The best way to know what size solar system you need is to know what you need to power. The easy way is to estimate your power usage with an online load calculator, but you could also do the estimate manually: you can calculate watt hours by using each appliance’s power rating, multiplied by the time (hours) it will be running (eg appliance using 100W for 2 hours = 200Wh).
Or, compare our example usage on each kit page to your intended usage for an easy estimate.
We recommend reading our Solar Basics article to learn more. It's also important to keep in mind that there are certain things that are best run on alternative energy sources such as LPG and woodburning - learn more about that here.
