Brookfield Renewable (BEPC) (BEP 1.42%) is a cash flow machine. The renewable energy producer generates very stable cash flow backed by long-term power purchase agreements with utilities and large corporate buyers. It uses that cash to pay dividends and grow its portfolio of cash-producing clean energy assets.That strategy has paid off for shareholders over the years. Brookfield Renewable has consistently beaten the S&P 500:TimeframeBrookfield Renewable Annualized Total ReturnS&P 500 Annualized Total Return ...