Preamplifier at NIF (image) American Institute of Physics Caption This image shows the preamplifiers of the National Ignition Facility. The unified lasers deliver 1.8 megajoules of energy and 500 terawatts of power -- 1,000 times more than the United States uses at any one moment. Credit Damien Jemison/LLNL Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.