Wind Power Generation

June

28th

admin

wind power generation

What is the peak usage in kilowatts of a typical house?

I’m not talking kilowatt hours here. If you added up the wattage of all the electrical appliances in a house, how much would you get? The reason I ask is that I would like to know how many watts of power generation (solar, wind, hydrogen) I would need to be totally independent of the network. Thanks

Well if you want this, then peak is not important, it is the mean (average).

Peak may be very high if you have an electric shower (9kw) on at the same time as an electric oven (3Kw), electric hob (6Kw) and a few heaters (8kw), lighting (1Kw) and sundry (kettle, toaster, hairdryer, vacuum cleaner - 5Kw). The answer is in fact so high it would blow the main fuse in most houses.

Peak usage is never usually anywehr near maximum possible.

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Now, what IS useful is knowing what the average is - and yet that DOES come down to KWH - because you can then use a battery bank and an inverter to provide the peaks of power needed - which then top back up when demand is lower.

Solar - VERY expensive, unlikly to get money back before cells need replacing. Wind - excellent - can repay themselves every year or two. Hydrogen? You jesting? Until we have LARGE tanks able to withstand 20,000 psi safely, hydrogen for home power is a LONG way off unless you live next door to the hydrogen outlet! A pig to store efficiently.

More info if you can tell us WHAT the main electricity demand in your house would be - heating / cooking / shower etc?