Brookfield Renewable (NYSE: BEPC)(NYSE: BEP) has been a great growth stock over the years. The renewable energy producer has grown its funds from operation (FFO) by an average of 10% per share each year over the last decade. These include: Inflation escalation: Brookfield sells the bulk of the renewable energy it generates under long-term, fixed-rate power purchase agreements (PPA) to utilities and corporate buyers.