As of yet, there are no significant environmental concerns. Thermal pollution was a concern, but it has been confirmed
by numerous studies that there is little to none.
• Clean-- non-polluting
• Renewable energy resource
• Consistent: Can function full 24 hour days, unlike wind and solar energy
which depend on wind blowing and sunshine.
• Fresh Water Creation: 5 liters for every 1000 liters of cold
seawater can be created. The 210 kW Open Cycle Plant at NELHA approximatley 7000 gallons per day of function of
desalinated water. Closed-cycle plants can produce large amounts of fresh water as well, through condensation
from the humid tropical atmosphere onto heat exchangers (through which the cold seawater flows.)
• Food--Aquaculture products and temperate agriculture can
be cultivated (or assisted for agriculture through cooling of roots of temperate plants in tropics) through use
of discharge water.
• Air Conditioning can be provided.
• OTEC is non-polluting. It is probably
- OTEC is Noncompetitive in the market, in that oil is much cheaper as a resource.
- There can be difficulty in finding a large enough location which is in proximity
to a part of the ocean which exhibits proper energy differences.
- More research and technology is needed to make OTEC more cost efficient.
- Transportation of energy and desalinated water can be complicated and expensive.