In the past few months, there's been some news of problems experienced by wave or tidal developers, such as broken turbines or even a sunken wave buoy. Does that mean that marine renewable energy isn't ready for prime time? --Jim S., Nantucket, MA
What's happening in Congress with ocean renewables? Is there any movement on establishing regulations for the permitting and regulation of these new technologies? -- Debbie C., Portland, Oregon
I've heard the U.S. is behind other countries in developing ocean renewable technologies. Just how far are we behind and what is being done to catch up? --Terry N., New Haven, Connecticut
Has anyone thought of combining offshore wind farms with ocean renewable energy technology? For example, could we use the offshore base of the wind turbine to produce energy from waves, tides, or currents? -- Hillary B., Danbury, CT
Why are ocean renewables so far behind others such as wind, solar and biofuels in the United States?