Tracking the next pandemic: Avian Flu Talk |
SOLAR ENERGY |
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Posted: February 02 2006 at 5:47pm |
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Is there anyone out there who could/would post information (in layman's terms) about solar power? 1) using a solar recharger. 2) Using a larger array/panel to power refrigerator and/or freezer. 3) Installing a whole house system. I am totally clueless on this and although I have tried to figure it out, I just zone out. TIA
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I need to know too I bought a generator and one solar panel and would like as much imformation as posible. They are just sitting in the box I planned to be sitting with a candle one night trying to figure them out. |
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meewee
Valued Member Joined: December 13 2005 Location: United States Status: Offline Points: 595 |
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Sophia; Spoon made a really good post on the pandemic preparedness thread under electricity. It gives the web sites of two solar power companies. Another that would help you out is www.realgoods.com they were really helpful when I was off line. Meewee |
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God Bless us all!
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mightymouse
Valued Member Joined: January 27 2006 Status: Offline Points: 487 |
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SZ, A really, really good site is http://hamiltonferris.com - they span the range from sailboats, camping trailers, and whole house systems. They are great to work with. I have been on a boat out at sea for many weeks at a time and between a wind gen. and 120w solar panel never had to turn on the engine alternator except when it was cloudy for a couple days and there was no wind. Had two battery banks plus a seperate eng. start batt. 'Lived large' so to say off the grid. Reefer, lights, radio, fans, etc. no problem mon. One could do a house for simple needs for a reasonable $. I know that some power cos. have programs to assist people with alternative energy. Some programs are actually quite liberal. Did I say good and liberal in the same sentence? - Whew! that was close. As to reefers and freezers be sure to get one that is both 120v and 12v as it takes too much energy to run an inverter to operate a regular household reefer/freezer. 12v systems are much, much better insulated. You can even get multi-units that run on 120v, 12v, and propane. Some even run on kerosene. Many sailors though learn to do without refrigeration altogether and that is probably the best option long term unless you have plenty of moola. |
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Nothing matters - Therefore everything matters
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Spoon
Valued Member Joined: January 29 2006 Location: United States Status: Offline Points: 607 |
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I'm far from an expert, but this is what I learned so far. Trying to replace the grid, in the average home, can cost $20,000+. The first part of any good solar plan is to trim the fat. High efficient bulbs, appliances, pumps, alternate heat, propane/gas stove, on-demand propane hot water heater, are all good starts. I purchased the book The Home Energy Diet from Backwoods Solar. A very helpfull book. One of their tips talks about phantom power. Some appliances actually draw power even when they're off. It adds up at the end of the month. A cheap switchable power strip solves that problem. Once you calculate your minimum kilowatt (kW) usage from your power bill, you can start building your system. The basic components include: Solar panel(s) - Can be wired in series or parallel to produce 12, 24 or 48 volts. There are several reasons for picking the proper voltage but 12v works well with a basic setup and with wire runs less than a 100' to the charge contoller. Charge Controller - All solar panels wire directly to the charge controller. The CC then regulates the amount of juice that goes into the battery(s). When the battery is charged, the CC backs off to a float charge, basically keeping it topped off. Battery(s) - This all comes down to how much power you want/need in reserve. They come in many different flavors. I decided to go with a couple of sealed AGM (absorbed glass mat) batteries. They're about the safest battery to keep in a living area (no fumes). Inverter(s) - Inverters convert the DC current from the battery to AC household current There are many other options. You can add a generator to supplement battery charging on overcast days and add a power transfer switch. These switches can be manual or automatically switch among solar, generator, or grid. Backwoods Solar is the place to dive deeper into the subject. Edited by Spoon |
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It's not so much the apocalypse... but the credit card bills ;-)
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Spoon, You supplied me with a bit of crucial information/understanding that I have apparently always failed to grasp! That Charge Controller do-hicky! Now the pieces are falling into place. Thanks! Edited by SophiaZoe |
