So you can get others to install your designs? I would never touch materials I
do not sell, or install a system I did not design... and I am amazed anyone
would.
Todd
On Monday, December 21, 2009 12:56pm, Brian White bri...@eagleroofing.com
said:
Thanks to all who have posted.
To
There is a bug in the last batch of these meters before they were discontinued
by Xantrex. I have heard about this from many others, but Xantrex claimed to
know nothing about it... and since the meter is no longer available, you either
replace it with an overly complicated (for most customers)
Here is a repost of this information from 20067
Todd
Ok, I called Jake and he forwardedme to Brent Carper (253-395-6818) who works
in the Puget Sound Energymetering department. I had a long conversation with
him about how tometer battery based, grid tied inverters.
The form 12s meter
Hey folks,
I'm looking for a Mitsubishi 185 (black frame if possible) to replace a broken
one on a customers rack.
Thanks,
Todd
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What is a golf cart battery?
Todd
On Monday, February 22, 2010 12:53pm, R Ray Walters r...@solarray.com said:
These are grid tie with battery backup systems. All inspected.
Personally, I think that we should have OCP on each series string, but that's a
whole nother can o' worms.
Most sealed
My home system's GVFX3648 maxes out at around 2.8 to 2.9 kW @ 80 degrees F. If
I push it harder, it overheats. While they are rated at 3600 watts, they
cannot do this continuously with ambient temps above ~40 F.
Todd
On Wednesday, February 24, 2010 2:25pm, Michael Welch
I think Backwoods Solar used to carry these.
Todd
On Thursday, February 25, 2010 10:12am, jason pozner zzyyzz...@gmail.com
said:
Hi wrenches,
Does anyone know a good source for a reliable, reasonably priced 24v DC clock
timer 5-10A run off a relay. We are powering heat tape to mitigate a
USE2
Todd
On Thursday, February 25, 2010 10:54am, Mick Abraham m...@abrahamsolar.com
said:
...and...the next time I buy #10 sunlight resistant wire for making up my own
plug extensions...should I buy a more exotic wire type and how do I know what
will work?
Thanks,
Mick Abraham,
elling wattage) runs ~87%.Hope this is helpful.ToddOn Friday, February 26, 2010 9:59am, "Michael Welch" michael.we...@re-wrenches.org said: From: j...@greenhousepc.com toddcory at finestplanet.com writes: How high have the temp counts on your transformer gotten? I'd pay closer attention to the FE
PS I was told the GVFX will NOT back off the power in an overtemp situation.
The inverter will just shut down if it gets too hot.
Todd
On Friday, February 26, 2010 9:59am, Michael Welch
michael.we...@re-wrenches.org said:
From: j...@greenhousepc.com
If the temperatures get
out of hand,
Thankfully my MX60's software is old enough to still have an option to control
it's aux output by current. Anything over 50 amps turns on auxiliary fans. Not
sure why Outback eliminated this useful option in more recent upgrades.
Todd
On Sunday, February 28, 2010 10:00am, Michael Welch
So do the charge controller and amp hour meter communicate so they agree on
when the batteries are fully charged?
Todd
On Wednesday, March 17, 2010 12:02pm, R Ray Walters r...@solarray.com said:
We have a couple out in the field. A bit of hassle to upgrade the firmware at
first, but Apollo
Has anyone included the extra racking costs to add additional modules used to
compensate for wire loss?
Todd
On Friday, April 9, 2010 10:46am, R Ray Walters r...@solarray.com said:
All our economic analysis is based on a 20 to 25 year life.
Safety first, but then good design is to spend
A dual system will need two meters... one to keep track of each leg. Outback
has details on their web page about how to configure these, or if you like
contact me off list for repostings of messages from the last few times this
went around.
Todd
On Wednesday, April 21, 2010 10:08am, Dana
Ahh, the old DT kludge. I have done this here at my home because the GFX only
has one AC input... grr... so this is a good workaround. As long as you take
the 120 or 240 down to ~ 60 volts, you will be fine. My 3 kW xmfr (got used
online - very heavy and expensive) has a 240 volt input/outputs
I am looking for any old stock or leads for the now discontinued
E-meter/Link-10 prescaler. 0-100 volts.
Thanks,
Todd
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Don't you think the transformer is good for isolation?
