How many giga watts is a exa watts?

Answer 1

there is one Giga Giga watt in one Exa watt. So one Exa watt = one Giga Giga watt or 109 Giga watt

or

one Exa watt = 1018 watt and one Giga watt = 109 watt

then

one Exa watt = 109 Giga watt

or

one Exa watt = one billion Giga watt = one thousand million Giga watt

Answer 2

1 exawatt is equivalent to 1,000,000 gigawatts.