I live in the North East. I'm getting a Solar Roof installed.
Only you can answer if the cost is worth it.
Here are my calculations.
My cost is approximately 78k
To replace my roof (which I need to do; I literally have a bucket sitting a room), is 20k. That brings me to 58k
The Federal tax credit is approximately 17k. That brings me to 41k
The state will give me another 1k for a Solar tax credit. That brings me to 40k
The state will give me 5k for purchasing 3 power walls. That brings me to 35k
The total cost of Solar is 35k
Everything I'm calculating is on a 10-year time span
My monthly energy bill is 300/month. Tesla says I will reduce my bill by 30% or ~$100 per month.
That means I'm prepaying my energy bill by $12k
I'm now down to 23k for solar
Each year I will sell ~6 SREC's at $70*6 = $420 /yr or $4.2k in 10 years.
I'm down to 18.2k
3 power walls will provide 1 day of battery backup.
To purchase this would be: Generator: ~ 5k and installation ~5k = 10k
I'm down to $8.2k
Then you need to ask yourself, "Am I ok with paying $8.2k, financed over 10 years at a very low-interest rate: paid for my Tesla stock appreciation and Bitcoin?"...My answer is YES. I have more than the above invested in altcoins and tesla because I believe they are the future.
We plan to stay at our house for at least 25 years (warranty period for the roof).
There is a 90% chance we will recoup the cost if we ever sell our house.
It makes our house unique at least for the first 10 years. (more companies will offer solar tiles and I'm proud we are at the vanguard of this)
My pluses
We get better tiles than architectural shingles
We get battery backup when the power goes out because we have "overhead" lines.
We lower our electricity bill (we are pre-paying)
We have upgraded our 100-year-old home with something more modern, those go with a lot of the changes we've made internally. This house will last another 100 years. Plus it is in a desirable neighborhood.