CNYC,
My chiller is about as green as it gets.
The controllers keep the power usage low, the heat low, the condensation at bay, the cpu cooler than a 'plain' water cooled system.
BUT....most people don't think it is extreme enough to warrant the cost, effort, yadyadyada.
I like it, will continue to use it and an upcoming improved version.
good luck in your search.
wj
here are some pix