[RE-wrenches] time delay relay

timer has finished. Does anyone know what this type is called or any other help? Thank you, Larry Crutcher Starlight Solar Power Systems ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email

Re: [RE-wrenches] Inverter/AC pump compatibility question

You can tell the grey-beards from younger wrenches…..A square wave is generated and modified to act like a sine wave, thus, it is a modified square wave. As I see it, in order to deceive the consumer, the term "modified sine wave" was created. Larry On Apr 26, 2016, at 5:57 AM, Carl Hansen wr

Re: [RE-wrenches] 60 Amp PV breaker tripping

The thread subject was "Classic 150 100 amp output breaker tripping?” It was on 10-26-15 from Daniel Tittmann. He never posted the solution but there are several suggestions. Larry Crutcher Starlight Solar Power Systems On Apr 19, 2016, at 9:04 AM, Kristopher Schmid wrote: Hi Al

Re: [RE-wrenches] DC to DC converters

spec so if you can get your hands on the unit, apply a variable DC supply to discover the true operating range. You may be surprised that it functions just fine with your existing power system. Save cost and KISS. Larry Crutcher Starlight Solar Power Systems On Mar 28, 2016, at 12:44 PM

Re: [RE-wrenches] Rapid Shutdown

in a UL listed assembly) Thanks, R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 3/15/2016 2:57 PM, Starlight Solar Power Systems wrote: > I thought this idea (attached) was a simple solution for array and batt

Re: [RE-wrenches] Rapid Shutdown

fault relay control. A simple SPST switch in series with the 12 volt Aux output will allow shutdown. Add a fire alarm output relay for auto-shutdown in case of fire. Seems like a simple, cost effective way to me. Any comments Ray, Pete, Bill? Larry Crutcher Starlight Solar Power Systems

Re: [RE-wrenches] Aquion Batteries

Thanks Dana. The new curves don’t look much better. Look at the space between the curves and realize that they are only 2A load difference. If we extrapolate to 17 amps the capacity will be greatly reduced. They need to show what the voltage sag is under full 680 Watt load. Has anyone actually

Re: [RE-wrenches] Aquion Batteries

I too am interested in anyone that has installed these. I had some concerns back on Nov 10, 2014. Here is a copy/past from that conversation: Something does not add up to me. The cell has a voltage discharge curve way outside that of RE equipment, 1.75 Vpc down to 0.5Vpc. I can't see how this t

Re: [RE-wrenches] Plastic washers

array in event of a near lightning strike. Also, if the washer is between the two metals, how will you isolate the bolt that puts them together from not touching the sides of the holes? Perhaps you need to look into non-conductive fasteners as well. Larry Crutcher Starlight Solar Power Systems

Re: [RE-wrenches] Plastic washers

One thing I have noticed is that many rack materials are a mixture of aluminum and other metals. I found out when trying to weld the material. It would be good to know just how dissimilar stainless is compared to the rack metal. Jay, I would ask them what good is the insulator if the bolt/screw

Re: [RE-wrenches] LiFePO4; WAS Availability of Powerwall Batteries

the price now. I like those customers. Thank you, Larry Crutcher Starlight Solar Power Systems On Jan 23, 2016, at 1:28 PM, Marco Mangelsdorf wrote: Aloha Larry, To take a step back…what’s the compelling value proposition from the homeowner’s perspective to incur this non-trivial

Re: [RE-wrenches] LiFePO4; WAS Availability of Powerwall Batteries

storage…lead, your years are numbered. Larry Crutcher Starlight Solar Power Systems On Jan 22, 2016, at 5:35 PM, August Goers wrote: Larry, To get back to your previous response to me – I’m fully onboard with the benefits of lithium batteries. For now, they seem like the clear successor to

Re: [RE-wrenches] LiFePO4; WAS Availability of Powerwall Batteries

ar to what we do except our LFMP battery package EMS and CPU is designed by the manufacturer exclusively for GBS batteries. Perhaps a better term would be LFP battery dealer or integrator. Larry Crutcher Starlight Solar Power Systems On Jan 22, 2016, at 12:30 PM, Allan Sindelar wrote: W

