▁directly ▁consum ed ▁ ▁or ▁ 0 . 2 0 % ▁of ▁the ▁total . ▁This ▁was ▁a ▁little ▁higher ▁() ▁than ▁in ▁ 2 0 1 6 . ▁ ▁System ▁loss ▁throughout ▁the ▁total ▁elect rical ▁grid ▁infrastr ucture ▁by ▁direct ▁use ▁of ▁the ▁supp liers ▁was ▁, ▁and ▁transmission , ▁other ▁system ▁losses , ▁and ▁un account ed ▁loads ▁() ▁amount ed ▁to ▁ ▁or ▁ 9 % ▁of ▁the ▁total , ▁which ▁is ▁down ▁by ▁ 0 . 1 % ▁from ▁ 2 0 1 6 . ▁Thus , ▁the ▁US ▁electric ▁distribution ▁system ▁is ▁ 9 1 % ▁efficient , ▁and ▁its ▁efficiency ▁has ▁improved ▁slightly ▁over ▁the ▁last ▁year . ▁ ▁In ▁addition ▁to ▁consumption ▁from ▁the ▁elect rical ▁grid , ▁the ▁US ▁consum ers ▁consum ed ▁an ▁estimated ▁additional ▁ ▁from ▁small - scale ▁solar ▁systems . ▁This ▁will ▁be ▁included ▁in ▁the ▁per - cap ita ▁data ▁below . ▁ ▁Electric ity ▁consumption ▁per ▁cap ita ▁is ▁based ▁upon ▁data ▁m ined ▁from ▁US ▁DO E ▁Energy ▁Information ▁Administration / E lect ric ▁Power ▁Ann ual ▁ 2 0 1 7 ▁files ▁Population ▁data ▁is ▁from ▁Dem ograph ics ▁of ▁the ▁United ▁States . ▁Per - cap ita ▁consumption ▁in ▁ 2 0 1 7 ▁is ▁. ▁This ▁is ▁down ▁ ▁from ▁ 2 0 1 6 , ▁down ▁ 7 . 5 % ▁from ▁a ▁de cade ▁ago , ▁and ▁down ▁ 8 . 0 % ▁from ▁its ▁peak ▁in ▁ 2 0 0 7