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Spoon
Valued Member Joined: January 29 2006 Location: United States Status: Offline Points: 607 |
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I put together a basic setup for about $1200. If anyone is interested, I can put together a basic set of instructions on how I hooked up a 123w, 7 amp, PV solar panel to a rolling 1500w inverter with 60 amp hour (ah)battery. This setup can be fully charged on a sunny day and half charged on a cloudy day. I wanted the abilty to run my stove fans, TV, flourescent lighting or just recharge cell phones, flashlights, etc. |
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It's not so much the apocalypse... but the credit card bills ;-)
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Spoon, I would personally love it if you would. When I posted the thread I was looking for a good "Reader's Digest" kinda thing. I promise, I have tried to understand this stuff. And just what you posted so far has gone a long way in helping the pieces come together. |
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Spoon
Valued Member Joined: January 29 2006 Location: United States Status: Offline Points: 607 |
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After looking at several panels, and power storage options, I decided to buy a Sharp 123w, 7.16 amp, Solar Panel and Xantrex xPower 1500. The Xantrex has a 60 amp-hour battery and the panel produces about 7 amps per hour. It takes about 8 hours to fully charge the Xantrex on a sunny day. When I purchased this equipment back in November, Costco.com had the best deal on both items.
I will take a few photos this weekend to illustrate the connections.
Edited by Spoon |
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It's not so much the apocalypse... but the credit card bills ;-)
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Ella Fitzgerald
Valued Member Joined: January 15 2006 Location: United States Status: Offline Points: 586 |
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Spoon- You're the man! Thanks |
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Spoon
Valued Member Joined: January 29 2006 Location: United States Status: Offline Points: 607 |
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My Basic Solar Power Installation - Part 1 of 2 Disclaimer: I am NOT a licensed electrician. I taught myself by reading Wiring Simplified by H.P. Richter, and doing all of the electrical work in my home office remodeling project. PLEASE treat all wires as "live" and always respect the dangers of electricity. This panel produces 7 amps in the sun (it only takes about 0.03 amps across the heart to possibly stop it). I first took the panel outside and tested the voltage. The kit comes with a basic voltage tester if you do not have a multimeter. My shed happens to be facing due south and gets about 7.5 hours of exposure/day in the winter. I live on the western side of central New Jersey. I mounted it to one side of the roof, so I can add a second panel in the near future (panel alone runs about $580). I drilled a hole in the roof and ran the wires through (red/black from panel's terminal block and green from grounding screw, both on back of panel)... forgot to mention in my list of supplies above, that you will also need American Wire Gauge (AWG) 14 wire for grounding. I replaced 12 sheet metal screws, that come in mounting kit, with wood screws and fastened panel to roof. I ran wires down the inside of my shed and connected all three to a 1' cut piece (female end) of gray extension cord. I used three crimp butt connectors. You can also use solder or wire nuts. The electrical tape is mainly for weather proofing. I secured the wires with wire staples and then plugged in male end of 85' orange, heavy-duty commericial, extension cord. This is a good time to keep track of the polarity of the prongs. You will need to know this when you make the connections to the Charge Controller on the other side. The easiest way is to use a multimeter or continuity tester to be sure. If the extension cord was manufactured correctly, the prongs should be opposite to the slots when looking at both ends of cord side-by-side, right-side up (+-)(-+) or (-+)(+-). |
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It's not so much the apocalypse... but the credit card bills ;-)
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pola33193
Valued Member Joined: January 10 2006 Location: United States Status: Offline Points: 251 |
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Spoon , this is Pola"s husband Joe , GREAT IDEA please I need information on Charge Controller, and how many batts can you charge at a time thank you |
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pola
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koolsteve
V.I.P. Member Joined: January 25 2006 Location: United States Status: Offline Points: 138 |
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i can help, but since the admin will delete my post just like my others, I will be quick .
