By
TIM FAULKNER/ecoRI News staff
 |
A wave-energy buoy created by URI and Electro
Standards Laboratories can generate electricity for
offshore and nearshore uses.
(Photos courtesy of Electro Standards Laboratories/URI)
|
The
eternal quest to harness the power of the sea is showing promise off the coast
of southern New England, but dwindling financial and policy support have
stalled efforts to bring it to market, according to the developers of this
unique source of renewable energy.
Modest
grants, sweat equity and student classwork, so far, have produced separate yet
similar projects in Massachusetts and Rhode Island for harvesting energy from
waves.
Wave-energy
buoys — also called wave-energy absorbers — are in development at the School
for Marine Science and Technology at the University of Massachusetts-Dartmouth.
A second public-private partnership is ongoing between Electro Standards
Laboratories (ESL) of Cranston, R.I., and the University of Rhode Island
College of Engineering.
Wave
buoys developed through both projects generate electricity from the constant
bobbing, or heave motion, of cylinders sealed within partially submerged,
watertight ballasts. The moving cylinders pump generators that deliver
immediate power for onsite use.
Prototype
buoys have confirmed that moderate East Coast waves have the potential to
support both inshore and offshore energy needs.