Todd
On Tuesday, April 27, 2010 4:26pm, ryan r...@solar4maine.com said:
I have done this a couple times. I have done this with a MX60 and a
MidNite Classic the beauty with the Classic is you can eliminate the
Transformer. I Simply
UNLESS you are moving that power any distance. I have a 20+ year old rack of
12, Solarex MSX-60's traveling 200' to the FM60. Wired in two strings of 6,
allowed me to drop the wire size considerably!
Todd
On Thursday, April 29, 2010 1:44pm, R Ray Walters r...@solarray.com said:
HI Allan
I
I have a question about my personal home system. It is an Outback battery based
grid tie. My digital utility meter is capable of reading var and power factor.
So often (like just now) when I read this it is not even close to unity.
Today's reading was 1.57 VAR, 56 PF. What is going on here? Am
I agree with that for floating flooded, wet cell lead antimony batteries... but
flooded lead calcium cells are a more appropriate choice for floating banks on
grid ties with backup. No cycling is necessary.
Todd
On Thursday, June 10, 2010 12:32pm, Bell, Steve sb...@sunwize.com said:I
also
proper absorb times (do the math)
Can you talk more about this please.
Todd
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Hopefully, they are equally concerned about the energy efficiency of their
home... but I be they aren't.
Todd
On Sunday, July 18, 2010 10:08am, Peter Parrish
peter.parr...@calsolareng.com said:
Hi Keith,
A few que[#] stions:
(Q1) How much is your client willing topay for the most
I sell 2.8 kW with 4.5 kW STC going into a GVFX, which is 62% DC - AC
efficiency. I can't imagine the XW being worse. Lead calcium wet cells take
very little float current and rarely need watering.
Todd
On Tuesday, August 24, 2010 2:42pm, Jeff Oldham starpowe...@juno.com said:
I remain shy
repairable unit - you don't have to trash it every seven years (reported
national average)
My tank is 20 years old now. I change the anode every 3 years.
Todd
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I recently read on the DSIRE web page that the 30% credit need not be the
primary residence.
Todd
http://www.dsireusa.org/incentives/incentive.cfm?Incentive_Code=US37Fre=1ee=1
Federal
Incentives/Policies for Renewables
Thanks everyone for the feedback on my question!
Todd
On Friday, October 1, 2010 9:32am, Larry Crutcher la...@starlightsolar.com
said:
Todd,
The shunt is only providing a mV DC signal. In our showroom we have a
working display wall of charge controllers and battery monitors (Blue
Sky,
I know many on this list disagree, but this sounds SO typical for sealed
batteries. It is why I never use em... never! If they are 5 years old, you are
probably at the limit of their life. Replace em with flooded lead calciums and
your customers (and you) will be happy for 20+ years.
my .o2
The battery choice was the decision of the system owner.
Since when does the customer make these decisions?
Todd
On Monday, October 4, 2010 6:36am, North Texas Renewable Energy Inc
nt...@1scom.net said:
Todd
I've heard the same arguement, as well as its inverse. The battery choice was
Perhaps James @ Surrette can chime in about the cost difference. I do not think
flooded lead calciums are much more expensive then flooded lead antimony
batteries.
Todd
On Monday, October 4, 2010 8:00am, jay peltz j...@asis.com said:
HI Todd,
I agree that the issue is probably dead
Lead cadmium or lead calcium? Again, I do not have the cycle chart handy, but
hopefully James can post that.
Todd
On Monday, October 4, 2010 8:11am, Mark Frye ma...@berkeleysolar.com said:
Todd,
Can you give us a comparison of lead vs lead cadmium?
My understanding is that lead cadmium
When I do a system, the customer is hiring me as the expert. If they want me to
do something that won't work well, my reputation is on the line, and so they
need to hire someone else.
Todd
On Monday, October 4, 2010 2:46pm, hol...@sbcglobal.net said:
Since when does the customer make these
I have the same question, only regarding pole mounts.
Todd
On Wednesday, October 20, 2010 8:06am, benn kilburn b...@daystarsolar.ca
said:
Mornin,
I'm looking at mounting an Enphase M190 system on a standing seam metal roof
and was considering using the S-5-PV clamps (as opposed to just the
I have a client right now doing a last ditch heavy equalizing cycle to try to
save his 5 year old, 24 volt bank of 8 L-16's. One of the two series strings
has a weak cell... so the other string is boiling away. He is charging for 2
hours with 2 hours rest to not overheat the charged cells. Too
Did he ask to see the UL sticker on the batteries too?
