You can run things off of your solar system, you just have to have a big system and small loads. With a 230w system I can turn on every light, fan and even the furnace and have the solar provide the power. That power stops as soon as a cloud goes by or the sun goes down, so having a battery is kind of important.
I would suggest getting a general feel for what you need and how you will set it up before picking out specific components. Each interacts somehow with the others and a poor choice now can be limiting as you go along.