NextEra Energy has announced plans to sell $2 billion of equity units at $50 each. Each unit will consist of a contract to purchase NextEra common stock in the future and a 5% undivided beneficial ownership interest in a NextEra Energy Capital Holdings Inc debenture due June 1, 2029. Following the announcement, NextEra's stock fell nearly 5%, with a 4.9% decline in pre-market trading.