The kva are a unit of power that is equivalent to a thousand amps.

When we have the power in kva, we are giving the sum between the “useful” power (kW) reactive power, which indicates the consumption or total power input.

### How many Kva i need?

First of all we have to know the consump units and the equivalent to Kva

The consump units: This units indicates us the electricities need of every electrodomestic, most of them has a consump table

Watios (w) y los kilovatios (kw)

Watt (w) and kilowatt (kw)

Exanple: 200W= 0,2 Kw

To convert  Kw to Kva, divide it by Cosine Fi (Φ) which is 0.8:

0,2/0,8= 0,25 kva

Knowing these equivalences we can know that the average power required according to the average consumption calculated by http://shrinkthatfootprint.com

For medium family in France we will need at least 8 Kva

We recommend to have a Margin of 20% so for this example it is necessary to acquire a team of 9,6 kva

### How to know  my consump?

To calculate the exact consumption of a house is necessary to know the consumption of the electrodomestic

Example:

In our house we have

-Refrigerator 500w

-Microware 600w

-Television 300w

-Oven 1000w

The total is 2400 W or 2.4 Kwa

What equals 3 kva, under our recommendations for ideal would be to buy at leat a 3.6 kva generator