Re: [RE-wrenches] Availability of Powerwall Batteries

temperatures. The same thing applies for our RV customers that only use them for a few months each year. Larry Crutcher Starlight Solar Power Systems On Jan 22, 2016, at 9:26 AM, August Goers wrote: ...I’m not convinced that any of the other lithium products are ready for prime time. They

Re: [RE-wrenches] Solarworld

. Larry Crutcher Starlight Solar Power Systems On Jan 21, 2016, at 8:46 AM, drake.chamber...@redwoodalliance.org wrote: So far I have purchased mostly from known distributors, so haven't encountered the cheap knockoff issue. Is this happening much? What is the evidence that this is gong on?

Re: [RE-wrenches] Battery Charge Settings.

experiencing battery capacity loss. Larry Crutcher Starlight Solar Power Systems On Jan 19, 2016, at 9:01 AM, Steve Higgins wrote: The testing that we have done with our batteries, is well over 90% completed has actually increased cycle life and performance even at the higher charging voltages… We

Re: [RE-wrenches] battery-based inverter

. Larry Crutcher Starlight Solar Power Systems On Jan 15, 2016, at 3:37 PM, toddc...@finestplanet.com wrote: the old sw inverters had something called "generator support", where if the loads exceeded the generator's output, the inverter would forego charging and sync with,

Re: [RE-wrenches] Fwd: Refractometer reading has me stumped

://support.rollsbattery.com/support/solutions/articles/430-corrective-equalization-instructionsI recommend a long equalization process Larry Crutcher Starlight Solar Power Systems On Dec 21, 2015, at 10:16 AM, Allan Sindelar wrote: Wrenches, For years I have carried and used a refractometer to accurately measure

Re: [RE-wrenches] 4 ways to keep a battery for a long time

On Dec 17, 2015, at 11:55 AM, Ray Walters wrote: ...but as far as I can tell, every other storage chemistry has similar characteristics: lower capacity at low temps, a high temp limit, non-linear cycle life depending on DOD, Puekert's exponent relating capacity vs charge/ discharge rates, vol

Re: [RE-wrenches] HuP Conundrum

No hydrometer, no log book, many cells at different SG and probably no battery monitor = neglect, wasted resources and, as you said, unbelievably expensive consequence. I hope you can communicate to the customer that this was his fault and not the battery maker. Larry On Dec 17, 2015, at 8:

Re: [RE-wrenches] Module recommendation for a specific off grid situation

I have been trying to purchase Panasonic modules for years. Where do you get them? Thank you, Larry Crutcher Starlight Solar Power Systems On Dec 17, 2015, at 12:27 AM, Chris Worcester wrote: Hi Allan, Try the Panasonic 240’s Chris Worcester Solar Wind Works NABCEP Certified PV

Re: [RE-wrenches] 4 ways to keep a battery for a long time

building something like that? Larry Crutcher Starlight Solar Power Systems On Dec 16, 2015, at 6:44 PM, jay wrote: HI Luke, Without knowing what the charging parameters its really hard to know whats going on. And this false issue with life span is years really gets me. Batteries are measured

Re: [RE-wrenches] Outback customer service???

integration. I quite stocking and selling any Outback products due to poor customer service and receiving used products from them when I had brand new DOA products. So, yeah, quite odd. Larry Crutcher Starlight Solar Power Systems On Dec 15, 2015, at 6:20 PM, jay wrote: HI Larry, As far as

Re: [RE-wrenches] Outback customer service???

I received a replacement FET board from Outback that I ordered for an out of warranty inverter. They sent me a used/refurbished board dated 2003. I was expecting a new part. Is this normal for Outback? Thank you, Larry Crutcher Starlight Solar Power Systems

Re: [RE-wrenches] Outback customer service???

professionals that are on this list. One person suggested to choose the product we sell from a company that provides the best customer support. That was well said. Larry Starlight Solar Power Systems On Dec 9, 2015, at 12:55 PM, Michael Welch wrote: Hi Wrenches. Sandra Herrera contacted me and let

Re: [RE-wrenches] Outback customer service?

