Clean energy is coming of age as a core component of today’s global power infrastructure and may be positioned to become the primary energy source of the future. This could have significant implications for investors. Wind and solar adoption accelerated clean power’s penetration of the global electricity mix. Renewable energy sources now generate 29% of all global electricity, up from the 17-19% share held from 1985-2009.1 Advances made in solar and wind technologies, and supportive policies, made this possible.