Search results

Sounds good, can you recommend a batt monitor? I plan on 4 LiFePo4 batts, 2 in series for the 24 volts, then a second pair in series to make a 400Ah 2S2P 24V bank. Considering the costs, I prefer to NOT kill them. I have my LFPs set up for an external (1110v) batt charger so that each in the...

All, "TBD" is simply a placeholder and not a design methodology, meaning my intent to pursue some real number crunchings before deciding on inverters, etc. FYI: "etc" is also a placeholder. I have much research to do this winter. This thread has raised the bar so to speak, I have a new baseline...

Applying your numbers to my PV array: (4 panels X 20V voc/ea) X 115% = 92V Still within suggested scc's (in this thread even) with a PVmax of 100V. But I agree totally with fudge factors, including the Rule-of-Thumb 25% safety margin and have decided on the Tracer 4215AN or 5415AN each with...

Voc from factory is 19.4, but they don't provide temp info. Four panels amounts to <100 MaxPV. Numerous reading sources indicate "safety factor" of 25%. I'm there even with a Tracer 3415 and similar scc makes and models. As indicated earlier, I am planning on the Tracer 4215 or Tracer 5415, both...

Nope... all LiFePo4's, from ExpertPower I'll look into a decent battery balancer, unless anyone would like to make a recommendation. EPever uses TRIRON for some "new and improved" Tracer lineups. Marketing.

Apologies for this, I thought I had most of my design nailed down. Not so much. Am stuck with my existing panels, 12v200W, am already invested, so no upgrades considered. Voc is 19.2; have earlier connected 2 panels in series and registered 36V. Regardless, a Max PV of 150V with the 4015AN...

Ans: somwere between ignorance and stupidity, my bad. Yep, recently learned this. This led to my 12V battery bank theory. Size matters,...wind-wise, was attempting to keep panel profile low. Turns out the NewPowa 24V 200W panel is slightly smaller than my existing 12v 200W panel, thereby...

Forgot to include these... Batts are 12 volt 100Amp hour, I don't care to deal with 24V batteries. Panels are 12v 210watt each. I plan to configure 2 panels in series for 24V, and the other pair likewise, resulting in 2 PAIR of panels (4 total) feeding 24V to the controller. Voc of each panel...

Clarifications: Wood working tools will be used 1-at-a-time. This is a hobby shop, nothing more. 12 inch DeWalt compound saw draws 15amp, compressor is likewise small, 12 amp I recall. So I will use a surge clamp to determine an appropriate inverter. TBD. Outback actually does support Lithium...

All, am inviting your opinion: My design is for an 800watt off-grid as follows: (usage- run 110V wood working tools, sm compressor, sanders, charge cordless tools, vacuum, etc.) 4 200W mono panels, 2 pair in series (NewPowa) 3 or 4 100Ah LiFePo4 batts (ExpertPower) Vote: Either 60 or 80 amp...

Whew! I'm planning on a 4x200W system and recently stumbled on the Epever TRIRON 4215N 40A Solar Controller. Per all my readings on the Triron, a 24V series/parallel panel config appears to fill my dreams. Per the Amazon product seller's page, the Triron definitely supports LiFePo4 batts. I was...

My newbie mistake, tripping again over controller "output" vs input. Thanks for this reminder! Helps me decide on a "hybrid" design, a 600W system mid-way between Will's 400W Classic and the 800W Road King.

Among other items, kit provides 4 (four) 100W 12V mono panels and their 40A 12/24V mppt controller. Their online kit diagram clearly shows the 4 monos in series... and according to basic solar math, this results in 48V. From the description of their 40A controller, it handles 12 and 24V... ahhh...

Sounds like I'm on the right track, I much appreciate your information. As you mention above, individual panel alignment is my other challenge -- house is oriented SW/NE, no options. That, and some level redundancy, is how I came to focus on 2 separate and smaller arrays. The "morning" array...

The monocrystaline HQSTs I'm looking at (12v 100W) run nominally 4.5A to 6A, per their data sheets. The Epever SCC I'm considering is the 40A connected to 4 of the above HQSTs. It should be capable of handling 6 of these HQSTs in parallel, more if in series? Unless I'm missing something (quite...

This is exactlky what I needed to find, Many Thanks

Closer to Laramie WY than to Fort Collins, north of Rocky Mtn Natl Pk.

PERFECT! I suspected this to be the case, but nothing beats confusion (me) like fact! Am now proceeding to order my 400W system (panels and 40A Epever controller) as a base for my system. Am confident that expanding this systemwith more of the same (Epever, HQST) will proceed without angst...

Craig, 1) I like the idea of a redundant system, however small it might be, something is better than nothing if only to keep the batts happy. 2) here in northern Colorado we have an abundance of solar, but that includes having panels aligned accordingly. I am able to align panels to best fit the...

Newbie puzzle... am planning to install a basic 12v 400W system for my woodworking man-cave (was the old storage shed), based on the Classic 400 blue print. Later, for redundancy and financing, I plan to expand that into a 24v 600-to-800W system, either as a single large array with large...

Welcome to NoCo. Am also "retired", living among the granite and Ponderosas, black bear, raptors and mullies. The Project here is adding solar to renovated storage-shed-become-woodworking-man-cave.

NM Will, Our cold is only on occasion, but we all seem to manage here. I would not trade it for hot NM summers however. Both states are equally beautiful in their own ways. Our recent snow event here has left a white comforter across the Rockies. Have traveled NM since forever, and it...

Since retiring to NoCO (northern Colorado) , have delved into solar for a variety of projects. "Projects" are the password for anyone retired but not dead yet and looking for adventures. Initial project: power for a glider trailer, as these ships are techy and require a steady and ready LiFePo...