This guy in Australia tested a cheap $90 100 watt panel and one that cost a lot more. The $90 panel significantly out performed the expensive panel.https://www.youtube.com/watch?v=3-sc4rlV93g Commenters noted that the cheap panel is using PV cells of the newest technology, with all contacts on the back side and a matte finish so there's zero obstruction to light and the non-glossy surface reflects less light. The expensive panel has older style cells with buss bars across the front and a super glossy surface.
I wonder what $ those cheap panels are in American Dollars, if they're even available here. Less than $1 per watt is like when hard drive prices dropped to $1 a megabyte - for a 500 megabyte drive. On Sunday, March 10, 2019, 3:38:07 PM MDT, Dave Matthews <[email protected]> wrote: On Sun, Mar 10, 2019 at 5:15 PM Chris Albertson <[email protected]> wrote: > You get about 17 megawatt hours ($2800 at my current rate) from one > $400 panel before the 20 year warranty expires. That is a 30% rate > of return on the initial investment. Itis no wonder that Telsa is > offering to place panels on your roof for free, but they retain > ownership of the panels. They just want your roof. A 30% return on > investment look good to them. > I wish I could get 17 Mwh / panel over 20 years. Based on my current production rates I would expect about 6 Mwh per panel. I have a 40 panel 10.4kw ground mounted array in western NY. It is facing dead south and is almost zero obstruction. Production was 2016 - 13.2 Mwh, 2017 12.4 Mwh, 2018 11.7 Mwh. Year to date is 1370 kwh. It all comes down to location (42.7190° N) and how much snow piles up on the panels in the winter. Solar is not even close to viable here. I put it in when it was about 60% subsidized by the state and the feds. That made is about a 10-11 year payback. Our rate including delivery is $0.10/kwh. _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
