Freedom Power           

  A Renewable Energy Company

Typically Average Weekly Output (AC kWH) Using the chart found here. Calculate the amount of power you would typically use per week. Match this to the number below to find the correct system for your needs.
Starter	1-DC	2-DC	3-DC	2-AC	3-AC	4-AC	5-AC	6-AC	7-AC	8-AC
2.54	5.08	10.15	15.2	9.1	13.7	18.3	27.5	36.5	45.7	54.8
2.04	4.07	8.15	12.2	7.3	11.0	14.7	22.0	29.3	36.7	44.0
1.98	3.95	7.90	11.9	7.1	10.7	14.2	21.3	28.5	35.6	42.7
1.81	3.62	7.24	10.9	6.5	9.8	13.0	19.6	26.1	32.6	39.1
1.66	3.33	6.66	10.0	6.0	9.0	12.0	18.0	24.0	30.0	36.0
This information is approximated for a south facing array with no shade at a 30 degree tilt angle.

 

Using this chart you can estimate how much power you use. The wattage for most appliances is listed on them. Just take the number of hours you use each item in a day and fill in the chart. Multiply the total watt-hours a day, by 30 and you will know estimated monthly usage.