PPL Corporation PPL, a diversified utility holding company, has operations in the U.S. and the UK. PPL Corp.’s organic growth strategy, systematic investments in utility infrastructure development projects and focus on enhancing customer service are commendable.However, volatility in fuel prices, stringent environmental regulation and unpredictable weather patterns remain potential setbacks.Estimate Trend & Surprise HistoryInvestors should note that Zacks Consensus Estimate for the first quarter for earnings of 75 cents per share has decreased by 1 cent over the last 60 days.Coming to the earnings surprise, PPL Corp. has surpassed the Zacks Consensus Estimate in three out of the last four trailing quarters, resulting in a positive average surprise of 5.94%.Zacks Rank: Currently, PPL Corp. has a Zacks Rank #2 (Buy). However, since the latest earnings performance is yet to be reflected in the estimate revisions, the rank is subject to change. We have mentioned below some of the vital information from this just-revealed announcement:Earnings: PPL Corp. reported first quarter 2016 earnings of 67 cents per share, lagging with the Zacks Consensus Estimate of 75 cents by 10.7%Revenue: PPL Corp. missed the revenue estimates in the first quarter. The company posted revenues of $2,011 million in the first quarter, down 9.1% compared with our consensus estimate of $2,213 million.Key Stats: In the first quarter, domestic retail delivery decreased 8.4% year over year while domestic wholesale delivery decreased 26.0%. Meanwhile, international electricity delivery fell 2.4% year over year.Check back for our full write up on this PPL earnings report later!Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report PPL CORP (PPL): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research