Hmm good so far. Presumably there will be at least some losses, since the system is open to the atmosphere. So you'll need good evidence for how safe the chemicals are. (I appreciate you may not want to tell us what they are yet)

Yep - there will definitely be a few losses, specifically in cooling tower drift (water droplets blowing out the top) and blowdown (water being expelled from tower to improve water purity). Luckily, our chemicals are all found in every day uses and not shown to have adverse environmental impacts. We definitely need to do more testing on this front to continue to build up our datasets, but our specific chemicals were selected to enable safe and widespread usage in cooling towers around the world.

>regeneration process

Is there an energy input here?

There must be. Thermodynamics tells us that cyclic processes don’t happen without energy input. Beyond that, gathering and compressing the CO2 will require energy.

The hope would be that you could build enough renewable energy capacity to power this process.

There is an energy input here. The temperatures required to regenerate the CO2 from our captured solution are low enough to be produced using renewables, and this is what we're planning on doing.