Hi Peter, I only had the option to leave a message and after about 1 hour on hold I did so. That was a week ago. I had not heard of calling at a specific hour. Is this something they suggest? Where did you hear of this 0700 calling time? Larry On Dec 8, 2015, at 3:00 PM, Peter Parrish wrote

Re: [RE-wrenches] Outback customer service???

for a few weeks. jay > On Dec 8, 2015, at 8:46 AM, Starlight Solar Power Systems > mailto:la...@starlightsolar.com>> wrote: > > Does anyone know how to reach Outback customer service? I have called, waited > and left messages and emailed them with no response.

[RE-wrenches] Outback customer service???

Does anyone know how to reach Outback customer service? I have called, waited and left messages and emailed them with no response. Thank you, Larry ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change lists

Re: [RE-wrenches] Frozen T-105s

with the likely damage from the big freeze event and I would condemn the bank. Larry Crutcher Starlight Solar Power Systems On Dec 3, 2015, at 7:00 AM, Feather River Solar Electric wrote: Hey Folks, I came across an off-gridder yesterday whom was getting zero support from the

Re: [RE-wrenches] Panasonic PV modules, missing you

Installer Office 530-582-4503 Cell 530-448-9692 Fax 530-582-4603 www.solarwindworks.com ch...@solarwindworks.com From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Starlight Solar Power Systems Sent: Friday, November 27, 2015 12:47 PM To: RE-wrenches Subject: [RE

[RE-wrenches] Panasonic PV modules, missing you

Has anyone been able to purchase Panasonic modules in the US in the last few years? If so, where? Thank you, Larry ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: ht

Re: [RE-wrenches] Sanyo NOW Panasonic warranty claim-Where to start?

I have been trying for a few years to buy Panasonic (Sanyo) modules again and don’t get reply from the many emails I have sent. I have an old number for Sanyo Warranty Support: 408-861-8404 Larry On Nov 27, 2015, at 12:08 PM, Bill Loesch wrote: Hi Folks, Anyone with experience in obtaining

Re: [RE-wrenches] Inverter back feed liability

OMG!…I thought I was the only one that had to deal with those experts. My favorite was a fellow leaned over the counter and announced to me that he was retired from NASA. Well, guess I better pad my estimate by 25%. Good one, Hilton. On Nov 23, 2015, at 4:59 PM, Hilton Dier wrote: The most f

Re: [RE-wrenches] Odd battery problem - very low SG in only one cell

once said "excrement occurs". Bill On 11/23/2015 6:42 AM, Starlight Solar Power Systems wrote: > Dan, > > Last week I had a 3+ year old Trojan L16H-AC with one dead middle cell, SG > shows water. The bank has 8 batteries and the customer is diligent about > maintenance a

Re: [RE-wrenches] Odd battery problem - very low SG in only one cell

Dan, Last week I had a 3+ year old Trojan L16H-AC with one dead middle cell, SG shows water. The bank has 8 batteries and the customer is diligent about maintenance and charging. I wish I knew why this happens but it seems over the last few years like there is a pattern with Trojan L16’s. L

Re: [RE-wrenches] Mixing battery sizes in the same bank

, preached and insisted “never mix battery sizes in the same bank”? Battery wrenches, has anyone ever done or seen this done? (Allan, I’m not even going to ask about your customer with five 6 volt batteries in a 24 volt bank) Larry Crutcher Starlight Solar Power Systems On Nov 20, 2015, at 4

[RE-wrenches] Mixing battery sizes in the same bank

Just when I thought I was becoming a battery guru, this came up: A customer asked me if he could purchase two different size 12 volt Lifeline (Concorde) AGM batteries and connect them in parallel. Of course I told him this was a bad idea and all his parallel batteries should be same make, age, s

Re: [RE-wrenches] Classic 150 100 amp output breaker tripping?????