On Monday, November 29, 2010 5:07pm, Philip Boutelle philboute...@gmail.com
said:
Wrenches,
We have a string of batteries being inspected by a local AHJ. In plan-check
comments, I was asked to ensure that the flexible cable was
I don't have a manual, but I do have one of these on the PV direct pump that
operates my SHW system. I can identify the wires if you like.
Todd
On Sunday, January 2, 2011 5:45pm, Exeltech exelt...@yahoo.com said:
Hello Wrenches,
I need copies of instruction/user's manuals for a Bobier Sun
Sunwise is having one this Thursday on code approved roof mounts.
Todd
On Tuesday, January 4, 2011 11:54am, gary easton g...@arp-solar.com said:
Hello Wrenches,
Anyone aware of webinars coming up approved for NABCEP's code related
continuing education credits?
Sent from Finest Planet
The old armory building in Ashland, Oregon has a roof like this with PV on it.
Do some research and see if you can determine what was done there. From my
observation it looked like a classic rail mount system was used.
Hope this helps,
Todd
On Saturday, January 22, 2011 8:40am, Aaron
I had a potential customer call me last week saying he had just bought a bunch
of panels and those micro chip things (enphase inverters) so he could get a end
of the year tax break. He wanted me to come and install it for him. I told him
my work includes a comprehensive energy audit to gather
I see the FM60 had a 60 volt option. Why not just use a single one at that
battery setting for charging the battery bank?
Todd
On Thursday, February 10, 2011 9:44am, Darryl Thayer daryl_so...@yahoo.com
said:
Hi all
I have attached a PDF of a charging scheme using Outback FM controllers.
I wasn't going to say anything, but electric clocks off-grid? really???
Todd
On Monday, April 4, 2011 6:20pm, Kent Osterberg k...@coveoregon.com said:
Kris,
Even with generators using an electronic governor, the frequency changes
with load. Also while inverters are stable their frequency
Hi Doug,
I had a customer's roof mount system break modules this spring after yet
another record Mount Shasta snow event. This one brought 8' in 10 days.
The situation here was 15 Evergreen 190 watt modules (rated for 80#/sq ft), on
a DPW power rail mount, on a 6/12 pitch, comp roof. Ice
How about looking into a more efficient pump first?
Todd
On Saturday, April 16, 2011 8:00pm, Darryl Thayer daryl_so...@yahoo.com
said:
That is 480 x 1.73 x40 A x.8 or 26 kW in the peak of the day, five or 6 big
trackers, or about 50 kW of fixed array. ( I assure they want 40 amp
What about the new Surrette FC420's? The latest SOLARPRO mag has a tiny blurb
on them at the bottom of page 28. Two sets in parallel (630 a/h) would meat
your criteria and would perform much better than sealed batteries.
I have been beta testing a set here at home and they seem to be doing
I just purchased a MSI U100 netbook and love it. Fast cheap ($350.00).
Todd
On Friday, April 10, 2009 8:26am, Joel Davidson joel.david...@sbcglobal.net
said:
Wrenches,
Some Wrenches include their notebook computer among their most valued tools.
My 2001 IBM T23 notebook has served me well
Does anyone have any link-10/e-meter 0-100 volt prescalers in stock still? If
so please contact me off list.
Thanks,
Todd
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Down about 70%.
Todd
On Saturday, May 30, 2009 11:06am, Marco Mangelsdorf ma...@pvthawaii.com
said:
Compared to the first five months of last year, how would any of you who
care to respond compare your year-to-date sales in 2009?
Thanks,
marco
Marco Mangelsdorf, President
69 Railroad
Its ok Nick... I feel the same way. My problems go back to when they bought out
Solarex and never issued a recall for all those defective MSX 60's out there.
Todd
On Monday, June 15, 2009 10:10am, Nick Lucchese ni...@sierrasolar.com said:
Oops, this was supposed just go to Andrew.
Nick
My dream! I hope someone knows of such a unit, cuz I'd love to know what to
recommend to folks.
Todd
On Monday, July 6, 2009 9:16am, Drake Chamberlin
drake.chamber...@redwoodalliance.org said:
Thanks to all who have helped with this. The moving target ofgenerator
function makes things a bit
The problem here it about 5 years ago they upped the snow loadrequirements from
40 to 60 p/sf so ANY thing added to the roof needs astructural upgrade.
Todd
On Tuesday, July 7, 2009 9:59pm, Bill Brooks billbroo...@yahoo.com said:
Allan,
Check out my website at
Then there are the wholesale internet designers that sell DIY systems. These
are usually put together by kids who have never done an installation, and who
have completed some training course and design from behind a computer screen.
