Third eye
According to the British "New Scientist" magazine reported on July 14, American scientists have developed a new type of vessel that can capture energy from waves and store it in batteries, compared to existing wave energy plants. The ship only hopes to use the waves around the world to create cheaper, more environmentally friendly electricity.
Andrew Sharon, a professor at Boston University and a researcher at the Fraunhofer Center for Manufacturing Innovation, presented the latest technology at the 2011 Clean Technology Conference and Expo in Boston. This type of boat can only be driven to the right place, anchored, and then powered by waves. After the battery on board is fully charged, the vessel will return to the shore and transport the electricity to the national grid. And unlike traditional wave energy plants, these vessels do not need to be routed underwater when connected to the national grid. The cost per mile of laying fiber optic cable is 500,000 US dollars, accounting for more than half of the cost of traditional wave energy equipment.
This 50-meter-long vessel will capture energy through buoys attached to the edge of the vessel. These buoys rotate on the armrests. When the hull remains relatively stable, the buoys will rise and fall in the waves, causing the handrail to drive the generator. Electricity above watts. The battery capacity of the ship's battery is 20 watts / hour, so in order to fill the battery, the ship must stay at sea for more than 20 hours.
Unlike traditional wave energy plants, this generator system does not have to deal with storms, because the ship can be parked in the port when the weather is bad. Sharon said that fixed wave generators must be designed to cope with storms, which will greatly increase costs. New vessels can be improved by retrofitting existing vessels, so further cost savings can be achieved.
Sharon used 3D printing technology to create a ship model and tested its performance in a wave pool. He calculated that the new system's power generation cost was $0.15/kWh, which is lower than existing wave energy. The cost of equipment, the cost of generating electricity from existing wave energy equipment is between $0.30/kWh and $0.65/kWh; the cost of generating offshore wind energy equipment is between $0.15/kWh and $0.24/kWh; solar energy The cost of generating electricity for the equipment is $0.30/kWh.
Mark Jacobson, head of the Stanford University's Atmospheric and Energy Program, thinks the idea is "very creative," pointing out that batteries can store electricity for long periods of time compared to other ways of getting clean energy. use.
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