Brookfield Renewable Corp. (BEPC 2.25%) is a complex entity. It has sister units that trade as Brookfield Renewable Partners (BEP 2.18%), and both are run by another company, Brookfield Asset Management (BAM 3.15%).But given the plans Brookfield Asset Management has for investing in clean energy, high-yielding Brookfield Renewable Corp. could set you up with a lifetime of reliable income.Here's what you need to know before buying it.What is Brookfield Renewable Corp.?From a high-level view, Brookfield Renew ...