Should I defrost my frozen chicken in the refrigerator?

I have always thought that if wanted to defrost something frozen, it would save energy do it in my refrigerator instead of on the kitchen counter. Imagine if you had a fifty pound block of something. It seems to make sense that putting it in the refrigerator would decrease the cooling demand and therefore decrease the electricity consumption of the refrigerator. But when I asked AI to calculate the savings, it said it would be very little. Initially there would be a savings, but in the long run it would be about the same as leaving it on the kitchen counter. Is that correct?