Re: [AFMUG] battery nerd question

2023-08-16 Thread Robert
We love Morningstar 60mppt for lower end solar, ethernet ( no security ) complete configuration available and priced lower than most other stuff for a serious amount of solar.   For bigger the 600Volt is available, for bigger than that the signature solar controllers will do about anything you

Re: [AFMUG] battery nerd question

2023-08-16 Thread Robert
Surprisingly, not a lot.  10-15% which in line with their summer production.  Winter with snow, people were reporting production 20-25% higher and much higher when the panels are covered with snow behind and sunlight there were videos of 20% production when regular panels were zero.   This was

Re: [AFMUG] Forrest's Time Post

2023-08-16 Thread Forrest Christian (List Account)
Two methods I didn't mention that this group might already be familiar with: 1) They still distribute time via telephone. Call 303-499-7111 to hear the WWV (colorado) broadcast or 808-335-4363 for WWVH (hawaii) 2) You can dial in with your dialup modem and get time codes. 300 baud up to 9600

Re: [AFMUG] battery nerd question

2023-08-16 Thread dmmoffett
That’s building strictly for a 20W load though. Building for a tiny load does make the costs easier. But if you wanted a second AP, bigger backhaul, or anything else you can’t do it without growing the whole power system proportionally. Steve was talking a 50W load today. The real high

Re: [AFMUG] battery nerd question

2023-08-16 Thread Chuck McCown via AF
I set up a CO2 powered deicing system once. It was kinda successful. My business partner published pictures of it and we instantly had BLM cops saying we were dumping antifreeze. Yes we were but it was propylene glycol. They didn’t care. I told them that their own BLM aircraft use this

Re: [AFMUG] battery nerd question

2023-08-16 Thread Chuck McCown via AF
I presume they are more expensive? Is the watts per square foot the same? -Original Message- From: Robert Sent: Wednesday, August 16, 2023 3:00 PM To: af@af.afmug.com Subject: Re: [AFMUG] battery nerd question Or just get bifacials... The can do that and the incoming solar from the

Re: [AFMUG] battery nerd question

2023-08-16 Thread Robert
We are at 39 _but_ the snowfall this winter was epic.   Rivaling Chucks...  We aren't on tippytops but with high panel angles and decent breaks in the coverage we only had to clear panels out a few times with the tracked ranger...  Still got stuck a few times requiring one rescue aid   We

Re: [AFMUG] battery nerd question

2023-08-16 Thread Mathew Howard
I'm at about the same latitude as you. My experience is that having extra battery capacity is more helpful than oversizing the solar panels, so I'd probably go with Chuck's numbers for batteries if I was putting something together now, and solar panels are cheap now anyway, so figure 400 watts (if

Re: [AFMUG] battery nerd question

2023-08-16 Thread Robert
Or just get bifacials...   The can do that and the incoming solar from the back side increases snowmelt 2x, as tested by youtubers last lear...  I was on the fence but the videos were pretty convincing...   The performace boost in winter is way more than summer... On 8/16/23 3:14 PM, Chuck

Re: [AFMUG] battery nerd question

2023-08-16 Thread dmmoffett
I end up closer to Chuck’s estimate. In Southern or Central NY State I’m 2 degrees north of Salt Lake City. 42N What’s your latitude? From: AF On Behalf Of Mathew Howard Sent: Wednesday, August 16, 2023 4:11 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] battery nerd

Re: [AFMUG] battery nerd question

2023-08-16 Thread Chuck McCown via AF
We had a storm blow a set of panels over so they were pointed down. They were 10 feet off the ground and we were getting significant power from the sunlight reflected off the snow. If I was going to build another system that is super critical, and unaccessible in winter, I think I would

Re: [AFMUG] battery nerd question

2023-08-16 Thread Mathew Howard
Yeah, that's what I'd do in a difficult to access location. I did a site like that here (Wisconsin) with 200 watts of panel (I think the actual load is around 15 watts, so a bit more than 10x), and ~4kwh of battery. It had some issues in January a couple years, but I attributed that more to using

Re: [AFMUG] battery nerd question

2023-08-16 Thread Robert Andrews
When not buried in a historic snow load or positioned correctly so that the snow falls off the panels and a 200 foot cliff... On 8/16/23 12:46, Chuck McCown via AF wrote: Using my historical rules of thumb for off grid, snowed in mountain top location for a 20 watt load I would do the

Re: [AFMUG] battery nerd question

2023-08-16 Thread Chuck McCown via AF
Using my historical rules of thumb for off grid, snowed in mountain top location for a 20 watt load I would do the following that has never failed me: Load X 20 so 400 watts of panel. So less than $200 these days. 2 weeks of battery autonomy. 20 x 24 x 14= 6720 watt hours. $2K of batts

Re: [AFMUG] battery nerd question

2023-08-16 Thread Mathew Howard
It depends on how much stuff you're trying to run. A minimal micropop can be done with less than 20 watts of load (single AP and backhaul). I can put together a solar setup for around $1000 that will power that. On Tue, Aug 15, 2023 at 12:50 PM wrote: > I can save you the suspense. If you have

Re: [AFMUG] battery nerd question

2023-08-16 Thread dmmoffett
Definitely worth asking about. They have done unmetered service here in the past for CATV amps, but I think NYSEG told us they aren't doing any new ones. -Original Message- From: AF On Behalf Of Chris Fabien Sent: Tuesday, August 15, 2023 10:52 PM To: AnimalFarm Microwave Users Group

Re: [AFMUG] Forrest's Time Post

2023-08-16 Thread Chuck McCown via AF
Like to know more about “other esoteric methods” From: Mike Hammett Sent: Wednesday, August 16, 2023 7:40 AM To: AnimalFarm Microwave Users Group Subject: [AFMUG] Forrest's Time Post Forrest posted this to the NANOG mailing list. It was pretty good, so I copied it here. --- I've responded

[AFMUG] Forrest's Time Post

2023-08-16 Thread Mike Hammett
Forrest posted this to the NANOG mailing list. It was pretty good, so I copied it here. --- I've responded in bits and pieces to this thread and haven't done an excellent job expressing my overall opinion. This is probably because my initial goal was to point out that GPS-transmitted