carbonate CCS: energy economics?
Hot potassium carbonate is a post-combustion CCS technology that bypasses the degradation issues of amines, and can help to decarbonize power, BECCS and cement plants. We think costs are around $100/ton and energy penalties are 30-50%. Potassium carbonate CCS can be stress-tested in this data-file, across 50 inputs.
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Selective catalytic reduction: costs of NOx removal?
This data-file captures selective catalytic reduction costs to remove NOx from the exhaust gas of combustion boilers and burners. Our base case estimate is 0.25 c/kWh at a combined cycle gas plant, which equates to $4,000/ton of NOx removed. Capex costs, operating costs, coal plants and marine fuels can be stress-tested in the model.
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Costs of home heating technologies
Residential heating will likely cost 5-30c/kWh, with a CO2 intensity of 0.1-0.4 kg/kWh. Gas fired boilers are lowest cost, even after paying $50/ton for carbon offsets. Electric heat pumps are most efficient. Oil furnaces and electric heaters are higher-cost and higher-carbon. The numbers can be stress-tested in this data-file.
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Commercial aviation: fuel economy of planes?
This data-file calculates the fuel economy of planes from first principles, using physics to calculate lift and drag, and comparing with actual data from aircraft manufacturers. The typical fuel economy of a plane is 80 passenger-mpg to carry 400 passengers, 8,000km at 900kmph, using jet fuel with 12,000 Wh/kg energy density. What sensitivities and decarbonization…
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Grid-scale battery costs: the economics?
Grid-scale batteries are envisaged to store up excess renewable electricity and re-release it later. Grid-scale battery costs are modeled at 20c/kWh in our base case, which is the ‘storage spread’ that a LFP lithium ion battery must charge to earn a 10% IRR off c$1,000/kW installed capex costs. Other batteries can be compared in the…
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Leading Companies in Pipeline Gas Technology?
This data-file tracks 800 patents innovating pipeline transportation of natural gas, to screen for exciting technologies and companies. 6 publicly listed firms and 6 venture-stage start-ups stood out from the analysis, commercialising next-generation materials, monitoring methods and optimizing gas distribution.
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