Hamster wheels. Power grid. Need I say more?
Of course, if each house had a treadmill, and the human powered treadmill had to be operated an hour a day per person in the house...we'd all be a lot more fit, and that power could augment the hamster power substantially. (Actually, a treadmill is not required. Pedal powered generators are much lighter and smaller, and cost less, too. Here's a 350 watt one for $199.00 - https://www.amazon.com/Generator-Portable-Emergency-Interface-Household/dp/B0CL4X6F2R/ref=asc_df_B0CL4X6F2R?tag=bngsmtphsnus-20&hvqmt=e&hvlocint=&psc=1) 350 watts is a lot of hamsters!
Of course, if each house had a treadmill, and the human powered treadmill had to be operated an hour a day per person in the house...we'd all be a lot more fit, and that power could augment the hamster power substantially. (Actually, a treadmill is not required. Pedal powered generators are much lighter and smaller, and cost less, too. Here's a 350 watt one for $199.00 - https://www.amazon.com/Generator-Portable-Emergency-Interface-Household/dp/B0CL4X6F2R/ref=asc_df_B0CL4X6F2R?tag=bngsmtphsnus-20&hvqmt=e&hvlocint=&psc=1) 350 watts is a lot of hamsters!