I just hate to see this going on, but for many, this work is
Re: [RE-wrenches] Fwd: Grounding on aglacier
My understanding is that it saves cost to ground one of theconductors. Then
you can use single pole switches, fuses andbreakers. If both of the circuit
conductors are 'hot' then youwill need to use double pole everywhere.
Why? A single pole switch
If neither pole is grounded then both must be treated aspotentially hot.
Only with regard to the other hot wire. If you do not reference one conductor
to ground than the other one will not present any danger unless you are
referenced to its mate... as in touching both wires at once.
Its apples and oranges comparing coal power prices to renewables. Should a
Lexus cost the same as a Kia?
Todd
On Monday, July 27, 2009 9:05am, Joel Davidson joel.david...@sbcglobal.net
said:
All this figuring makes my head ache...
I agree with Bob. If someone is willing to pay me to
Power factor on DC? As far as I know, power factor / vars is an AC phenomena
where current and voltage are out of phase.
Todd
On Wednesday, July 29, 2009 5:45pm, Ron Young solarea...@solareagle.com
said:
Can anyone point me in the direction to find the power factor for Sanyo HIT N
205
My line voltage often runs in the 250 VAC range. My grid tied Outback system
used to go off-line when it got much higher than this, so I changed the
settings to user and opened the window way up. Problem fixed.
Todd
On Sunday, August 16, 2009 10:06am, William Korthof wkort...@eesolar.com
Those massive pictures could have easily been resized and compressed to less
then 100 K each.
Todd;
On Sunday, August 16, 2009 1:52pm, Bruce Geddes b.ged...@clear.net.nz said:
For goodness sake, posting attachements of 2M or so. There was a discussion on
this forum some months ago about
On Monday, August 31, 2009 8:57pm, Bill Brooks billbroo...@yahoo.com said:
Roger,
Why would a legitimate contractor argue against this reducedincentive (it is
not a penalty at all)? This is simply acknowledging the factthat operating a
business and providing a long-term system warranty
We have a local company who sells designed, packaged systems wholesale to the
public. IMO, their designs are poor and the quality of the customer installs
are equally suspicious. I support incentive and tax credits penalizing this
kind of behavior with lower financial support.
Todd
On
After swearing off brand X I did a XW system this last spring. The customer
needed two AC inputs and unfortunately the GVFX topology still only has one. On
the single occasion I called Xantrex to ask how to raise the sell (grid
support) voltage the tech support person told me to do what I
I am curious how you connect a generator to the GVFX? It only has one AC input
that us used for the grid.
Todd
On Monday, September 28, 2009 11:43am, Orion Thornton
othorn...@solarips.com said:
Wrenches,
We recently installed a grid-tie battery backup system usingtwo Outback GVFX
3648
Thanks for saying that Ray. I also have been a huge Outback fan but have
similar frustrations with why some problems have not been addressed, after all
these years. The single AC input on the GVFX comes to mind.
Todd
On Wednesday, October 21, 2009 1:09pm, R Ray Walters r...@solarray.com
So in essence, you had the PV's connected directly to the inverter's DC battery
connection point. What did the MPPT charge controller do without the battery as
a buffer? Did the efficiency go up on the system without batteries to keep
charged?
Todd
On Wednesday, October 21, 2009 10:12am,
My first modules had that kind of JB cover. Hoxan was the manufacturer. Do I
win?
Todd
On Thursday, October 22, 2009 2:59pm, Mick Abraham m...@abrahamsolar.com
said:
Set the dials on the Wayback Machine, Wrenches!
The modules which I wish to identify had bright blue polycrystal square cells,
Hey Drake,
Did you look in the mate warning/error menus to check voltage/frequency?
Todd
On Thursday, October 29, 2009 4:25pm, drake.chamber...@redwoodalliance.org said:
Hello Wrenches,
I was under the impression that he Honda EU series of inverter generators
could synchronize with the
There is also the option of converting the genny's AC output to DC and running
it through an MX60 as a rather rube goldberg way to interface a genny with a
GFX inverter. I did this at home and it works great.
Todd
On Saturday, October 31, 2009 8:06am, Tump t...@hughes.net said:
Drake I
Here is an old 2001 posting from Bill Brooks...