After the Magnum Inverter/charger samples incoming AC power, they have a slight delay before starting the charger. Then, they ramp up current slowly. Even so, how will any current from any other source pass through the breaker unless the Classic is presenting a load? I suppose something else co

Re: [RE-wrenches] Classic 150 100 amp utput breaker tripping?????

trips the breaker? To be sure, put a new 100A breaker in and wait for sunup. Larry Crutcher Starlight Solar Power Systems On Oct 28, 2015, at 3:04 PM, Daniel Tittmann wrote: An update on this issue: On my initial visit to diagnose this problem I changed the AGS settings higher volt start

Re: [RE-wrenches] Adding battery backup to Enphase

Hi Dan, I looked at the Ironedison website and it looks like they are offering the Balqon ESS LFP series as their Lithium Iron battery (https://ironedison.com/48-volt-lithium-battery-for-solar). If this is true, buyer beware…there are technical and delivery issues related to these Lithium batt

Re: [RE-wrenches] Generator backfeeding enphase?

I have a customer with a China Diesel 40kW generator that will sync up with 3 Fronius inverters and 17kW of PV's. A few years ago he had to run for a week like this. Each day the inverters would sync up, no problems. Larry Crutcher On Oct 20, 2015, at 4:16 PM, Tump wrote: I guess that am mi

Re: [RE-wrenches] AGS sensitive battery charger

Exactly! And fully programmable voltage, charge timers, equalization, etc. I’ve been begging Magnum Energy to do this. About 4 years ago they started telling me they were working on it. I guess they don’t realize how many are needed. I sell lots of Iota because I can tweak the voltage but that’s

Re: [RE-wrenches] Hailstorm damage

Speaking of flat mounted modules, most of what we install are flat mounted on vehicles. The numbers since 2001 are well over 10,000 PV modules flat mounted. Not one customer has contacted me about a module damaged by hail. My personal RV was in a hail storm that did $22,000 damage to my home. T

Re: [RE-wrenches] Hailstorm damage

Speaking of flat mounted modules, most of what we install are flat mounted on vehicles. The numbers since 2001 are well over 10,000 PV modules flat mounted. Not one customer has contacted me about a module damaged by hail. My personal RV was in a hail storm that did $22,000 damage to my home. The s

Re: [RE-wrenches] Hailstorm damage

Hi Glenn, Most Warranty spell out their exemptions that include any damage for objects. I just glanced at the Sanyo warranty and found they even mention Golf Balls and hail stones! • Damage caused by abuse, neglect, vandalism, accident, animals or insects, or external stress, such as,

Re: [RE-wrenches] DC conduit with AC secondary?

I’m not sure of the code but if you do this, be sure to twist the DC wiring to reduce the possibility of common mode noise and inductive coupling from the parallel AC wire. Larry On Oct 5, 2015, at 8:45 AM, AE Solar wrote: Wrenchers, Anyone know of code violations associated with running DC

Re: [RE-wrenches] PV testing

Bill, In the shop I have two electronic loads that I use nearly every day with batteries and PV modules. One is a programmable 150W, 360V that can be set for constant power, current or voltage (like this: http://www.amazon.com/Programmable-Electronic-Load-360VDC-CSI3710A/dp/B00D7QGSV4). It’s s

Re: [RE-wrenches] PV Tracker - Best available?

5, at 12:04 PM, Starlight Solar Power Systems > wrote: > > Hello Eric, > > With the low cost of PV solar modules, I would like to know why anyone would > choose to track the sun? It cost's much more and is a maintenance issue > compared to adding more PV modules t

Re: [RE-wrenches] PV Tracker - Best available?

is no space available for more PV it makes sense if you must have more production. Larry Crutcher Starlight Solar Power Systems On Oct 3, 2015, at 9:49 AM, SunHarvest wrote: Given 310# snow load in the Sierras, what are some suggestions for a superior pole-mounted tracking system? Right no

Re: [RE-wrenches] Five L16s in a 24V string?

Took about a minute to draw with Pages on a Mac. On Oct 1, 2015, at 1:22 PM, Allan Sindelar wrote: ….Larry, nice drawing below. What did you use, as I need to learn it too? Allan Allan Sindelar al...@sindelarsolar.com NABCEP Ce

Re: [RE-wrenches] Five L16s in a 24V string?

