"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. Itβs also one of the main reasons why geothermal energy and electric heat pumps are not advancing in the modern glasshouse industry."
I'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.
I 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.
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. Itβs also one of the main reasons why geothermal energy and electric heat pumps are not advancing in the modern glasshouse industry."