What does MW in Measruing Solar Power Mean?

Hi, Well I have a family of four and month after month we notice that the power bill amount keeps getting higher but we are still using the same amount of power. So my question is: I was wondering if anyone knows a good solar-system company in Miami that sells solar-systems that I can use to power my aircondioting and house. But the most important thing is that I want it to power my airconditioning because I noticed that my airco’s use alot of power.
And also it would help if the company exports the solar-system if you buy it.