Aside from what everyone else has said, I had a college professor who had a great side business designing chemical plant "heat reclamation" systems where heat would be taken from exothermic reactions and joined in system with endothermic reactions occurring in other parts of the plant, thus eliminating waste from separate heaters and coolers.
Electrical-Gold1224 t1_j1x2x2e wrote
Reply to Are exothermic chemical reactions a possible avenue for energy? Or is this done regularly today already? by xombie25
Aside from what everyone else has said, I had a college professor who had a great side business designing chemical plant "heat reclamation" systems where heat would be taken from exothermic reactions and joined in system with endothermic reactions occurring in other parts of the plant, thus eliminating waste from separate heaters and coolers.