Houses and other buildings flex a great deal more than you think. They are built to do so, in fact. Why waste that flex? Set up a system to capture that energy and store it in batteries or return the power to the grid. The real innovation would be the boards that were used to build the dwelling in the first place. Sure it would be more expensive, but if each 2x4 was made to be a part of the energy capture system, the could interlock and make power each time each board was flexed. People walking around the house would generate power in that case. Throw a party and generate the power needed to run the speakers that pump the good tunes for your guests....
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