In the house you just run your natural gas line into a small compressor.. no storing it, just turn it on when you need it. It takes several hours to fill with

In the house you just run your natural gas line into a small compressor.. no storing it, just turn it on when you need it. It takes several hours to fill with this setup, but it's not a big inconvenience. In the car the gas is just stored compressed/liquified in a tank. It takes up a lot of space, so you end up sacrificing some trunk space. Again, just another tradeoff.