How would you use 90V panels off-grid?

[Mike90250]

Sounds like Thin Film, 5 year panels. Thin film degrades quickly in sunlight, so don't expect long lifetimes.

[russ]

Yeah I figure, as much as I'd be saving it's a pretty good gamble.

Look at the installed cost and replacement cost - then decide if it is a good gamble - probably not.

[PVinstall]

That's how I see it too.

[cdevidal]

Look at the installed cost and replacement cost - then decide if it is a good gamble - probably not.

Amorphous Silicon. So yep, thin film. So my next task is to find the expected replacement time, (more than 5 years? This link says 25?) then calculate the replacement cost. I'll also need to plot a curve for where I expect prices to be by replacement time, and compare all of this to panels that are more durable.

If it works, I'll use 4 of the controllers in the OP tied to 7 of those panels.

Thanks guys!