And the best Japanese companies remain world-class, producing brilliant new gadgets or reliable cars with typical efficiency.

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But the submarine changes are typical of the choices the current efficiency campaign is imposing on military planners.

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At present, the cells are only 1% efficient, as opposed to an average efficiency of 15% for Typical solar panels.

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About a third of new gas furnaces being sold today run at 90% efficiency, which still saves a typical homeowner 11% on home heating bills compared to an 80% efficient unit.

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Greater efficiency thus gets built into the system in contrast to typical arrangements whereby suppliers are empowered to work at the slowest speeds they can get away with.

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That along with a high-efficiency cooling system resulted in a 34% energy savings compared to a typical building.

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Google and Facebook operate at a Power Usage Efficiency (PUE) of 1.02-1.2, while typical enterprise datacenters operate at 1.6 or above.

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