When the solar panel doesn't have a load connected to it, its output voltgae will be higher than the rated voltage.I'm not sure what you mean by the open circuit voltage in full sun being greater than 12V.
I would advise using the panels to charge batteries.So, I'm just tossing around ideas of building my own inverter and thought starting with 120VDC might make things simpler and cheaper...
Why would I only be able to power something that has a resistive or switched mode power supply?
Okay. So you're saying, if I design it to provide 120VDC to the batteries (or inverter), then I should expect the voltage to be much higher (possibly high enough to damage the cells) if I disconnect a lead (possibly for maintanence). Is my understanding correct? If it's open circuited, then I wouldn't think there would be enough current to do any damage.When the solar panel doesn't have a load connected to it, its output voltgae will be higher than the rated voltage.
I would advise using the panels to charge batteries.
Just configure them to give whatever voltage is suitable for the inverter.
You may want to check out a Grid Tie Inverter if you want it to tie into your home AC.
Sure but the voltage will vary wildly.
I've never been one to follow the already paved road. I like to explore un-cleared paths in hopes of maybe perhaps stumbling upon a way to lower costs...Currenty Solar energy and cheaply don't go together. It's a long term savings but has a high initial cost.
I've never been one to follow the already paved road. I like to explore un-cleared paths in hopes of maybe perhaps stumbling upon a way to lower costs...
Thought you wanted something cheap, that OutBack is over $2,000
I personally build my own Grid tie equipment.
However thanks to our ever so diligent bureaucrats all non UL or government recognized certified Grid tie devices, solar panel, wind and micro hydro systems may be getting put in the illegal category.
But then you could go pirate AE too! Illegal as all hell but far cheaper, viable and very cost effective!
I would find a solar contractor in your area and get an idea of size and cost of a system large enough for what you need.
Spending $$$$ based on forum advice is probably not the safe bet.
1.) Have you shared/posted your schematic and design notes anywhere on line. I'm an EE and would be very interested in studying them. As long as your system is designed to shut-down when grid power is lost, then no one would ever know the difference!
2.) Pirate AE? How would you do that, steal panels off road construction equipment?