Spaz

The plastic used in the solar and other components are derived from fossil fuels. If it means 100% Fossil Fuel Free Propulsion then that is awesome.

Just a reminder, If they are invasive, they will kill off native species. This could be bad or good depending on if you have other insect issues, but often it’s bad. I would suggest fixing the greenhouse siding as see if the move elsewhere or if you want to be kind to all the other native species in your area, would recommend some ant bait to kill off the queen(s). In USA we have an ant bait that is a mix of sugar and borox which is spread around the colony before it kills them. Takes about 2-3 weeks but you will start seeing less and less ants.

At the rate they are growing, Im worried you will be overrun with them. Im hoping they dont sting or bite as they could harm any animals you have.

Interesting. Yeah glad it all resolved itself. Sucks they are invasive but either case i agree it is fun to watch them. Glad i could assist.

Looks like hatched or them adding sand or something to help them hold on or be able to stack cocoons better.

There will be empty cocoons if they hatch and maybe pieces of them if they break them down but if there are no more cocoons they probably moved them due to humidity/temp.

Edit: if you really dont like them in there and are ready to repair it, you could use a hair dryer to heat it up or ice to make them move if you care about them.

Edit 2: didnt see second picture. Probably hatched and they dumped the empty cocoons. I keep trying to figure out the species to make sure they arent Camponotus (carpenter ants) but without more location information, like nothern america or wooded area or whetever you are comfortable with sharing would be hard to tell. In any case you should probably fix the panel? To prevent mold from the discarded/bad cocoons and other junk they may leave there.

Yes, the eggs and larva and pupae (cocoons) are moved to where the best place would be for that stage of life to grow the fastest.

As an ant keeper, they moved their eggs and pupae to warm up and hatch faster. They dont look like carpenter ants so no structural damage to worry about. They do keep other bugs away but could be a pest if they farm aphids.

If it gets to hot or too cold they will move again. I would mark the panels where they are in so you know where to repair if this is undesirable.

Good luck and let me know if you have any questions.