Search found 636 matches

by pss
Tue Oct 27, 2020 8:21 am
Forum: RADIAN Series
Topic: Cooling options for ambient temperatures too high in garage?
Replies: 8
Views: 68

Re: Cooling options for ambient temperatures too high in garage?

I can't ever knock Hawaii. Yesterday hi temperature was 77, low 37, high today 78. All sunny. Crazy for this time of year. Fires in Orange county from high winds and no rain here in San Diego since early May. Dry warm winter will be good for solar, bad for fire risk.
by pss
Tue Oct 27, 2020 7:46 am
Forum: RADIAN Series
Topic: Cooling options for ambient temperatures too high in garage?
Replies: 8
Views: 68

Re: Cooling options for ambient temperatures too high in garage?

Not to toot my own horn too loudly, but I believe I am the most experienced in this regard. All of my equipment and battery bank is in my garage in So Cal. We had high temperature of 119 this summer. My battery temperature reached 99 degrees. Over the past 4 years I have tried using electric fans bl...
by pss
Sun Oct 18, 2020 8:23 am
Forum: OutBack
Topic: Strange event... Alerts Overflow
Replies: 9
Views: 381

Re: Strange event... Alerts Overflow

My PV output occurred between 8-9 PM my local time which is Pacific on that date, well after total sunset.
by pss
Sat Oct 17, 2020 4:36 pm
Forum: OutBack
Topic: Strange event... Alerts Overflow
Replies: 9
Views: 381

Re: Strange event... Alerts Overflow

I noticed my system show a small amount of PV generated about 10 PM the other day. Maybe moon light.
That could be why you see your charger acting like that for a bit at that time of night.
by pss
Wed Oct 14, 2020 5:14 pm
Forum: OpticsRE
Topic: Planned OPTICS RE Maintenance - October 14, 07:00 PT
Replies: 26
Views: 1198

Re: Planned OPTICS RE Maintenance - October 14, 07:00 PT

Well my Optics is a mess. It shows my system produced over 82 kWh today when I should be in mid 30's. Not to mention lots of other missing data, all kinds of weird colors now and bar graphs. Hmm. Sometimes KISS is the best technique.

Good luck with the debugging.
by pss
Tue Oct 13, 2020 5:47 pm
Forum: RADIAN Series
Topic: Newbie Q
Replies: 13
Views: 585

Re: Newbie Q

Okay folks, let me reiterate. Solar panels connected to charge controllers, a generator connected to a charger either by DC or AC or another power source as utility electricity is used to charge a battery bank. When charging a battery, power must flow into the battery until the battery is "full" of ...
by pss
Tue Oct 13, 2020 11:49 am
Forum: RADIAN Series
Topic: Newbie Q
Replies: 13
Views: 585

Re: Newbie Q

fcwlp, My post talks about battery capacity during the discharge of the batteries under load. That is why I used the voltage I did in my post. I am not aware of a 48 volt bank under load maintaining a voltage of 55. I suspect a poll of forum users would say more like 48-52 volts tops and mostly at 50.
by pss
Mon Oct 12, 2020 8:47 am
Forum: Mate3 / Mate3s
Topic: MATE3S worst product outback has
Replies: 6
Views: 379

Re: MATE3S worst product outback has

My Mate 3 and 3S have been installed since April 2016 and no failures so far. is it possible you are not using Outback supplied ethernet cables to power the Mate or there is some issue on the cabling between the ethernet output of the Mate and your gateway? In my case, my Mate is connected to a high...
by pss
Mon Oct 12, 2020 8:43 am
Forum: RADIAN Series
Topic: Newbie Q
Replies: 13
Views: 585

Re: Newbie Q

Don't know where you are located so not certain of how much sun you get on average, but according to the small amount of information you posted, your battery bank is too large for the size of your array. If the amperage capacity of the bank should be expressed as a 20 hour rate of discharge. If so, ...
by pss
Fri Oct 09, 2020 10:55 am
Forum: Off Grid Applications
Topic: Solar Panel Advice
Replies: 8
Views: 1840

Re: Solar Panel Advice

The post above with the link is either a hack or inappropriate reference to a marketing company and should be removed from the forum.
by pss
Tue Oct 06, 2020 7:54 pm
Forum: Grid Tie Applications
Topic: Grid tie being limited
Replies: 22
Views: 1155

Re: Grid tie being limited

Of course 5500 feet results in increased UV exposure and risk of skin cancer rises. And the thin oxygen at that altitude could increase your hematocrit increasing the work of your heart and risk of ischemic stroke. But it's all good. We put in 22 seer units back in May. Saved hundreds on electricity...
by pss
Tue Oct 06, 2020 1:05 pm
Forum: Grid Tie Applications
Topic: Honda/Yamaha inverter generator?
Replies: 9
Views: 5156

Re: Honda/Yamaha inverter generator?

Heres the facts: A Honda generator is high quality with a high price. An EU7000is is a very high quality generator with the best portable fuel economy of any generator and a very high price. A Champion all other Chinese generators use a generic build engine which uses a lot of oil, has very poor eff...
by pss
Tue Oct 06, 2020 12:57 pm
Forum: Grid Tie Applications
Topic: Grid tie being limited
Replies: 22
Views: 1155

Re: Grid tie being limited

We have been extremely hot up until today, over 100 degrees last week. Today is cloudy. This amount of heat attenuates my solar PV output and also results in my PV dropping to 0 and the charge controllers cutting out to "not charging" in the afternoons, so I disconnect from the grid at 12:30 PM to p...
by pss
Tue Oct 06, 2020 12:51 pm
Forum: Off Grid Applications
Topic: Programming Error?
Replies: 6
Views: 435

Re: Programming Error?

