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Depends upon local building codes. Do roof replacements in your area require inspection? I don't believe they do here. The original pv installation would require a permit and inspection, but I don't think removal and replacement of the panels would.
In my town, you can replace a roof without any permits or inspections. However I have owned homes previously where permits were required.
An 'original' Photovoltaic installation requires a permit and inspections if it is a net-metering system. Not if it is an off-grid system. Our state requires that net-metering systems can only be worked on by licensed solar installers [and there are very few of them]. A regular electrician can not touch a net-metering system. This is why net-metering systems tend to cost roughly twice the price of off-grid systems.
Our utility companies also have it written in their contracts that you must get their engineers to review your system design and equipment list, and they must do their own inspection before you are allowed to connect a net-metering system to their grid.
It is far cheaper to buy batteries than it is to pay regulators.
Depends upon local building codes. Do roof replacements in your area require inspection? I don't believe they do here. The original pv installation would require a permit and inspection, but I don't think removal and replacement of the panels would.
I was only pointing out that it may not be a simple 2 day job when solar panels are on the roof and the roof needs to be replaced.
My son had his roof replaced after the PV was installed and it was about a day on either side. All that is removed are the actual panels. 25 panels, ~ 100 bolts All the mounting hardware and electrical work is left in place. Not a big job
Maybe it isn't technically for free if you have to give a way the excess electricity. Though you should be able to get a tax break if you are giving it to a nonprofit.
How come we can't get more solar power by having a non-profit put solar panels on homes and businesses for free in exchange for being able to sell the excess electricity? The business or home can then get the money back in a tax write off. Then you increase tax revenue by putting solar power plant businesses in the area.
There are lot of problems the main problem is that "sometimes" the night comes and in this time your solar panels can't give energy. But we still need electricity and where we can get it? But we still need electricity and where we can get it? Only from "traditional" energy sources but "traditional"plants (nuclear or coal-fired power plants) but they don't "love" working with a highly variable load and forced electricity maneuvering causes many problems and, as a result, will lead to an increase in tariffs.
For the widespread use of solar energy, first of all, we need batteries whose energy density is comparable to the energy density of fossil fuels.
There are lot of problems the main problem is that "sometimes" the night comes and in this time your solar panels can't give energy. But we still need electricity and where we can get it? But we still need electricity and where we can get it? Only from "traditional" energy sources but "traditional"plants (nuclear or coal-fired power plants) but they don't "love" working with a highly variable load and forced electricity maneuvering causes many problems and, as a result, will lead to an increase in tariffs.
For the widespread use of solar energy, first of all, we need batteries whose energy density is comparable to the energy density of fossil fuels.
Your simplistic view of the grid and the portfolio of generation resources drives you to a totally erroneous conclusion. Electrical load is not constant and it usually peaks during the day, especially during the summer. Photovoltaic generation provide valuable energy and capacity support during that time. It's value is actually quite high.
Your simplistic view of the grid and the portfolio of generation resources drives you to a totally erroneous conclusion. Electrical load is not constant and it usually peaks during the day, especially during the summer.
Yes, the electric load is not constant and there are peaks, but with solar energy (with current batteries), the load peaks will be from zero when the solar panels work to the maximum when the generation of solar energy is reduced (evening, night, bad weather).
Quote:
Originally Posted by DCforever
Photovoltaic generation provide valuable energy and capacity support during that time. It's value is actually quite high.
To smooth the peaks, the current "solar energy" is also not suitable, because you can not guarantee the constant generation of energy (for example, it rains all month or a sandstorm has started). And for smoothing the peaks, at the moment the best solution is a pumped-storage hydroelectricity. Without cheap batteries with energy density (for example like fossil fuels) it is impossible to create (with reasonable money) a grid energy storage for gigawatts.
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