How about using Aldi fans blowing on to a wind turbine , Colin ? Jokes aside , I did play with that a few years ago . Bought a 10 KVA 3 phase . First black out I eagerly turned it on . The Plasma TV started smoking and a few other appliances as well . Had to replace all the power supplies in the TV , motherboard in the fridge etc . I learned that not all genis are compatible . LOL. Since then a mate offered me one of those big enclosed units at a good price with low hours , powered by a 35 HP Diesel delivering a steady 12 KW/H per phase . Took a bit of sorting ,(3 way switch set up ) but now it works nice and com s on automatically . Just have to remember to start it up once a month . I thought of connecting it to a battery trickler first , but I think starting up monthly , is good for the engine as well .
We tried that with K-Mart fans Walter but couldn't get enough fans to make enough wind to move the WTG rotor which weighed over 47 tonne.
While working on the wind farms as a High Voltage Operator, part of our maintenance routines was to start up the emergency generators at the substations and let them run for at least 1 hour. The hard part was putting enough load onto the generator, as running them without load isn't that good for the diesel prime mover. The last substation that I operated actually had an Auto-Run program that would start the generator at 0800 on the second Tuesday of the month and have it run for 1 hour.