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Thanks Ray for this great site. I'm new to the solar power thing. I need to find a way to charge my rv battery so that I can use my cpap breathing machine and other small appliances. I just purchased a 45 watt Thunderbolt and need some advise. Any help would be appreciated.
Added by John J. on June 30, 2012 at 8:00am — No Comments
I am new to this group and I have a question. I just received a notice that the 145 Watt will probably go up for sale on Amazon.com Friday morning. Does anyone have any idea of when they will be offered again after that? I also heard that there is a $80 coupon available occasionally. Will that be offered again? How can I keep track of these things? I know I can watch the posts, but we are trying…Continue
I think if you ask the general public who the average "do it yourself solar energy enthusiast" is they would say he or she is someone who is trying to save some money. And sure, that's true for a lot of us. Including me!
But that is just part of what motivates most of us, I think most of our members are motivated by what I call "fear of being plunged into darkness". And no matter how small your system is you will avoid that when Mr. Big Grid decides it's your "brown out day"…Continue
I have been working on reducing my consumption for about 2 years now and in the last year have added solar to the mix. Below you will see the usage trends for my PG&E electric bill. Starting with the most recent and I highlight the highest month of that year.
From a high in Jun-July2009 of 1252kwh to a high in Jun-July2011 of 855 kwh. That's a reduction of 397 kwh. (Update) New lowest usage was the last bill May-June…Continue
I would like to propose a meeting of those in Tucson Az on this group any takers?
How it Started:
I started down the solar road looking for a way to have power while camping. I didn't want to use a generator due to noise so I began looking at various portable solar projects out there. There where lots of already packaged systems some small others more ambitious but they all had a high cost. I also didn't know a lot about solar itself other than the obvious 'sun shines on us during the day". I began reading blogs, doing searches and collecting links that held my…Continue
Renewable Ray here, site administrator for the Harbor Freight 45 Watt Solar Panel Kit Community.
I have been getting a lot of private messages from members about a few things and I thought I would create a blog post to touch on a few of those.
Probably the biggest complaint I have been getting is that myself or another administrator [oh yes, they are lurking out there] has edited a members post. Well, sorry but that won't change for so many reasons. One of them…Continue
Added by Renewable Ray on May 15, 2012 at 11:57am — No Comments
I have had a hard time finding a replacement 4 amp fuse for my charge controller. I have looked at many auto/hardware stores. Most have 3 or 5 amp but not 4 amp. Has anyone used a 5 amp with out anyproblems or damage?
would like to charger a 24v sla currie e-bike battery by solar panels. I tried doing it with an ( inverter contected to 12 v battery) inverter connected to elecrtic charger that came with the battery but I failed and damage the electric charger. The SLA battery take a 1.8 amperes for 6 to 8 hrs charge. If I could I would like to go from solar charger to battery having the panels providing the charge.
Well I may have used my last HF coupon for a kit today. Took advantage of an inside track coupon and bought one final metal frame kit. I've become friends with one of the cashiers, when the kits would go out the door she would say something like 'the guys love `em.' Well after a breif conversation about the changes she wasn't so sure anymore.
This gives me 10 15w panels in total. And the truth is where I use them amorphous makes more sence. So I should have the amps I need now. The…Continue
Added by John J. on March 4, 2012 at 5:57pm — No Comments
Hi, this is what happens when you get in a hurry. The blog doesn't make sense. Let me try again. I bought a 45w solar kit from HF. It was a return & was $140. When I opened it, it did not have a regulator.
On "E-How" they tell you how to hook up solar panels to keep batteries charged, since I dry camp this sounded great. Since my solar kit has no regulator and the directions on "E-How" don't mention a regulator, do I need one? Thank You for helping. Jean
Does anybody know about the plugin grid tie inverters ? You know the ones the plug into a light socket ? Are they safe and are they legal ?
I know next to nothing about solar. have been reading this blog for knowledge. It does look pretty complicated, should I just call someone that does it for a living? I like to try to do things like this to learn though.
I have never measured more than 30 watts. The greatest voltage was 14.5 and the highest current was 1.9 amps. If Watts = Volts * Amps or in this case 14.5 * 1.9 = 27.6 Watts. This reading was obtained 12:30 PM on June 20, 2011. Though many other readings were close, this was the highest seen during 2011.
NOTE: Current was kept flowing to the battery bank as long as additional load was added to keep the Charge Controller Cuttoff Voltage at 14.5 or below. The current flow being…Continue
I have the 45 watt system with 2 - 12 volt deep cycle batterys and a 2300 watt converter. My question is, my system sets idle most of the time and just sits there doing it's thing, keeping the batteries charged up and ready to go, is this bad for anything by not using it? I bought this for an o my good situation, thanks everyone!
using #10-2 copper stranded wire 35 ft long from 30 amp charge controller to 9 harbor freight 15 w panels is the #10 wiring OK with that setup.
Hi, I need an accurate schematic for the HF 45 watt controller.
I have three controllers and 9 15 watt panels connected in parallel on the South facing balcony of my condo with an Isc of between 7 and 9 Amps full sun at about 22Vdc.The CC is connected to 2 12V Deep Cycle batteries in parallel.
I saw a blog for the schematic, but the download was not available when I clicked on it.
I like the little controllers, but I want to modify some components so it can handle 10…Continue
ok all.... new here, just bought a three panel system.
first of few questions,
1- should I run ALL my lights, etc off the box provided? I keep popping a fuse. I have two batteries tied together.
OR - can I run the inverter off the batteries direct? So.. in short, can I run appliances (for lack of better words) off the batterys and the box provided? I know the box is a "regulator" to first make sure I dont over charge the batteries, and also to make…Continue
I have been reading up on what betteries are best. The 6 Volt model L16 keeps popping up as the most reliable and longest lasting. Hold on, wait just a second please. I am still picking myself up off the floor after seeing the price per battery. The cheapest I fould is $227.00 for just one. Unfortunately it is at the lower end of the amp/hour scale. The really juicy ones are running about $357.00. Yeah, I want those, about a dozen please. Anybody know where to get these cheaper? Are they…Continue