- Markets for biofuels reached $20.5 billion and are projected to grow to $80.9 billion by 2016;
- Wind power is projected to expand from $17.9 billion to $60.8 billion in 2016;
- Solar PV will grow from a $15.6 billion industry to $69.3 billion by 2016;
- The fuel cell and hydrogen market will grow from a $1.4 billion industry to $15.6 billion over the next decade.
Together, these four clean-energy technologies are projected to quadruple to more than $226.5 billion within a decade.