That link is talking about total power used by the entire site, not RF power emitted. A lot of that is going into things like additional switching capacity, adv

That link is talking about total power used by the entire site, not RF power emitted. A lot of that is going into things like additional switching capacity, advanced FPGA and DSP hardware, etc. Also, it is additive on top of older cell technology (look at the graph) - it makes sense that power consumption will go up at a site supporting 2G/3G/4G and 5G, instead of just 2/3G or 2/3/4G.