Operator
Ladies and gentlemen, welcome to the Dominion Energy first-quarter 2021 earnings conference call. [Operator instructions] I would now like to turn the conference over to Mr. Steven Ridge, vice president, investor relations.
Steven Ridge --
Vice President, Investor Relations
Thank you, David, and thanks to everyone for joining today's call. Earnings materials, including today's prepared remarks, may contain forward-looking statements and estimates that are subject to various risks and uncertainties. Please refer to our SEC filings, including our most recent annual reports on Form 10-K and our quarterly reports on Form 10-Q for a discussion of factors that may cause results to differ from management's estimates and expectations. This morning, we'll discuss some measures of our company's performance that differ from those recognized by GAAP.