Since multiple batteries failed ("the one that always fails"), did he buy one new battery each time and tie it to the old failing one? Or, did he start with a new bank and create the parallel at that time? Since he’s an “old timer” he may be mixing different age batteries in the bank. I see this

Re: [RE-wrenches] Five L16s in a 24V string?

be lasting longer since they have half the DoD each day. A very strange setup, I’ve never seen this. Since I rarely see a true battery failure (most are damaged by the owner) I can’t say that I’ve noticed any pattern. Larry Crutcher Starlight Solar Power Systems On Sep 30, 2015, at 8:43 PM, Alla

[RE-wrenches] Grid tie in Nicaragua

Has anyone done a grid tie system in Nicaragua? I would appreciate talking about equipment reliability and other difficulity due to utility power instability. Thank you, Larry Crutcher Starlight Solar Power Systems ___ List sponsored by Redwood

Re: [RE-wrenches] Rooftop DC disconnects

Hello Howie, I attached it to my email on 9-24-2015. In brief, a HV relay disconnects the PV array and optional relay disconnects the battery. Midnite plans to add the arc fault Aux feature. Here it is again: I asked Midnite about using the Aux circuit for control for ground or arc faults. Th

Re: [RE-wrenches] Rooftop DC disconnects

on a two story house with a 6:12 roof pitch. Something to consider. Regards, Gary Willett PE Icarus Engineering On 9/24/15 7:26 PM, Starlight Solar Power Systems wrote: > William, Ray, > > I asked Midnite about using the Aux circuit for control for ground or arc > faults. They

Re: [RE-wrenches] Rooftop DC disconnects

the Gigavac UL listed? R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 9/24/2015 10:45 AM, Starlight Solar Power Systems wrote: > William and Wrenches, > > I have pondered situations like this one and w

Re: [RE-wrenches] Rooftop DC disconnects

Ray, UL508 for sure but look here: http://gigavac.com/catalog/pp/hx.html Larry On Sep 24, 2015, at 11:03 AM, Ray Walters wrote: …. Is the Gigavac UL listed? R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 __

Re: [RE-wrenches] Rooftop DC disconnects

William and Wrenches, I have pondered situations like this one and wonder the following: If a high voltage DC solenoid were placed at the PV array and the coil was controlled by an arc fault detector along with a means of manually disconnecting, would that not work to satisfy shut down require

Re: [RE-wrenches] Morningstar PWM

the battery not getting charged. Larry Crutcher Starlight Solar Power Systems On Sep 9, 2015, at 5:06 PM, Drake wrote: Hello Wrenches, I have a Morningstar PWM 45 that doesn't drop out of absorb. It is set with dip switches to absorb at 29.2 V and stays constant around 29.1. It has stay

Re: [RE-wrenches] Fronius Warranty Problems

Peter, Fronius has some of the most ignorant people working for them. It took me over a year to receive payment for an inverter swap that they diagnosed as having failed. After I returned the old inverter they claimed nothing was wrong. Run from Fronius! Thank you, Larry On Sep 3, 2015, a

Re: [RE-wrenches] Control board Kohler 14 RES

Magnum Energy inverters have no capability to send current to the grid (generator) through their inputs. Sounds like BS to me. What is this mystery board that blocks AC current one way? Larry On Aug 25, 2015, at 11:18 PM, Mac Lewis wrote: Hello wrenches, I've got an issue I'd like to put ou

Re: [RE-wrenches] AC Coupled with Generator

Ray, I’m curious about what you mean by not doing a 3 stage charge. While PV charging in coupled mode (off grid), the battery will reach your absorption set point. Is this triggering the GT inverters to shut off or does the battery inverter absorb timer run at all? I would think the absorb time

Re: [RE-wrenches] Lithium Iron Phosphate

software that communicates with chargers and control CPU’s to make the adjustments on the fly. Larry Crutcher Starlight Solar Power Systems On Aug 18, 2015, at 8:31 AM, Peter Parrish wrote: I too am interested in LiFeP batteries. I think we need some more information on charge/discharge cycles

