Estimate your household's 24-hour electricity requirements here. If you have different appliances, you can overwrite the pre-populated fields with your own requirements. For example, if you don't have 20W LED lights, but you do have 15W LED lights, then you can overwrite the 20W lights row with "15W LED lights" and input how many Watts (15W) the lights need in the power column.
DURATION OF USE MUST BE ENTERED PER 24 HOUR PERIOD THAT YOU WISH YOUR ITEMS TO BE BACKED UP FOR.
E.G. KETTLE - 30 MINUTES
(MEANING YOU WANT TO USE THE KETTLE FOR A TOTAL OF HALF AN HOUR IN EVERY 24-HOUR PERIOD)
There are also some blank rows at the bottom to add in whatever else you may need.