In "lamance terms" All solar energy is basically a way of converting energy for your own gain. see, when ever you do somthing, such as kick a ball, that is reffered to as kinetic energy. But there are many other types of energy such as soaler energy. its energy is converted into somthing else by being ABSORBED into those black panels you see on the top. Now i am no expert in this field but this is what I do know from brief studies in school. If you dont understand how to use solar power, then i cannot put enough emphasis on the fact that you probobly cant install a whole house system. But there are many guides on this and it should be that expensive since no one really uses it too much. All i can tell you is that you should probobly higher a professional and that the your idea is a great one, depending on where you live that is. Right now it was raining and cloudy, and now it ridicously hot and sunny. all I ask is that ADMIN DOES NOT DELETE THE POST UNTIL THE TOPIC STARTER READS IT. |
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ninjas rule
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CupcakeMom
Adviser Group Joined: January 20 2006 Status: Offline Points: 140 |
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Outstanding post, Spoon! I have been on the verge of buying the same xantrex product with a solar panel. It is great to get info from someone who has actually connected it all together and made it work.
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Spoon
Valued Member Joined: January 29 2006 Location: United States Status: Offline Points: 607 |
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My Basic Solar Power Installation - Part 2 of 2 Disclaimer: I am NOT a licensed electrician. I taught myself by reading Wiring Simplified by H.P. Richter, and doing all of the electrical work in my home office remodeling project. PLEASE treat all wires as "live" and always respect the dangers of electricity. This panel produces 7 amps in the sun (it only takes about 0.03 amps across the heart to possibly stop it). Meanwhile, behind the facade of this innocent looking patio room The reason I use the female end of the gray extension cord in the shed is so I'm left with the female end of the orange extension cord in the house. If the orange cord is laying around unplugged, I do not have to worry about exposed, live, prongs or someone trying to plug it into a wall outlet. So, now I use the remaining 5' of gray extension cable to connect the orange extension to the Charge Controller. I attach the wires from the gray cable using two crimp ring connectors. The electrical tape is mainly used to take the stress off the wire. Note: Please make sure you attach the wires in the correct polarity. It's important that the red(+) and black(-) match from the solar panel to the controller. The green wire is crimp butt connected to more of the AWG 14 green wire and sent back outside to a 12' ground spike previously used for an electric fence. I'm not sure how necessary this is. It's just the anal part of me coming out. You might also put a ring connecter on the other end of the ground wire and connect it to the middle screw of the closest wall socket plate. That really is a good question for a licensed electrician. Now we have a connection, and electricity, going from the panel to the controller. It's now time to wire the charging side. I set it up to charge anything with a cigarette lighter plug... like the Xantrex xPower 1500. You can also set up a bank of batteries, wired in series or parallel. I found a splitter (1 male to 2 females) at an auto parts store. After cutting off one of the female ends, leaving a couple inches of wire, I used crimp butt connectors to attach it to some of the red/black wire left over from the solar kit. Then, I attached the red/black wire to the controler with two more crimp ring connectors and electrical tape for strength. You can now connect the male cigarette lighter plug, from the Xantrex, to the female plug connected to the controller. After about eight hours of charging, on a sunny day, you can unplug the Xantrex and roll it anywhere in you home. The AGM sealed battery is safe to use in any living space... no fumes. You can also connect any battery backup device that can be recharged from a vehicle. I found two smaller battery backups on sale at BJs and Target. You can usually find 10-20 amp-hour portable power devices in the auto section of most dept. stores. Just make sure they can be DC or car charged. Please feel free to ask me any questions. Jay P.S. I always forget one little detail... the polarity of the cigarette plug is negative along the side (barrel part) and positive in the center tip. Edited by Spoon |
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It's not so much the apocalypse... but the credit card bills ;-)
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That's very thoughtfull of you to do all that.
