4 ms·
In the linked article about passive glasshouses here https://solar.lowtechmagazine.com/2015/12/reinventing-the-greenhouse.html https://solar.lowtechmagazine.com
by prennert 7y ago
In the linked article about passive glasshouses here https://solar.lowtechmagazine.com/2015/12/reinventing-the-greenhouse.html https://solar.lowtechmagazine.com/2015/12/reinventing-the-gr...
It says:
"Another issue with a solar powered greenhouse is the lack of a CO2-source. In modern greenhouses, operators aim to have a CO2-level at least three times the level outdoors to increase crop yield. This CO2 is produced as a byproduct of the fossil fuel based heating systems inside the greenhouses. However, when no fossil fuels are used, another source of CO2 has to be found. This is not only an issue for solar greenhouses. It’s also one of the main reasons why geothermal energy and electric heat pumps are not advancing in the modern glasshouse industry."
- elric 7y agoI'm sure I remember reading about some kind of solar setup that used part of the electricity generated to extract CO2 from the air and feed it into a greenhouse. Seems to be hard to google for, given that CO2 and greenhouse automagically translate to climate change, instead of actual greenhouses.
- deleted 7y ago[deleted]
- deleted 7y ago[deleted]
- noahl 7y agoI wonder if anyone uses greenhouses as carbon capture for traditional power plants, rather than running their own mini-power plant mostly for the CO2 output.
- makomk 7y agoDunno, but if you're going to do that you pretty much might as well turn it into a CHP setup and use the waste heat to warm the greenhouses as well.