Dear Rock N Rye,

Diet or full sugar?

Should I change my username to Red Pop?
by pss
Sun Oct 04, 2020 6:10 pm
Forum: Grid Tie Applications
Topic: Grid tie being limited
Replies: 22
Views: 1155

Re: Grid tie being limited

Exactly my point. There is not enough PV being generated after local system overhead to sell at 7600 kW into the grid even if for brief periods of time. Please tell me your pv is say 10kW and only using 1 kw locally and then you can't sell the 30 amps x 240 volts.
by pss
Sun Oct 04, 2020 2:52 pm
Forum: Grid Tie Applications
Topic: Grid tie being limited
Replies: 22
Views: 1155

Re: Grid tie being limited

Okay, so you insist you had enough PV output with batteries at soc 100 percent, plus loads and system overhead to also spit back 7200 watts to the grid at the same time.
So please go back through the dates in Optics RE and post the screen shot where this took place.
by pss
Sun Oct 04, 2020 1:36 pm
Forum: Grid Tie Applications
Topic: Grid tie being limited
Replies: 22
Views: 1155

Re: Grid tie being limited

Then this is my advice: give your batteries some work to do. Drop the grid tie in the evening or early morning, let the batteries power your loads for a while using pv stored in the batteries. Then when daylight returns, you may see increased pv harvest to charge batteries, supply loads and sell bac...
by pss
Sun Oct 04, 2020 12:46 pm
Forum: Off Grid Applications
Topic: 48v Inverter or second CC?
Replies: 4
Views: 438

Re: 48v Inverter or second CC?

Well the question is how many amps is the charge controller peaking out each day? If it's near 60 amps x 24 volts, then doubling voltage to supply a 48 volt battery bank and 48 volt inverter is simple to do since you have the array capacity. You will need to make sure your array Voc is 65 or more fo...
by pss
Sun Oct 04, 2020 12:39 pm
Forum: Grid Tie Applications
Topic: Grid tie being limited
Replies: 22
Views: 1155

Re: Grid tie being limited

What am I missing here? Your images show only like 2.4k pv output. 15 amps x 240 volts is 3600 watts, 7200 for 30 amps, on top of your batteries and any loads being supplied. So in order to sell say 3600 watts to grid, your pv would need to be about 4000 plus loads and SOC near 100 percent and batte...
by pss
Fri Oct 02, 2020 5:32 pm
Forum: Grid Tie Applications
Topic: Grid tie being limited
Replies: 22
Views: 1155

Re: Grid tie being limited

On the Mate 3S there is a 3 digit setup password and a 4 digit INSTALLER password which opens up additional menus on the Mate 3S for the inverter including the amount of wattage that can be sold back to the grid.
Have you looked at the installer grid tie menus?
by pss
Fri Oct 02, 2020 1:05 pm
Forum: My OutBack Power System
Topic: array temperature question
Replies: 34
Views: 4652

Re: array temperature question

No, but have a CO detector in place and fire suppression system, surveillance cameras, alarm system, sump pump, dehumidifier, humidifier, smoke detector, pest control and do not admit dogs, cats or children to the test area.
by pss
Fri Oct 02, 2020 12:47 pm
Forum: My OutBack Power System
Topic: array temperature question
Replies: 34
Views: 4652

Re: array temperature question

What happens to the analysis if say for 6 days you have 5 hours of bright sunshine, except on 3 days it was sunny at 10 am and cloudy at 1 pm while on 3 other days it was cloudy at 10 am and sunny at 1 pm? Same amount of sunshine, just from different angles? Now, I suggest you take a panel and place...
by pss
Thu Oct 01, 2020 11:36 am
Forum: My OutBack Power System
Topic: array temperature question
Replies: 34
Views: 4652

Re: array temperature question

Let's assume that all of your time consuming work determines that given an identical amount of sunlight each year and an equal temperature each year, your angle optimization results in an annual gain of 1000 watts of production. At 20 cents a watt, that's $200.00 annually in increased production. My...
by pss
Sat Sep 26, 2020 11:14 am
Forum: My OutBack Power System
Topic: array temperature question
Replies: 34
Views: 4652

Re: array temperature question

Your post says you are using an FM80. And you said your panels are wired for 143 volts. And it is September. The FM80 has a maximum input voltage of 150 volts. In colder weather, especially in winter, the Voc will increase. In your case, if your Voc is every getting to 135 or more, I would say to ch...
by pss
Fri Sep 25, 2020 11:17 pm
Forum: Grid Tie Applications
Topic: Grid Up, Batteries Charged, Lights Go Out
Replies: 24
Views: 1934

Re: Grid Up, Batteries Charged, Lights Go Out

Well, this one shouldn't be too hard. First off, you state that your batteries are from 2013 installation. these are FLA batteries. They need constant care and watering to survive and essentially by date are at their end of life. However, assuming you were an outstanding parent and religiously water...