Just finished installing 26 (Philadelphia Solar 430w) panels on APA Ready Rack ground mount system. Overall recommend in terms of value & cost for an engineered & permitted mounting system. Uses helical ground piles driven by a skid steer or mini-excavator with auger motor. (Can use ground...
The “PV is bad because it lacks inertia” seems a bit misleading to me. Don’t large scale commercial PV systems have virtual inertia “dampening”? What Claude.ai says:
Synthetic Inertia in Inverters
Synthetic inertia (also called virtual inertia) refers to control techniques that allow...
SkyRack was one that really interests me, however the cost is up there, partially due to high freight cost (to Texas).
Also check out Unirac GFT, which is very similar to SkyRack, but might have local distributors which could be cheaper shipping or even pickup options?
Also, I have been...
Went with APA ReadyRack. It was a turnkey system (didn't need to source the steel tubing locally) and everything was shipped to me.
My particular installation used helical piles, which I was able to install with my mini excavator using a hydraulic auger, so no concrete piles needed (which drives...
+1 would like to see a configurable delay for return to grid after grid is considered "stable".
Had a bunch of thunderstorms here in North Texas this weekend, and had what I'm guessing was a strike nearby, taking out a neighbors transformer with it. The power flickered in and out several times...
There are locking connectors like NEMA L6-30 & L14-30, but those are only for 240V 30A. I'm a bit surprised there are no NEMA standard Locking 240V 50A connectors/receptacles.
The real issue is that once you get past about 32A you really should be hardwiring the 40A+ connections, if continuous...
Tangentially related, this is a _very_ cool "Interactive Map of US Power Plants"
(Has all kinds of generation & storage details)
https://experience.arcgis.com/experience/bb8c905b75f84d908ab83f579498d085/
related, but different views:
https://www.gridinfo.com/united-states
Nice @Brucey didn't think about ship-to-shore stuff. This would probably work just great - and has the added benefit of being intentionally used in outdoor/wet environments, although I could see there being some AHJ inspectors who may not like them...
FWIW, AI said this to me when inquiring...
1x GB, hw v1, sw IAAB-1300
1x FB21, hw ?, sw FAAB-2122
1x PowerPro outdoor battery
(Units purchased from SS in March.)
It's a wild issue because from whatever I can see there is nothing logged on GB or FB. If SS/EG4 can see something other hidden log, they haven't told me what is it. My units...
publishing to local mqtt would be good, or just expose a simple metrics endpoint on http, i.e. outputting the stats in json and/or the way everything is going these days, a prometheus metrics endpoint (i.e. in prometheus exposition format).
Folks can scrape these every 10s from some other...
Curious, was this when you had the GB on-grid or off-grid?
I have been experiencing this when I have had the system off-grid (grid contactor open), with full solar, almost full battery, no heavy loads.
(The system does flicker when kicking on heavy loads like AC compressors, but this issue is...
It's all grey. I'm surprised it's a v1, but according to the versioning doc my model number ends in 01. :( I wanted to use Eaton BR breakers, but guess not.
Email SA and tell them you would like to see GB status alongside the Inverter statuses.
Since they are _very_ closed-source & proprietary, the only thing that will make them add that is enough paying or prospective customers asking for the feature.
FYI Solar DIY Texans,
Senator Zaffirini has introduced SB 1036 aka "Residential Solar Retailer Regulatory Act"
https://capitol.texas.gov/BillLookup/History.aspx?LegSess=89R&Bill=SB1036
subject: Relating to the regulation of residential solar retail transactions; requiring an occupational...
I forgot to mention it in my letter, but reading through it, it's also not clear to me how this could potentially impact my ability and costs of sub-contracting my own electrician(s) for assistance, e.g. in final hookup, etc, of a (mostly) self-installed solar install.
Thinking about creating a separate forum post for this in case anyone else has run across this issue.
I have GridBoss + FlexBoss21. Latest firmware on both.
I just had the system commissioned a few days ago, and I'm not exporting, awaiting PTO.
I have 3 large loads hooked up to Smart Ports 1-3...
My electrical engineering knowledge is just enough to be dangerous, but:
Without even taking into account hybrid solar/ess systems, what happens when a large inductive load shuts off? Would there be a transient current flow back to grid (even for microseconds duration) due to inductive...
Looks like Signature Solar just made it available for pre-order. The price isn't what I had hoped for, or what some folks had predicted.
It's only less than $400 cheaper than FlexBoss21, not really a deal in my book. It would have needed to be closer to 3500 for me, so will likely just go with...
@Tommytwotone curious if this problem was ever resolved and if so what was the issue?
I only have one flexboss21 + gridboss + powerpro battery, but while awaiting PTO, I have been running off-grid mode in the day off of battery + solar, and I have had several times where the inverter seems to...
Yes, both were completely powered down, and it happened after powering them up.
When powering GB off a second time to try to resolve, I had the Hybrid Inverter 1 breaker open on the GB - the GB was completely dark (even dongle lights on GB were off). FB was probably still on, but GB was...
I'm in the process of purchasing EG4 GridBoss + FlexBoss21 from Signature Solar. I'm installing the ground mount racking, panels, conduit, etc myself. I'm looking to sub out the installation and wiring of the GridBoss/FlexBoss into my main residential 200A service, along with some extra...