A new car cost for grocery getter about $30,000. It will last from 150,00 miles to 250,000 miles. Along that way you will insure it, fuel it, maintain it, and repair it. And this is excepted and expected.
Solar on the other hand after the initial investment of $20 to $30 thousand, needs no fuel, very little up keep, and it's included in your home owners insurance policy. Besides that it does increase the value of your house and that will only increase. And it pays you back every month.
In northern states, sure the production is down in the winter, but, it's way up in the summer. In Alaska we have more annual sun hours/days then Phoenix. It evens out with net metering. It's a win win and you don't have to change the oil.
My system cost about $7,000 (I worked for a solar dealer, my labor, employees discount) and this takes over 40% of my needs. I'm going to double that solar array size which will be 75 to 80% of my needs. I have a 2600 sq ft 4 bedroom home and a separate 1700 sq ft shop.
It also very dark here in the winter for most of the day.
My system is paid for, so the benefits are obviously there. CW look to see if they can increase your monthly charges.