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Spoon
Valued Member Joined: January 29 2006 Location: United States Status: Offline Points: 607 |
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Thanks Rick, It's much easier for me to do, than explain. |
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It's not so much the apocalypse... but the credit card bills ;-)
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C104
Valued Member Joined: February 06 2006 Location: United States Status: Offline Points: 2 |
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Spoon, Good stuff. One recomndation I could make is to put your charge controller and Xantrex out in the shed, then use the drop cord for your 110 power. DC has a higher line loss than AC. You will find you charge the Xantrex battery pack faster with it out in the shed, using the shortest distance for the DC wiring. You might also go with a bigger DC wire down from the panel to the charge controller and agian from the cc to the battery pack/inverter. Whatever line came with it...Double it (in size, half it in gage #).
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I will not obsess
I will not obsess I will not obsess |
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duncan
Valued Member Joined: February 06 2006 Status: Offline Points: 34 |
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Agreed If you can - purchase a regulator that will do 12/24/48 volts. 24v systems are more efficient than 12v and you offer yourself some flexibility. Invertors ideally should be pure sine wave as opposed to square (alot of equipment can`t abide dirty power) - with 1500w a minimum. Solar energy is very much a balance. Monster batteries are useless - if they can`t be charged. |
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Spoon
Valued Member Joined: January 29 2006 Location: United States Status: Offline Points: 607 |
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Welcome C104, I agree. The shorter the cable, the better. As you can see, the design easily adapts by plugging the gray cords together up in the shed. The orange extension cord helps if you want to limit your outside exposure... if things go horribly wrong. |
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It's not so much the apocalypse... but the credit card bills ;-)
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pola33193
Valued Member Joined: January 10 2006 Location: United States Status: Offline Points: 251 |
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Spoon, polas husband joe, next to my office there is a county school surplus, about 1 month ago i walked in and saw UPS for large computer servers most said no batteries and no charger, i think i only need the inverter batteries... you can get deep cycle any where and charge with solar panels
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pola
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Spoon
Valued Member Joined: January 29 2006 Location: United States Status: Offline Points: 607 |
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Hi Joe, I'm not sure what the benefit would be if there's no battery or charger. If they have a complete UPS cheap, it might be worth picking up although the batteries are probably at the end of their life. And I don't believe there's an easy way to charge a UPS from a solar panel. |
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It's not so much the apocalypse... but the credit card bills ;-)
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duncan
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Most UPS units cannot be used as cheap alternatives to inverters because they cannot be powered on once thay are depleted without an AC supply.
Once thay go dead - they stay dead regardless of battery charge. However - some modern UPS units have external DC inputs (usually 24v) and can be switched on so long as the battries are charged. |
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elbows
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Are solar panels a potential looting target due to their high visibility?
I wouldnt expect to get particularily good results trying to use solar & batteries for applications such as cooking, heating, refrigeration. Will be more useful for lighting (get low energy bulbs, fluorescent or LED lights), radio etc. Still I am in the UK where we dont get an awful lot of sun, so that probably makes me a bit pescimistic about this stuff. Im looking at a mixed solution such as gas for cooking/heating, wind up torches & radios, and converting a bicycle to provide pedal power for powering laptop etc (though I predict the chances of having a functioning internet connection if the electricity situation gets bad to be a bit on the low side, and most governments have legislation they can use to switch off the net in the event of civil unrest) |
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Spoon
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Thanks Cupcakemom. I'm happy that I can contribute after all the help this community has given me. This truly is a special place. Jay |
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It's not so much the apocalypse... but the credit card bills ;-)
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Spoon
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Elbows, I'm lucky that my shed faces south, and my house. It really can only be seen if someone walks into my side yard. Another option is to mount it high. I only plan to power my wood stove fans, satellite radio (if it works), 2-meter transceiver, several rechargable lights, mobile phone and some high-efficient flourescent bulbs... and maybe a small emergency B/W TV from time to time. |
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It's not so much the apocalypse... but the credit card bills ;-)
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C104
Valued Member Joined: February 06 2006 Location: United States Status: Offline Points: 2 |
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Thanks
I did see that, great idea with the cords.