Re: [RE-wrenches] Lithium Iron Phosphate

challenge for equipment makers but can be resolved by designing CAN interface and software that communicates with chargers and control CPU’s to make the adjustments on the fly. Larry Crutcher Starlight Solar Power Systems On Aug 18, 2015, at 8:31 AM, Peter Parrish wrote: I too am interested in

Re: [RE-wrenches] Lithium Iron Phosphate

ed to fully charge. Hopefully some RE equipment manufacturers will see this coming potential and design suitable chargers. Larry Crutcher Starlight Solar Power Systems On Aug 17, 2015, at 3:29 PM, Daniel Young wrote: Hello Wrenches, I’ve been trying to think through how I can mate some

Re: [RE-wrenches] Using the North Facing Roof

the north side. I can not see any benefit in AZ even at todays low prices. Now, if I were building in Quetzaltenango, Guatemala, that would be a different story. But then again, I would have to clean off the volcanic ash each morning. Larry Crutcher Starlight Solar Power Systems chart came from

Re: [RE-wrenches] DC conductor line loss numbers

e run. Larry Crutcher Starlight Solar Power Systems On Jul 22, 2015, at 10:37 AM, Jerry Shafer wrote: Wrenches Some time back there was discussion on the conductor size and efficiency rating requirement for long DC runs. What I am looking at is this, 400 feet of MCM 400 to keep the line loss

Re: [RE-wrenches] Trina Module Annual Degradation

, Kyocera, 13 years after the 1 Year Limited Warranty expired, is STILL replacing the KC120 and 80 Watt modules with a rebuilt unit and they are STILL paying us labor to replace them. What a company! Larry Crutcher Starlight Solar Power Systems On Jul 18, 2015, at 11:09 AM, b...@midnitesolar.com

Re: [RE-wrenches] Aquion Energy

Hi Mark, There was some discussion back in November 2014 on this list. They claim 100% DoD but I can’t see how you can use the full capacity of the battery due to the broad operating voltage. Larry Crutcher Starlight Solar Power Systems On Jul 16, 2015, at 5:20 AM, Mark Frye wrote: Does

Re: [RE-wrenches] Generac QT series

photos so I believe your problem is not as simple as the sine waveform. From the cost standpoint, I’de guess you have to try a different brand inverter first. However, since the problem only occurs with that particular generator, I would not trust it. Larry Crutcher Starlight Solar Power Systems

Re: [RE-wrenches] [SPAM] Re: Mate Drop and Charge Functions

their new 100 amp charge controller, ME will have a complete solution through one remote. Larry Crutcher Starlight Solar Power Systems On Jul 12, 2015, at 4:37 PM, jay wrote: All the different remote controls have their pros/cons. However I find the web based videos from outback to be the most

Re: [RE-wrenches] SnapNrack - Anti-seize

You can use a thin sponge soaked anti-seize and just touch the threads to the sponge. Since it only takes a minute amount of lube to prevent galling, you can prep all your bolts in the shop and bag them. Zip lock the sponge for the next job. Larry Crutcher Starlight Solar Power Systems On

[RE-wrenches] Finally, a simple battery backup switch/controller

Starlight Solar Power Systems ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive:

Re: [RE-wrenches] Voltage Degradation with Uni-Solar laminate

Sorry...I meant to type 17.75V (71V). On Jun 1, 2015, at 11:21 AM, Starlight Solar Power Systems wrote: Luke, For reference, we sold/installed many hundreds of Uni-Solar products since 2002. I have never seen anywhere near that much Voc loss. Since the PVL-68 has an open circuit of 23.1V

Re: [RE-wrenches] Voltage Degradation with Uni-Solar laminate

Luke, For reference, we sold/installed many hundreds of Uni-Solar products since 2002. I have never seen anywhere near that much Voc loss. Since the PVL-68 has an open circuit of 23.1V (92.4V) but you only see 14.2V (71V), a loss of 25%, I do not believe degradation is the culprit even at 15

