Help a girl with her electricity please?

[Binnie]

An amp is a measurement of current flow

a watt is a measurment of current consumed


Your inverter can pump out 1000w, using Watts law we know the voltage, and the wattage, you can work out the amps, (google/wikipedia for a good description of the forumla)

1000w divided by 240v is 4.16amps.

take this in the case of a 3kw heater, which is the largest you will find available for domestic use

3000w divided by 240 is 12.5A (or more precisely 3000 divided by 230v is 13.04A)


This pretty much explains why 3kw heaters are the largest you can buy for domestic use, as 3kw @ 230v is 13A, our plugs are only rated and fused for 13A max.




most appliances with 5A fuses in the plugs should be ok with your 1000w inverter

---

play around with the numbers a little,

a car starter motor can be rated as high as 3kw @ 12v, how many amps? (this explains the CCA rating on batteries)

a 60w 240v bulb? (pretty much bog standard house bulb) how many amps?
a 55w 12v bulb? (bog standard car headlight bulb) How many amps?


What you use to charge would depend on consumption.

do you intend to only use 12v lighting only when its dark,

or do you want to use 12v hairdryer and straghteners etc?



Personally i'd go for as large a bank of batteris as i could afford,