Key Takeaways Constellation Energy expands efficiency offerings with behind-the-meter solutions and upgrades.CEG's $172M contract with the U.S. GSA funds upgrades like LED lighting and HVAC improvements.CEG stock rose 51.5% in six months, outpacing industry growth of 38.9%.Constellation Energy Corporation’s (CEG) energy efficiency products enable customers to maximize efficiency and optimize performance. The company provides behind-the-meter solutions and energy efficiency upgrades through contracts that re ...