Re: [RE-wrenches] Passive Battery Venting

I too saw that these were AGMS. The only time excess H venting happens is with severe over voltage for a period of time. How often will this happen? Have any battery wrenches experienced high volume venting of AGM’s? Our experience: There is no NEC requirements for mobile installations. We have

Re: [RE-wrenches] warranty exclusions

Rebecca, This reminds me of a Sanyo grid tie system we quoted years ago to be installed in Yuma, AZ. After receiving the PV modules (11kW), I discovered that the warranty was void if the average temperature was above 104° F (40C). That means “no warranty” in Yuma and much of the desert SW. For

Re: [RE-wrenches] magnum question

Jay, Perhaps asking the question here. I have hundreds of Magnum inverter installations, perhaps I or others can help. Larry On Oct 23, 2014, at 5:44 PM, jay peltz wrote: HI All, Does anyone have a person at Magnum in engineering or higher up than tech support. I've got a problem with an i

Re: [RE-wrenches] SMA DC Disconnect Switch failure

marco, SMA has agreed to replace it. Have you had any trouble with the replacement disco(s)? On Oct 16, 2014, at 2:24 PM, Marco Mangelsdorf wrote: Yes, I’ve had a number fail over the years, especially the no-longer-made DC/AC combo switches. I’d get a warranty replacement from SMA…if it’s

Re: [RE-wrenches] Quantifying power quality

Hi William, If you recall a couple years ago we had some discussion here about a problem with a specific make appliance being powered by a Magnum inverter. The problem, it was discovered, was the appliance input PF was creating current demands that the transformer based inverter could not keep

Re: [RE-wrenches] SWRC for older Power Series inverter

After re-reading it looks like you’re not wanting the RC remotes but rather the remote option for the PS series. So, as Roseanne Roseannadanna would say…..never mind. On Oct 6, 2014, at 5:20 PM, Starlight Solar Power Systems wrote: Hi Chris, We still have stock on the RC6, RC7 and RC7GS

Re: [RE-wrenches] SWRC for older Power Series inverter

Hi Chris, We still have stock on the RC6, RC7 and RC7GS that came before the RC/GS. These all work with the old RV and Legend series inverters. I will be back in Az in about 1 week if you still need one. Larry On Oct 6, 2014, at 9:37 AM, Chris Daum wrote: Dear people: Does anyone have the

Re: [RE-wrenches] LiFePo4

gh to be called "off". Couldn't be easier. Now we're just talking price compared to a tried and true LA battery ? Some may remember Boeing's little problem recently though and that may turn them off. boB On 9/18/2014 11:33 AM, Starlight Solar Power Systems wrote: >

Re: [RE-wrenches] LiFePo4

27;s all a compromise. boB On 9/18/2014 10:55 AM, Starlight Solar Power Systems wrote: > boB, > > When charging a LFP battery, the charge terminates when absorb voltage is > reached unless you have an enormous charger in which case you will need to > terminate based on AH returne

Re: [RE-wrenches] LiFePo4

smaller lead acid battery in parallel with the LiFePo bank so the LiFePo contains most of the "energy" storage, but the LA can supply the surges and low impedance source voltage. boB On 9/18/2014 8:53 AM, Starlight Solar Power Systems wrote: > William, > > This is one reaso

Re: [RE-wrenches] LiFePo4

William, This is one reason I choose to avoid the "black box" approach to Li-ion batteries for our customers. There are several companies offering enclosed battery/controls like the OES. Their approach does not match well to the off-grid and mobile markets that I serve. Since most LFP batteri

Re: [RE-wrenches] LiFePo4

William, What did you find at the site? I did not see any attachment or link in your email so let me know what you are working on. Do you have any questions about the batteries/system? Larry On Sep 16, 2014, at 12:31 AM, William Miller wrote: Friends: Here are the specific batteries I

Re: [RE-wrenches] LiFePo4

Jarmo, I must say I disagree with most of what you have said. In the EV DIY industry, there are a growing number of conversions using LFP battery banks without any BMS or EMS at all. These pioneers are risking there multi-thousand banks because they have learned something about these cells. The