William, Marco, and Jeff C.,
Here is the method I found to be most effective:
INVERTER SETUP (MENU 9)
set to SELL
BATTERY CHARGING (MENU 10)
set ABSORPTION TIME to 0:00 on both machines.
set MAX CHARGE AMPS to 1 amp on both machines.
BATTERY
As someone who has been doing off grid systems since 1985 I can say from
experience, ALL sealed batteries are CRAP... especially in off grid
applications. They are too fragile and do not last.
Todd
On Sunday, November 29, 2009 5:48pm, Conrad Geyser conr...@cape.com said:
In the vein of us
I am sure the reason for using gloves with grease is lithium based grease
stinks like 90 weight. Who wants that on their hands?
Todd
On Thursday, December 3, 2009 1:21am, R Ray Walters r...@solarray.com said:
I was just picking up on where everybody is located. The cold weather boys
like
On grid or off grid Joel? If grid tied /w battery backup, use lead calcium wet
cells. They only need watering about every 18 months.
Todd
On Wednesday, December 9, 2009 6:14pm, Joel Davidson
joel.david...@sbcglobal.net said:
Wrenches,
We installed 48 each IBE 1-85N-15 cells (24 in series
I do not have these an any customer's systems yet. The data comes from my
Surrette evaluation/beta test bank. All my future battery based/grid ties will
get these though.
Todd
On Thursday, December 10, 2009 10:19am, jay peltz j...@asis.com said:
HI Todd,
Given the super long time between
Well said Jeff... like with auto genny starting systems... if the customer is
not willing to be involved with flying their system, only insisting on some
auto-pilot system... a crash is inevitable. Watering the batteries is an
opportunity for the customer to be more involved with their system.
Not to take this thread too far into the land of metaphors, but I'm sure
everyone knows that by the time a vehicle's oil pressure light comes on, severe
engine damage has already been done.
My point is, most of our current earthly problems are because people do not
want to be bothered with
Ahem, yes... right here in Mount Shasta. Thanks guys.
Todd
On Saturday, May 7, 2011 12:34pm, R Ray Walters r...@solarray.com said:
Even a bad solar installer isn't going to use cut up extension cords; that
install was DIY or a knowledgable inebriated neighbor. I lived in the
backwoods
Wrenches,
Fact or fiction: Adding concrete to the inside of a pole mount pipe makes it
stronger.
Thanks,
Todd
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Have you installed these Alex? I have specified them for a upcoming, local,
grid-tied system here in heavy snow country because there is no frame to peel
off from ice dams. The mounting system looks highly complicated/confusing. Can
you (or any other list members who have worked with these)
So I have to get factory training to install these??? It will be on a ~4/12
comp roof.
Todd
On Wednesday, July 27, 2011 10:34pm, Alex Cozine acdc.coz...@gmail.com said:
Yes I have installed these modules. Yes they do have a proprietary racking
system. To buy these modules I
If the DC AC float from the ground, your clients will effectively be
insulated from any current path unless they were to somehow touch both
conductors simultaneously. Many countries do not reference one of their current
carrying conductors to ground. Many people feel this is safer. You would
I successfully litigated (with help from the PUC) our local utility company
(PPL) for requiring a $500.00 fee (which violated the CA net metering law) to
replace the bi-directional analog meter with a dual register digital one. I had
a certification from the analog meter manufacturer stating
Yes... and we finally get the second AC input we have wanted for so long... the
price? $13,000.00... wow
Todd
On Friday, August 19, 2011 2:35pm, Jeff Oldham starpowe...@juno.com said:
Yes it does!
From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative
SOLutions
Wrenches,
I posted an absurd price of $13K for the new Outback Radian inverter (GS 8048)
a couple of days ago. It turns out that was a retail price for an installed
system that I quickly googled. A more accurate price is around $6K. I am
looking forward to wrench reviews of this new product.
What was their previous heating source? Calculate the BTU's consumed from that
source and convert that to kWh. If it was resistance electric previously look
at the winter increase from the summer baseline on the old utility bills.
Todd
On Saturday, August 27, 2011 6:05am, Jesse Dahl
What about the 2 volt L-16 versions? Has anyone had success with them for
larger banks? I work alone and HUPs are too heavy to lift on my own... however
24, L-16's in one series string would be a hell of a battery bank too.
Todd
On Friday, September 16, 2011 1:03pm, Ray Walters
My favorite technique is getting the customer to take one of the two handles
while I take the other... but in a pinch, yes... I carefully life these alone.
