Re: [RE-wrenches] Smart grid grid-connected compatibility

2012-07-09 Thread Kent Osterberg
Doug, Enphase has suggested that solution and its a good one if the utility is cooperative. Of course, they are under no obligation to be cooperative, or to remain so. And unfortunately it looks like all the neighbors' meters being served by a common transformer, and maybe even more beyond, a

Re: [RE-wrenches] Battery Experience

2012-07-09 Thread John DeBoever
Todd, They both belong to the same Premium battery category. They differentiate by Ah size, although very close to each other: ü L16RE-A is 323 Ah @ C20 @ 1.75VPC @ 80oF; ü L16RE-B is 370 Ah @ C20 @ 1.75VPC @ 80oF; See more info on the datasheet, here: http://www.trojanbatteryre.com/PDF/dat

Re: [RE-wrenches] Battery Experience

2012-07-09 Thread John DeBoever
Dick, Yes, correct, partial state of charge. John On Jul 9, 2012, at 18:45, "Richard L Ratico" wrote: > John, > > Thanks for that clarification. One question: What is PSOC? Partial State Of > Charge? > > Dick Ratico > Solarwind Electric > > > --- You wrote: > Jason, Wrenches, > > Thank

Re: [RE-wrenches] Smart grid grid-connected compatibility

2012-07-09 Thread Chris Mason
That's a brilliant solution, if the utility is cooperative. On Mon, Jul 9, 2012 at 6:52 PM, Doug Wells wrote: > Kent, > > I went through a similar situation with an Enphase system. With a little > discussion we decided that the easiest change is on the Utility side. We > encouraged the utility

Re: [RE-wrenches] Battery Experience

2012-07-09 Thread toddcory
and the difference betaeen the L16RE-A & L16RE-B is? todd On Monday, July 9, 2012 12:53pm, "John DeBoever" said: Jason, Wrenches, Thank you for your patience and positive statements on Trojan Battery Company. Last week was a busy and I was away from my desk most of the time with l

[RE-wrenches] Smart grid grid-connected compatibility

2012-07-09 Thread Doug Wells
Kent, I went through a similar situation with an Enphase system. With a little discussion we decided that the easiest change is on the Utility side. We encouraged the utility to put all solar systems with Smart metering on a different schedule. Now the solar residence is only pinged at night

Re: [RE-wrenches] Battery Experience

2012-07-09 Thread Richard L Ratico
John, Thanks for that clarification. One question: What is PSOC? Partial State Of Charge? Dick Ratico Solarwind Electric --- You wrote: Jason, Wrenches, Thank you for your patience and positive statements on Trojan Battery Company. Last week was a busy and I was away from my desk most of the t

Re: [RE-wrenches] Needed: Outback setpoints that won't ruin AGM's

2012-07-09 Thread Allan Sindelar
Marc Kurth of Centex Battery, a Concorde distributor, responding to Larry's email about Concorde charging: Allan: From my perspective: -  Yes, of course chronic undercharging is indeed the single bi

Re: [RE-wrenches] Battery Experience

2012-07-09 Thread John DeBoever
Jason, Wrenches, Thank you for your patience and positive statements on Trojan Battery Company. Last week was a busy and I was away from my desk most of the time with limited access to Internet. Both the Premium "RE" versions L16RE-A and L16RE-B, and, the Signature L16P & L16H are great deep-

Re: [RE-wrenches] Smart grid grid-connected compatibility

2012-07-09 Thread Chris Mason
Kent, Typically the manufacturer is not to anxious to change the parameters outside those set out in the UL 1742 standard. However, for this, I suspect that is what is needed. They will probably need you to sign a waiver first, which is what we had to do with SMA. Do you have a scope to look at th

Re: [RE-wrenches] Smart grid grid-connected compatibility

2012-07-09 Thread Kent Osterberg
Chris, Enphase has the ability to remotely adjust the voltage and frequency operating windows. They have adjusted them as far as they can, or will. I have some SMA Sunny Boy inverters in locations that recently have TWACS remote reading systems installed. Most don't have remote data monitori

[RE-wrenches] Solar Hot Water - Anti-Scald Valve Failing Hot

2012-07-09 Thread matt
Wrenches, I am curious if any of you solar thermal installers have had an anti-scald valve failure that left the end user with 100% untempered, hot water? We recently had a residential homeowner who purchased a Heliodyne system with Watts valve five or six years ago see a tempering valve fail in

Re: [RE-wrenches] Needed: Outback setpoints that won't ruin AGM's

2012-07-09 Thread Larry Crutcher, Starlight Solar Power Systems
For more clarity, it does not matter the size or voltage of the battery. You still need to achieve 0.5% or less of the rated capacity to consider the battery 100% charged. Larry On Jul 9, 2012, at 7:07 AM, Allan Sindelar wrote: Larry, While I agree with your assessment of Mick's settings, som

[RE-wrenches] Needed: Outback setpoints that won't ruin AGM's

2012-07-09 Thread Larry Crutcher, Starlight Solar Power Systems
(I am posting this private response on the board because I believe it may benefit others) Marc suggested that you only charge the battery until the current is lowered to 2.5% to 3% of the rated capacity. Doing so will undercharge the battery, leaving a deficit needed to reach 100% SoC. This le

Re: [RE-wrenches] Needed: Outback setpoints that won't ruin AGM's

2012-07-09 Thread Larry Crutcher, Starlight Solar Power Systems
The End Absorb Amps setting forces the MX controller into the float mode once the Absorb Voltage is reached and sustained for 15 seconds. Here is the text from Pg. 42 of the MX60 manual (emphasis added): (End, -AMP, +AMP) Normally, an Absorb charge cycle is terminated because the battery volta

Re: [RE-wrenches] Needed: Outback setpoints that won't ruin AGM's

2012-07-09 Thread Allan Sindelar
Larry, While I agree with your assessment of Mick's settings, some of what you write doesn't make sense to me, and I'd like to better understand. Re: "End Absorb Amps will only look at the controller current, not net battery current. If loads are on,

Re: [RE-wrenches] Smart grid grid-connected compatibility

2012-07-09 Thread Chris Mason
Yes, I expect they can. The greater issue is going to be whether the other inverters are going to react also. Have you had any experience with other inverters in this scenario? I don't undertand why the meter manufacturer can't ensure the burst is filtered out of the load connections. They have to