grid voltage

12 LETTERS · STARTS WITH G

grid voltage is a valid 12-letter word worth 17 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

G2R1I1D2V4O1L1T1A1G2E1

2 + 1 + 1 + 2 + 0 + 4 + 1 + 1 + 1 + 1 + 2 + 1 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does grid voltage mean?