They do seem to get heavier as I get older... lol
Todd
On Sunday, September 18, 2011 10:31am, William Miller
I had a customer with the same need this spring... and we were able to get them
through Evergreen. With the bankruptcy on now, that might be more difficult,
but worth contacting them. I am sure they have the modules you need... just
getting them to sell them to you (considering the business
Have you considered a burried, underground vault? We did this with broadcast
equipment when I did that work years ago and it worked great at moderating
high/low temp swings.
Todd
On Thursday, September 22, 2011 8:35am, Chris Daum ch...@oasismontana.com
said:
Dear Wrenches:
I have
Does anyone know if it is ok to use the rebar in a pole mount foundation as a
ufer ground? I need to ask the inspector too, but thought I'd ask here first.
Todd
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Wrenches,
I got the following information from a customer who ran the federal tax credit
by her accountant. As a double check... is this correct?
Thanks,
Todd
My accountant wrote:
The taxpayer claiming the credit must be the owner of the home. The value of
these credits adjust
I digress but... the best battery for grid tie with backup is not lead
antimony, but lead calcuum. Surrette makes these too and they use next to no
water and have a much longer warrantied life.
Todd
On Wednesday, November 16, 2011 6:52pm, Jeff Yago jry...@dtisolar.com said:
No
Hi Mark,
I have been grid tied (zero energy since 2004) for 15 years. I used to live off
grid before I moved here to this home 17 years ago.
Todd
On Thursday, November 17, 2011 12:36pm, Mark Frye ma...@berkeleysolar.com
said:
Todd,
I thought you were totally off-grid.
Mark
On Sunday, November 20, 2011 9:32am, Joel Davidson
joel.david...@sbcglobal.net said:
Wrenches,
I answered Richard off-list, but other wrenches may find this information
about old SW4048s and batteries useful.
The SW4048 is a solid machine. We've been using one since 1998 and have
Contact Solarworld to see if they will sell you a couple of the 165's from
their warranty replacement stash. I did this recently with some SQ80's I
needed. They were pleasant to deal with and had what I needed (that no one else
had).
Todd
On Thursday, November 24, 2011 11:41am,
treat this as you would treat metering a standard non battery system. the KV2
meters are for combining the local consumption with the selling to the grid. a
standard, single direction counting kWh meter in series with the 240 v grid tie
will do what you want.
todd
On Tuesday, December
no, he said he only wanted to meter what was being sold to the grid... not what
was sold to the grid plus local consumption (which is the only way to measure
total PV production).
btw austin international (they have a new name now) has cheaper meters.,
todd
On Tuesday, December 6,
that's a nice conservative estimate for input STC kWh to sold kWh jeremy
as far as charge controller kWh to sold kWh, my OB 3648 runs in the ~87% range
todd
On Tuesday, December 20, 2011 3:00pm, All Solar, Inc. allso...@scswifi.net
said:
Wrenches,
I am looking for advice and or
85% of STC kWh or PTC kWh?
todd
On Tuesday, December 20, 2011 5:44pm, Wayne Irwin wa...@pureenergysolar.com
said:
Wrenches,
I am looking for advice and or comments on system performance from a Grid Tied
battery back up system.
Is 65% efficiency fair as far as what goes back to the
I consistently see 87% DC kWh to sold kWh with my Outback system.
(don't forget to also consider the usual STC to PTC derating)
Todd
On Wednesday, January 4, 2012 3:01pm, All Solar, Inc. allso...@scswifi.net
said:
Wrenches,
Once again I am trying to size a grid tie w/battery system
ps i forgot to add i am using a bank of lead calcium wet cells which have a
much lower standby loss than lead antimony.
todd
On Wednesday, January 4, 2012 8:16pm, toddc...@finestplanet.com said:
I consistently see 87% DC kWh to sold kWh with my Outback system.
(don't forget to also
to my knowledge the balancing transformer cannot be used with a grid tie.
are you using two outback kvc2 meters for recording the ac sell kWh? (each 120
volt leg needs one.)
todd
On Thursday, January 5, 2012 1:33pm, Ray Walters r...@solarray.com said:
I have a related question to
i have some personal experience with led light bulbs. i put them outside
because the cfl floodlights are very s-l-o-w to warm up to full brightness.
1) leds are still slightly less efficient (lumens per watt) than cfl's
2) led light bulbs (2 different brands) throw out an ungodly amount of
I've been happy with Trojan batteries. They do say that they need up to 100
cycles to reach full capacity.
so what does this mean for grid ties/battery back-up?
todd
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