Re: [RE-wrenches] sources of DC equipment

LED's pretty much last forever, have a poorer light spectrum. And what Dan said is basically correct in most cases. On a lumen for lumen basis LED's are not much different than CFL''s. .. Northern A

[RE-wrenches] Entertec service manual

Does anyone have access to a service manual for a 4 K Enertec windmill ? The owner has an operators manual but no service manual.. Thanks, Bob ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings

Re: [RE-wrenches] Entertec service manual

Bob, We may have one here but I won't know until I dig through some stuff in the barn.stay tuned. Roy Butler NABCEP Certified Solar PV Installer® NYSERDA eligible PV & wind installer PA Sunshine Program Approved PV Installer Four Winds Renewable Energy, LLC 8902 Route 46 Arkport, NY 14807

Re: [RE-wrenches] Entertec service manual

Just knock the cow and hog shit off it. Let me know what you need if you have one. Thanks, Bob On Mon, Apr 12, 2010 at 10:00 AM, Roy Butler wrote: > Bob, > > We may have one here but I won't know until I dig through some > stuff in the barn.stay tuned. > > Roy Butler > NABCEP Certified Sola

Re: [RE-wrenches] DC wire sizing

I would never design such a system. That is what MPPT controllers are for. 10 years ago we did not have that choice, but now we do, so there is no reason at all to design a 40 amp 12 volt array circuit. .

Re: [RE-wrenches] Entertec service manual

OOPS this was not intended to go to the group sorry.. Bob On Mon, Apr 12, 2010 at 10:08 AM, robert ellison wrote: > Just knock the cow and hog shit off it. > > Let me know what you need if you have one. > > Thanks, > Bob > > On Mon, Apr 12, 2010 at 10:00 AM, Roy Butler > wrote: > >> Bob,

Re: [RE-wrenches] Entertec service manual

...and there it went again. gotta love it Bill Feather River Solar Electric - Original Message - From: robert ellison To: RE-wrenches Sent: Monday, April 12, 2010 7:12 AM Subject: Re: [RE-wrenches] Entertec service manual OOPS this was not intended to go to the grou

[RE-wrenches] low cost DAS systems

Good Day Wrenches, I'm looking for suggestions for a low cost DAS system for home/small commercial use. It just seems to be such a useful basic tool to verify performance other than just the Kwh meter. I'd like to add this to all of our clients quotes and projects. Looking for the basi

Re: [RE-wrenches] low cost DAS systems

Chris, I've had one of my guys research this same question a while ago and the conclusion was the as far as low-cost DAS systems, Fat Spaniel was the big winner, as in under $1,000 which includes a year's worth of monitoring. Cheers, marco Good Day Wrenches, I'm looking fo

[RE-wrenches] Home energy monitoring was (low cost DAS systems)

I'm looking at TED 5002-c. The Energy Detective tech says that you can monitor home usage as well as the inverter. It's sent to a transmitter and wireless to your computer to view energy usage and inverter production. Any experience with this product? What types of home energy monitoring devices

Re: [RE-wrenches] Home energy monitoring was (low cost DAS systems)

We have used several systems produced by APRS World with great results. Here is a example of some of the data on 2 different systems. BTW, not a great wind day in Montana. http://data2.aprsworld.com/data/ps2/current.php?station_id=A2439 http://data.aprsworld.com/sites/midnite/montana/ As for th

Re: [RE-wrenches] Home energy monitoring was (low cost DAS systems)

I really like the eGauge (http://www.egauge.net/index.php), and have one on my house : http://egauge68.d.egauge.net/. It's a small operation out of Boulder. The device uses CTs and voltage taps, so you can measure just about anything, like any specific sub-circuits or loads in addition to the main

Re: [RE-wrenches] low cost DAS systems

Chris, Locus Energy has a low cost, revenue grade system that will work with all inverters. We have several dozen deployed and they're working well. Customer needs to have a high speed internet connection. www.locusenergy.com I've tried the TED and found

Re: [RE-wrenches] DC wire sizing

I know you wouldn't, Warren.  Because it is much more economical (that means more kWh/$) to use a MPPT controller.  But you would run a 100-volt 30-amp PV array to a MPPT charge controller that is 150 feet away.  For that distance, it takes 1/0 wire to get the wire loss down to 1%.  I'd probabl

Re: [RE-wrenches] low cost DAS systems

I think the big this here is Low cost? Maybe we should define the price range so we can get a better fell of the product range? Logan > Chris, > > > > Locus Energy has a low cost, revenue grade system that will work with > all inverters. We have several dozen deployed and they're working well

[RE-wrenches] Off-Grid Diesel Generators

Wrenches, Can anyone in the off-grid market, in colder climate regions (i'm at latitude 53) suggest or recommend a reliable diesel generator for off-gird home back-up. It will likely be coupled with two Outback VFX3648's and a 1500 to 2500 amp/hr battery. Any experiences with pairing Lister g

