Your system will produce about as much electricity as you consume. But I would bet that a lot of your power usage happens at night. This means that you will be producing more power during the day than you are using. Two ways to deal with this. One is to install a battery system to balance demand. The other is to "sell" excess production back to the power company, and buy an equivalent amount later. This is called net metering. You are effectively selling power to the power company at full retail price.

This is the way many solar installations work, but it relies on the power company being willing to pay a high price for your excess. Once this really gets going, you can expect the power companies to push back on that. They'll want to buy your power at wholesale prices, and that means you'd be selling low and buying high. This battle will be fought in the next decade, but it's coming.