$Brookfield Corp(BN)$ made very bullish predictions about energy in its 2026 outlook:"Global electricity demand from data centers will grow 17% annually by 2050. Massive infrastructure investment will be required to keep up with the demand.Global power investment is expected to reach $3.3 trillion in 2025, with over 60% directed toward renewables, storage, and grid optimization."They see grid infrastructure as the key bottleneck since more than 70% of global transmission lines are over 25 years old, and interconnection queues for new renewable projects are stretching close to a decade.This is where two investment themes stand out:- Grid infrastructure- Behind the meter arrangementsGrid will necessarily need to be upgraded, and transmission capacity