U.K. switches on giant floating power plant with twin turbines

The O2 turbine, located off the Orkney Islands, generates 2 megawatts of electricity for the UK grid. Comparable in size to a Boeing 747, it weighs 680 metric tons and can be easily moved by tug boats. The turbine's blades, supported by hydraulic hinges, harness the dense seawater to produce power for 2000 homes annually. Tidal systems like the O2 offer predictable energy compared to wind and solar, with easy maintenance access due to its innovative design.

What is the power capacity of the O2 turbine?

• 1 megawatt

• 4 megawatts

• 2 megawatts

• 3 megawatts

How does the O2 turbine reach its operational location?

• It is carried by a ship

• It is towed by small tug boats

• It is driven by a motor

• It is flown by a helicopter

Why do the O2 turbine blades generate more electricity than wind turbine blades?

• They rotate faster

• They are larger in size

• They are made of a special material

• Seawater is denser than air

How many UK homes can the O2 turbine power annually?

• 2000 homes

• 1500 homes

• 1000 homes

• 2500 homes

What is a significant advantage of tidal systems like the O2?

• They can be installed anywhere

• They require no maintenance

• They are cheaper to build

• Tides are more predictable than wind and sunshine