It's very much a technical issue. The scale of energy utilization is one of the defining characteristics of how technologically advanced a civilization is. The total power output of the sun is 3.8 x 10^26 watts and our total power consumption is about 1.5 x 10^13 watts, which is about 0.000000000004% of sun's power output. As a civilization, we're still very undeveloped, almost non-existent.