How one company plans to store energy in giant balloons under Lake Ontario
from Financial Post
Under an unassuming building on the edge of Toronto Island, a 30-centimetre steel pipe extends deep underground before jutting out into Lake Ontario. The pipe stretches nearly four kilometres to a series of unworldly fabric balloons packed full of compressed air. An old marine salvage technology, the balloons, or airbags, have found a new function anchored under 70 metres of water.
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