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How giant concrete balls on ocean floors could store renewable energy

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Summary
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77% Informative

Fraunhofer Institute's StEnSea project has been exploring the possibility of using the pressure in deep water to store energy in the short-to-medium term.

Each hollow concrete sphere measures 30 ft (9 m) in diameter, weighs 400 tons , and will be anchored to the sea floor at depths of 1,970 - 2,625 ft ( 600 - 800 m) Each sphere has a capacity of 0.4 megawatt-hours - enough to power an average US household for about two weeks .

VR Score

74

Informative language

71

Neutral language

44

Article tone

formal

Language

English

Language complexity

56

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not offensive

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not hateful

Attention-grabbing headline

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Known propaganda techniques

not detected

Time-value

long-living

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