Answer
$$18,000 \ W.$$
Work Step by Step
Since $1 KW=10^3$ W, then we have
$$18 \ KW=18 \times 10^3 \ W=18,000 \ W.$$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.