Identify three different renewable energy sources.
Compare those sources from a policy and regulatory perspective to determine which of those sources will become the most significant source for renewable energy in 50 years.
Explain why your choice will be the most significant renewable energy source.
How do specific demands for energy (e.g., transportation, heating, electricity) affect your choice?
From a policy and regulatory perspective, what do you think has to happen in order to make your choice a reality in 50 years?