Recent content by Hedges

Have you tried both a "Real" (resistive) load with 1.0 power factor, and a low PF load like LED lamps or VFD?

Does (or did) your SolArk ever export to grid? Always importing some amount could be how it was tuned to avoid ever exporting. If this is the case, you may be able to adjust closer to zero. Risk is, when "load dump" (disconnect of a large load) occurs, it might briefly export to grid before...

What charge controller? (model number, link to data sheet) Swinging between +20A and -20A sounds like 40A PWM charge controller, with 20A load presented by inverter.

https://chemistry.stackexchange.com/questions/8498/how-explosive-is-hydrogen-gas Plus, will smell like rotten egg when overcharged. Could corrode electronics. FLA always outgasses, and things around corrode. Some people here have a plexiglass box with vent, so fumes don't reach electronics...

I'm interested in that storage funding for my Sister. The system would have 32kWh BYD HVM battery ($18k) in addition to SBSE. (Originally thinking 7.7kW, now have reservation for 7.7kW + 3.8kW SB with intention to substitute one 11.5kW SBSE when that's released Q2024.) Having $24k of funding...

State Farm will pack up their toys and go home. https://www.nbcnews.com/news/us-news/state-farm-will-no-longer-offer-home-insurance-new-customers-californi-rcna86565...

Nobody, at least not directly. But tracking (adjustable tilting) of panels is the topic, and area of land was brought up. Any array, fixed or tracking, that has multiple rows of tilted panels has to be designed with consideration of shading. When panels were 20 times more expensive, it could...

That AGM is inherently safer. With excessive over-charging, they can outgas hydrogen. I don't think that is normally an issue. Vent probably helps, and battery temperature sensor should detect, but maybe not if just one battery is experiencing it. 12 or 16 is OK. (I saw the 4 of another color...

Neutral is bonded to ground at first disconnect after utility meter. No backfeed or shock hazard. On L1 and L2 there would be the potential to backfeed. All my inverters (except an offgrid StatPower) have UL-1741 anti-islanding so are designed and listed to disconnect when grid goes down. I...

Except, a tracker doesn't take up any more space than just adding more panels. /..../..../..../ vs. /\/\/\/\ The rows of tracker have to be spread enough to not shade each other. They don't capture any more sun than the area you've got, except or maybe the lasts row if it casts a shadow...

Exterior lighting can be a big drain. That's one of the things I need to turn off to get through the night on 14kWh usable. All the old inefficient refrigerators and freezers would be another. Is this just about money? How much are you charged for usage? Price out the solutions under...

Mobile systems isolate neutral from shore power, and locally bond N to G. Some grid systems in places like Japan use a 3-pole RCD to isolate everything. In the US, grid + backup, I keep neutral (and ground) connected all the time, and use the N-G bond in my main panel at utility meter. I've...

No. Is there a grant? What's it worth? Does it involve allowing PG&E into my shorts? I have approval for about 15kW of GT PV (2x Sunny Boy with REC, will have Tigo RSD), haven't pulled the permit yet but getting close. Because I've got 3x SBS 5.0 and 2x LG RESU-10H, thinking of connecting two...

Sure, I used my Fluke with 10A range to measure current from 480VDC 7A string of PV panels. No problem, right? Well, they were connected to the input capacitor of my inverter. Blew the 11A 1000V fuse. Another time I connected an inverter with 480VDC on its capacitors to another inverter...

That's 28A imbalance, not necessarily 28A total on one leg. But to avoid overloading and having the transformer cut out, 28A per leg it is. So your idea is a separate, higher wattage 110V inverter? Your original idea was 2x 5kW inverters, 10kW total, which would be 40A at 240V, 80A at 120V...