Direct Air Capture (DAC) units suck in air, extract CO2 & then store it underground or make it available for other uses (greenhouses, algae farms, concrete production). Stripping CO2 from air can be energy-intensive, reducing the overall benefit. But Southern Green Gas (SGG), an Australian company, is trialling a new solar-powered DAC technology.The SGG DACs are small (about the size of 2 household fridges), so can be set up in an array much like a solar farm. With the added benefit of local manufacturing & creating globally tradeable negative emissions certificates - this is one worth watching.https://www.southerngreengas.com.au/negative-emissions.html
ERM’s Dolphyn (Deepwater
Offshore Local Production of HYdrogeN) project is exploring offshore hydrogen
production option - a 10MW floating wind turbine with built-in electrolyser will
convert sea water into green hydrogen. There is no water constraint, no electricity
grid connection issue and the hydrogen can be shipped out by ammonia-powered
vessel soon (EU’s ShipFC project)?
https://www.theengineer.co.uk/erm-dolphyn-green-hydrogen/
"We have the lowest energy costs in a zero emissions world and it becomes an advantage in processing Australian minerals. That can become a huge industry.We also have big advantages in our huge areas of land for capturing carbon in plants, in the soil, exporting carbon credits, growing biomass for industry because we won't be making plastics and petrochemicals out of oil, gas and coal, we'll be making them out of biomass and if we get our act together we can do that more cheaply than others."...https://www.abc.net.au/7.30/what-will-the-post-covid-economy-look-like/13194362
