So my pond is a good distance away from my electricity and at the moment that's not really an option because i'd have to clear some brush on top of running wire a long way.

The pond is well fed though so I can pump new cold water into it each night.

I'm reading where aeration during the summer day can cause the cool deeper water to get hot and be harmful to the fish so I'm wondering what my options are here.

It's roughly 3/4 acre average 8-10' deep more or less. I'm going to try and get hard numbers I think 12' is the deepest though.

Some solar aeration systems have batteries, but it seems to add 2-3k+ to the cost of the system. Should I just pony up and run electricity or can I solve this with solar?

I'm in South TX so heat is my primary concern.