Re: [RE-wrenches] low cost DAS systems

The Locus system is less than $1,000 for single phase. Jeff -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of wlbr...@pineridgeproducts.com Sent: Monday, April 12, 2010 2:50 PM To: RE-wrenches Subject: Re: [RE

[RE-wrenches] 600VDC Safety Switch question

Wrenches, We need recommendation of a 200A or larger (400A or 600A preferred) two-pole or three-pole, double-throw, 600VDC rated, manually operated, load-break- and load-make-rated, service-equipment rated, fusible or nonfusible safety switch for purposes of switching DC input. Square D 82345

Re: [RE-wrenches] Off-Grid Diesel Generators

Benn, The only thing I have heard about NL generators was about 5 years ago there were some issues with a generator in Alaska that used a capacitive coupled regulator that didn't like the way Outback loaded it down when charging batteries. The only thing that helped was the addition of a $60

Re: [RE-wrenches] Heat pump water heater

William The key to effective HPWH's is location--- It will need a space large enough, or with sufficient thermal mass, to provide fairly constant temps above 50+ *. Ideally 65+, but not above 100 or so.Also, humidity is a large component of there efficiency factor--the more the better! We've p

Re: [RE-wrenches] Off-Grid Diesel Generators

Ben, Here in Maine we don't install diesel gennies in off grid applications. Typically, diesel gennies require a block heater which can use as much as 1000 watts. Unless this is a tremendously large off grid system it won't be a good idea to go that way. Why not just use a propane gennie. The

Re: [RE-wrenches] 600VDC Safety Switch question

Allan - What is the application? Are you trying to switch a large PV array before the inverter but after the strings have been fused and combined? -August August Goers Luminalt Energy Corporation O: 415.564.7652 M: 415.559.1525 F: 650.244.9167 www.luminalt.com _

Re: [RE-wrenches] 600VDC Safety Switch question

August, Precisely. And it's a dumb idea, I know. But it's part of a utility-scale RFP, and it specifically calls out switching the DC input. This is too early a stage in the process to figure out better approaches; first we have to qualify for the job. Surprisingly, Boltswitch makes one, and

Re: [RE-wrenches] DC wire sizing

I haven't checked my e-mail for days, but have to add to this topic. Hi Kent: In a few isolated situations, a cost analysis may be done to justify not designing at 1-2% DC Voltage drops, but for most systems the cost of the wire is less than the cost of the PV. I buy my wire for about 1/4 th

Re: [RE-wrenches] Off-Grid Diesel Generators

Steve,Thanks for the feedback. A Northern Lights dealer i spoke with is selling Outback equipment as well. I'll bring this up with him to see if he has seen this issue and how they have dealt with it.cheers,benn DayStar Renewable Energy Inc. b...@daystarsolar.ca780-906-7807 HAVE A SUNNY DAY

Re: [RE-wrenches] DC wire sizing

Nick, Yes, the wire prices I used were way out there, but I wanted to use a currently published value that everyone has access to.  It only takes a few minutes to update wire prices in a spreadsheet so I look at the value of larger wire for every job.  I'm not trying to promote large wire loss

Re: [RE-wrenches] Off-Grid Diesel Generators

Hi all for what it is worth, I have heard of strange things with the northern lights and other inverters.  ( think it was about switching spikes when working with inverters)  This seems to be special with the northern lights generator. --- On Mon, 4/12/10, benn kilburn wrote: From: benn kilbur

Re: [RE-wrenches] 600VDC Safety Switch question

Allan, Square D makes 2-, 3-, and 4-pole models from 30 amps to 1200 amps that are 600Vdc rated. They have by far the most selection of any company at the moment. The 200-Amp and up versions must pass through two poles of the same switch. I'm using 3, 2-pole 600A units on 500 kW inverters at th

Re: [RE-wrenches] sources of DC equipment

On Apr 11, 2010, at 9:11 , Darryl Thayer wrote: > Where are people getting 24 or 32 or 48 volt CFLs? Are there any LED now > suitable at these voltages? Others have commented on the general state of things DC - I have a slightly different perspective coming form a telecom background and t

Re: [RE-wrenches] DC Wire Sizing (Ethics & VDrop)

Kent, Nice to meet you I've enjoyed your past posts and I like what you wrote below, and I definitely understand that you're just roughing it. Sometimes I hear people say we should "Add more PV," even when it doesn't necessarily solve our problem. Most often it's not that easy to add more PV

Re: [RE-wrenches] DC wire sizing

The original rationale was probably due more to solar panel costs more than anything else - at a time when solar was $10-15 a watt, and copper was cheap it made sense. But now that solar panels cost 1/5th as much and copper wire is 4x as much, probably not so much now. Nowadays it is quite ofte

Re: [RE-wrenches] Off-Grid Diesel Generators

Daryl,The customer specified that he would like a diesel gen. I haven't tried to sway him towards propane yet, but we are still refining his load calculations and the site will likely not be ready for the install for a few months at least. I also like the fact that there is typically already p