Verizon CEO Hans Vestberg is generally a straight shooter, so I was surprised by his comment
"5G network equipment and devices will consume only 10% of the energy consumed by 4G network equipment and devices,"
Almost everyone expects 5G to use more energy. It takes enormous calculating power to keep up with the speeds and complex calculations. The phone may need 10X the number of transistors as basic LTE. The base station energy demand is not as extreme. MIMO and Massive MIMO do not require major increases in power. But many network builders are warning about the expense of energy. In November, Iain Morris reports,
Guiqing Liu, the executive vice president of China Telecom, grumbled during a keynote presentation about the high power consumption of 5G basestations. His complaints were echoed and amplified by Orange's Arnaud Vamparys, a senior vice president of radio networks with the French incumbent.