Re: [RE-wrenches] LiFePo4

ERROR….I meant to say ….reach 3.55 volts per cell. On Sep 16, 2014, at 9:43 AM, Larry Crutcher, Starlight Solar Power Systems wrote: Mac, Li-ion batteries are connected the same as any other deep cycle, positive and negative terminals. The Battery management is done actively on each cell

Re: [RE-wrenches] LiFePo4

Mac, Li-ion batteries are connected the same as any other deep cycle, positive and negative terminals. The Battery management is done actively on each cell. The brand that we sell has a CPU that receives serial data from the string of “sense” boards that are monitoring temperature and voltage p

Re: [RE-wrenches] LiFePo4

Hi William, I have designed and installed a few lithium iron battery banks. We now stock the GBS line and plan to add additional brands soon. My experience is very positive toward the performance and future of LFP and LFMP as a replacement to lead acid for off grid, stand-by and mobile use. As

Re: [RE-wrenches] Grid-tie inverter for wind generator

Chris, I would not touch that with a..….20 foot pole. It will never work right and he will assign you the blame when he sees his electric bill go down by $1 per month. Larry On Sep 5, 2014, at 9:42 AM, Chris Daum wrote: One killowatt, and three wire. He's been using it with some heating ele

Re: [RE-wrenches] Sunpower off grid?

Crutcher Starlight Solar Power Systems On Aug 20, 2014, at 10:46 PM, Ray Walters wrote: Greetings fellow Wrenches; I have a customer that just purchased some Sunpower E20 -435 modules somehow from Ebay, and wants me to design a backup power system for him. This system would be battery based

Re: [RE-wrenches] More Sunny Island power problems

William, One other option, if the AV crew can see the light, is replace the UPS with an inverter like Magnum MS1012 and a separate battery equal to the UPS capacity. The Magnum has broad input voltage and should the SB fail to provide power, the transfer time is likely fast enough (16ms) to repl

Re: [RE-wrenches] WorkTruck Inverter Suggestions

Hi Bill, I’m probably stating the obvious but we always install mobile inverters closest to the battery due to the high loss at 12 volts, then run AC to the point of use. Larry On Aug 7, 2014, at 7:07 AM, Bill Loesch wrote: Gentlemen: Does anyone have any suggestions/preferences on mounti

Re: [RE-wrenches] Lithium Ion Battery....was 2v metal cased cells

$360/kWh is a good price. Can you share the brand with us or email me off list? We sell Li-ion (LFMP) at our store but I include a CPU, protection solenoids, battery capacity meter and video display. My dealer cost is quite a bit higher than you were quoted. Larry On Jul 12, 2014, at 11:42 AM

Re: [RE-wrenches] Magnum and Pumps

Yes Drake, I stand corrected, I was picturing the micro inverters feeding the input rather than coupling the output of the Magnum. To your original question, I think you would have to be consuming more power than the PV array alone can provide before the Magnum voltage would drop with the pump l

Re: [RE-wrenches] Magnum and Pumps

Hi Drake, If the Enphase are online, up to 60 amps (30A @ 240V) can be transferred through the Magnum inverter to loads. The inverter is not providing power to loads at that time. If the Enphase go offline, the Magnum takes over using power from the battery. If the load is greater than your Enp

Re: [RE-wrenches] FullRiver Battery

our best selling battery. Larry Crutcher Starlight Solar Power Systems On Jul 2, 2014, at 3:58 PM, RE Ellison wrote: What has been everybody’s experience with Full River Batteries? Bob ___ List sponsored by Redwood Alliance List Address: RE

Re: [RE-wrenches] Magnum and Pumps

Hi Roy, The FullRiver DC400-6 AGM battery can issue 2000 amps for 5 seconds so he should be fine. Larry On Jul 2, 2014, at 12:35 PM, Roy Butler wrote: I haven't seen anyone mention the battery bank. If I understand correctly, there's a single string of sealed L16 batteries on this inverter.

<    1   2   3   4   5   >