According to Wikipedia, the solar panels of the ISS produce an average of about 120 kW of electrical energy, which is then used by the station's systems. Can it be converted into something other than heat? This would mean that the heat input of the systems is about 120 kW. Can I think about it this way or is it completely wrong?
Heat from the interior of the ISS is removed by heat exchangers, which then transfer the heat to the External Active Thermal Control System. The station is further heated by the sun. Is it really the case that all the heat is removed mainly with the help of these heat exchangers? If my previous reasoning is correct, they would have to take over 100,000 J per second from the air. Is it really like this or am I missing something important?