littleharbor2
Solar Wizard
It's not like Google earth has real time imagery. Any given google earth images are old, (years old, not decades) and I doubt they would be updated on any kind of regular basis.
Why This Subforum Exists.
- Thread starter Craig
- Start date
brandnewb
Going for serious. starting as newb
yes, agreed. but does one know of another source? commercial perhaps?
littleharbor2
Solar Wizard
Perhaps if you know someone at NASA or aboard the space station.
brandnewb
Going for serious. starting as newb
ok sure, let me see if I can ping my bro up there..Perhaps if you know someone at NASA or aboard the space station.
Me: yo bro you still up there?
Bro: Sure dude, what up?
Me: can you shoot me some pics please? the better the rez the better?
Bro: Dude, this is your second demerit. Please use these channels for important things only
Hi all, I use several systems (PV, SCC, Battery) in a way the SCC manufacture says you shouldn't do (hence posting in this section).
In order to keep [portable genset, mower, tractor, etc.] batteries from going flat when not used, I've got them on their own chargers.
This works really well, but it involves disconnecting the battery from the system when ever 'that bit of gear' has to earn its keep.
So far, the SCC has coped fine, but clearly this is not ideal.
So - does anyone else (admit) use regs like this and have you done anything to make it less-worse?
As an experiment, I've added some capacitors to the battery output of two SCC to see how it would behave. So far it looks good.
On the first, I ordered a PCB with 40F caps (w/ balance/limit dev.). What arrived is a 100F bank which seems to be doing its job.
The second, I added a single 24000uF cap. It was an old cap and oscillated a bit to start with, but is now stable.
In order to keep [portable genset, mower, tractor, etc.] batteries from going flat when not used, I've got them on their own chargers.
This works really well, but it involves disconnecting the battery from the system when ever 'that bit of gear' has to earn its keep.
So far, the SCC has coped fine, but clearly this is not ideal.
So - does anyone else (admit) use regs like this and have you done anything to make it less-worse?
As an experiment, I've added some capacitors to the battery output of two SCC to see how it would behave. So far it looks good.
On the first, I ordered a PCB with 40F caps (w/ balance/limit dev.). What arrived is a 100F bank which seems to be doing its job.
The second, I added a single 24000uF cap. It was an old cap and oscillated a bit to start with, but is now stable.
brandnewb
Going for serious. starting as newb
For you our dear new member, we have the unofficial 'no feelings are yet of importance ' stage.Ahhhh Im getting my feelings hurt... Wooo... quit it!
Fear not though as with consistent valid input you'll grow.
My only advice would be is to grow a thicker skin: )
Many counties in the USA have gms site to get seasonal images… counties use it to check for unpermitted buildings, and trash unapproved outside storage.
Anyone?
Can anyone think of a reason how this could go bad?
(so far, both seem to be working perfectly)
The above two systems are still behaving well, so I added a cap to the third system where the battery is routinely disconnected.
This time I used a 10000uF 25V and works just almost as well as the other two.
Watching the Batt. Voltage graphs, there is a little oscillation when the battery is disconnected, but not significant.
brandnewb
Going for serious. starting as newb
I can't advice yet on your setup. I do intend doing something similar though when I finally have the time to focus on it.
Please do not hesitate to inform us when things work well or go up in smoke
Please do not hesitate to inform us when things work well or go up in smoke
If it goes bad, I'll post pics!Please do not hesitate to inform us when things work well or go up in smoke
It's been six months with many connects/disconnects and the SCC's all seem happy.
The wild glitches are gone and you can barely see a transient on the graphs.
From what I'm seeing, I wouldn't go lower than 10000uF and my preference would be for double that.
brandnewb
Going for serious. starting as newb
playing it safe is for the uninitiated
and for pro's that don't want to deal with fire I myself have to find a middle ground
While I agree, it doesn't really apply here.
The higher the capacitance, the greater the ability to smooth transients.
Too low and it doesn't really do anything
Too high just costs more, but doesn't really work any better.
Neither too large or too small should result in catastrophic failure - it just might not work very well.
In this case, if in doubt, go bigger!
The higher the capacitance, the greater the ability to smooth transients.
Too low and it doesn't really do anything
Too high just costs more, but doesn't really work any better.
Neither too large or too small should result in catastrophic failure - it just might not work very well.
In this case, if in doubt, go bigger!
brandnewb
Going for serious. starting as newb
yes my dear friend. bigger is always better
at least that is what my wife keeps telling me. I never fully understood what she was referring to though.
Daddy Tanuki
Emperor Of Solar
if it running on voltage only it will not give two squats.. if it is running a coulomb counter it will freak out. it boils down to how you do the accounting nothing more.
It's not the accounting that is of interest - it's the potential for transients to exceed the limits of the SCC when a battery is disconnected.
Effectively, a large enough capacitor will look to the SCC like a battery is still connected. The nature of a capacitor is that it will resist a change to its terminal voltage which inturn will look to the SCC like battery charging.
Effectively, a large enough capacitor will look to the SCC like a battery is still connected. The nature of a capacitor is that it will resist a change to its terminal voltage which inturn will look to the SCC like battery charging.
Michelle Konzack
New Member
Only in unloved neighbour gardens and with RC. LOL
OffGridInTheCity
Solar Wizard
As someone who built his system in Southern Oregon - I can tell you permits/code-compliance is required in my jurisdiction. The 'roof guy' was the biggest problem - gave me scowling looks even though I used IronRidge + their 'vetted' engineering docs for the permit
Michelle Konzack
New Member
Maybe you will never post again...
