Great up to this point, and given that the average electric bill in this area is between $250 and $300 per month, $75 a month is a $125-$225 savings. Even if you have to pay for it yourself, with no grants or incentives, the $40,000.00 system you propose still only costs you $166.66 a month, which is still a substantial savings over the current bill.
The closest thing to a $40,000 system I could find was a AEE-Solar kit for $37,500. This kit is a 5.44 kW system, which would produce roughly 775 kWh/month during the peak sun season. 775 kWh times 9.86¢ (National ave. kWh cost) is $76.42 saved. So, you are spending $166.66, in order to produce a maximum of 775 kWh which would cost you $76.42 from the grid. Catch that? You spent $166.66 to save $76.42.
This output assumes: You have all the panels at a perfect angle, there is no dust or obstructions of any kind, and the panels are bran spankin new. Keep in mind that every year, power production will decrease by 1%. After ten years, 679 kWh, for a savings of $66.95 on the peak month.
Plus, the average household consumes about 30 kWh/day. This setup produces 25 kWh/day at it's peak. So you'll still have an electric bill coming in. In hotter climates, 50 kWh/day is the average, so you'll still have a very large bill coming in.
But no longer than it would if you were to borrow $40,000 for a new car, so that doesn't matter. I find it absolutely amazing that people will readily go out and spend $30-40k for a new car and never really think about the cost, but they turn into blithering idiots when they talk about spending the same amount of money to power their own home. What are you, APARTMENT DWELLERS???
I would never spend $40K on a new car. That's insane unless I have money instead of a mattress to sleep on at night, and burn cash to cook food on the grill. I own my own home, my electric bill is $50 in the middle of summer, and $30 in the dead of winter. If I ever spend more than $400 for electricity in a years time, it's been a really hot summer.
We're talking about adding 12-15% to the construction costs of a brand new home here, and NOT having an electric bill, EVER. If you're building a new $225,000 home, and adding another $30,000 to it, assuming a 30 year fixed at 5.75%, you're only talking about adding $175.00 a month, which, based on the average electric bills around here, means that you're COMING OUT AHEAD between $75 and $125 a month, EVERY month. If you're REALLY smart, you'll take that money, EVERY month, and throw it in with your mortgage and have it applied to the principle and your home will be paid off somewhere between 25 and 28 years instead of 30. HELL, the interest savings alone are worth that! If you applied the $75 a month to your mortgage, you'd save $38,077 in interest alone, and if you applied the $125 a month, you'd save $57,677!!! And NONE of that is counting the CHECK (as opposed to a BILL) that you'll be getting from your local electric company for providing power TO the grid instead of buying it FROM the grid.
Ok so for $30,000 you are going off grid. That would require a $6,000 battery backup. So the closest thing to the $24,000 remaining would be Evergreen 3.68 kW kit for $23,300. This would produce roughly 577 kWh a month on average, in a high-sunlight area like Tucson, AZ. At the national average rate of 9.86¢/kWh, that's $56.89. Catch that? Your spending $175/mo to save what would cost you $56.89/mo.
Keep in mind the average home uses 30 kWh a day while this system produces 19 kWh, so be ready to cut your life style.
And I see no justification in the Constitution for Social Security, Medicare, Medicaid, Welfare, Food Stamps, WIC, Section 8 housing, HUD, the Department of the Interior, the Department of Education, the Department of Health and Human Services, the Department of Agriculture, the Department of Commerce, the Department of Labor, the Department of Energy, the Department of Veteran Affairs, the Department of Housing and Urban Development, or the Department of just about anything else you'd care to name EXCEPT the Department of Defense, the Department of State, the Department of Transportation, and the Department of the Treasury, so how about we cut the "poor me" and "immoral subsidies" routine and get off the backs of a program that actually SAVES the government far more money than it spends.
It doesn't save the government far more money when they have to take money from me, to pay people like you. Further, you are right, very few of those are valid under our constitution. This means we need to cut them, not add more unconstitutional programs.
Do you have ANY idea what it costs to build a brand new coal fired power plant? Do you have any idea to what extent the DOE grants "immoral subsidies" to power companies so that they can build one of these new power plants? First things first. The new Alliant power plant in Wisconsin is projected to be over $1.2 BILLION dollars for their new 300 megawatt plant. And that's just to BUILD it, not to operate it. The proposed AMP Ohio power plant is currently projected to be near, if not over $3 BILLION dollars for a 1000 megawatt plant. Who foots the bill for this, YOU DO! The DOE gives "loans" (at unbelievably low interest rates) to these power companies to build their plants, using YOUR tax dollars, and the only thing you get for your money is higher taxes and an electric bill. At least with "on the grid" home generated power, the people who are providing the power to the grid are actually giving YOU something for your money, in the way of your local power company NOT having to build a new plant for BILLIONS of dollars.
In order to not have to build a new power plant, everyone would have to buy an expensive solar kit which none would do without rebates and government hand outs. 300 Million rough population, times $40K for a small solar kit, equals $12 Trillion dollars, $6 Trillion would come from my pocket in the form of tax subsidies and higher electric bills. Of course the biggest electrical users are business and Al Gore, so we'd still need a Billion dollar power plants in order to have jobs.
So option A: we build a 3 Billion dollar power plant, and everyone just pays for their own power. B: We build a billion dollar power plant and have a $6.1 trillion dollar tax / subsidy scheme where the entire public pays for expensive solar kits that will need replaced in 20 years max.
I vote for plan A.
As far as the system needing repair, again, SO WHAT? Isn't your $40,000 car going to need maintenance and repair? Doesn't your existing home need maintenance and repair (unless you really ARE an apartment dweller). You see, this is what we call a STRAWMAN argument, and not even a very good one at that.
The point of a car or home is to provide transportation and shelter. Therefore repairs are acceptable and expected expenses.
The point of a solar panel kit is to save money. Repairs and upkeep expensive figure into that economic equation and are completely valid points.