Cost of capturing CO2 using membranes?
This economic model captures the cost 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…
Lost in the Forest?
…increasing albedo, and warming the planet mildly. Trees can also release compounds called isoprenes, which reacts with nitrogen oxides in the air to form ozone (a greenhouse gas), while lengthening…
Costs of home heating technologies
…data-file. The data file has been expanded to capture ground source heat pumps, blue hydrogen boilers and green hydrogen boilers. Heat pumps may save 50-70% of CO2, while raising total…
The green hydrogen economy: a summary?
…efficiency is c70%, which means that replacing 1 kWh of gas with 1kWh of hydrogen actually increases both gas demand and CO2 emissions. Capture 80-100% of the CO2 from SMR…
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…
Hot potassium carbonate CCS: energy economics?
…is to re-capture the energy of exhaust gas compression. This is achieved by re-expanding these compressed and CO2-depleted gases back across a turbine (which may directly drive the input compressors;…
Commercial aviation: fuel economy of planes?
…at a pace of 1% per annum, while Airbus and Boeing stand out as having made the most efficient aircraft. Data comparing different companies are available in the data-file. For…
Thunder Said Energy: CO2 Neutral in 2019
…tons in 2019. 61% was from air travel, 4% from broader transport. 5% was running computers, 5% was data-servers and 3% was other electricity. 13% was materials, 7% was heating/cooling…
Grid-scale battery costs: the economics?
…and the sun is not shining. The costs of grid-scale battery storage are captured in this data-file. Different grid-scale battery types include lithium ion, redox flow, lead acid, pumped hydro,…
Leading Companies in Pipeline Gas Technology?
…are described in this short note, including Air Liquide, Air Products, Kogas, Tokyo Gas, Shawcor and Ecolab. While it was an interesting exercise to screen for new patents that might…