Goldman Sachs invests $250M in compressed air energy storage
In early 20th century in London there was an alternative hydraulic "power grid" with plants (aka pumps), storages and an underground distribution network of pipes. A building, for example, could connect to high pressure water mains and use it to power elevators. Electricity eventually won, but it's interesting to see an idea coming back.Zeppelins next![1] https://en.wikipedia.org/wiki/London_Hydraulic_Power_Company