For reference, 133,350,000 metric tons is 1.81x the mass capacity of the US strategic oil storage, another grand energy storage scheme. http://www.wolframalpha

For reference, 133,350,000 metric tons is 1.81x the mass capacity of the US strategic oil storage, another grand energy storage scheme. http://www.wolframalpha.com/input/?i=(133,350,000+metric+tons)+%2F+(727+million+barrels+*+850+kg%2Fm%5E3) http://www.wolframalpha.com/input/?i=(133,350,000+metric+ton...