Hi unique007,
On a fundamental level, the power-outage on your end means that you just didn't answer the final IR question (but the timer would have kept counting down). Since IR has NO impact on your Overall Score, your Quant and Verbal Scores should be in the system (and your final IR question would be registered as an 'unanswered question' when the 30 minutes for that section expired). This is all meant to say that you should probably have a registered Official Score, so there might not be anything to worry about. Official At-home GMAT Scores are usually available within 1 week (sometimes as soon as 2-3 days, but sometimes longer), so you'll just have to wait a bit to see how all of this turned out.
GMAT assassins aren't born, they're made,
Rich