Without trying to hijack and go off in another direction completely... If you can't go out in your own yard...you've got bigger problems than no power... |
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I will not obsess
I will not obsess I will not obsess |
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Spoon
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True... we will all have bigger problems then. Edited by Spoon |
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It's not so much the apocalypse... but the credit card bills ;-)
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merrittjohn
V.I.P. Member Joined: January 31 2006 Location: Afghanistan Status: Offline Points: 62 |
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Here's my two cents worth about solar energy. Forget heating or cooking with it. So much energy is used you would have to spend a fortune in panels. An small airtight wood stove and a couple cords of wood will cover both heating and cooking at a fraction of the cost. Lighting.... more reasonable, but a few kerosene lamps and a couple 5 gallon jugs of kerosene will me much more economical. On my sailboat I had a solar panel array that provided enough power for a tiny (1 1/2 cubic foot) very well insulated 12v refrigerator, my ham and VHF radio and two 12v florescent lights. I used four 6v golf cart batteries (2 in series) isolated from each other by a Perko switch. I plan a different type of solar system. I'm building a small solar oven using a frenel lens and a simple solar water heater ( an insulated, glass topped box big enough to hold a 5 gallon plastic jerry jug painted black) to heat water for bathing. These are some simple cheap (except for the fresnel lens.. and there are much cheaper ways of building a solar oven!) weekend projects that anyone can handle. Emphasis on cheap. For those of us on a pretty tight budget I feel the money is better spant on food. JMHO, John.
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willtolive
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merrittjohn
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Hey Spoon, that was nice of you to post all those pics. I too want to emphasize to you that your line loss will be MUCH MUCH less if you convert to higher voltage close to the panel (perhaps you could bolt the inverter to the underside of the roof or to a rafter) and then run your power to the house. John.
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willtolive
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larrylinux
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Spoon,
You mentioned Costcos as a source for some of the hardware; does anyone know if Sams carries any solar equipment? LL ps - this is something we have been talking about doing for a long time; thanks to spoon and all the others for all the great info! |
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Spoon
Valued Member Joined: January 29 2006 Location: United States Status: Offline Points: 607 |
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John, What's the best way to measure line loss, with and without orange extension cord? Ohms? Edited by Spoon |
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It's not so much the apocalypse... but the credit card bills ;-)
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Spoon
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Regarding the instructions, above, for putting together a basic solar power setup. It' back at Costco.com, 123W Charging Kit with Sharp Panel for $699. If you're interested, I wouldn't wait long. These kits seem to disappear quickly. |
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It's not so much the apocalypse... but the credit card bills ;-)
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sweets
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Ok thanks all really great! Now newbie here what can I power with a 8" by 24" panel? I am trying to generate enough power for a fan for cooling and charging batteries for laptop gameboy cell phone Also I will be in HK on 220 I think I will need to figure this out then ship the items over there This is my first time go easy lololol |
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I'm not a ribbering Jidiot!
www.exaltedshrimp.com |
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Spoon
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Hi Sweets, Can you give me the specs on your solar panel (watts, amps)? |
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It's not so much the apocalypse... but the credit card bills ;-)
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sweets
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Well I saw you can get one that size 16 volts 115 volt 140 watt inverter He says"Power your computer, modem, vcr, tv, cameras, lights, or DC appliances anywhere you go. " |
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I'm not a ribbering Jidiot!
www.exaltedshrimp.com |
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Spoon
Valued Member Joined: January 29 2006 Location: United States Status: Offline Points: 607 |
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Do you have a link I can check out? I just want to make sure you have enough amps coming off the panel and enough amp hours stored in the battery. |
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It's not so much the apocalypse... but the credit card bills ;-)
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I was thinking of disguising the solar panels to look like skylights by putting them on my roof and putting in a box structure or hiding them on my shed and covering the roof with a black tarp so it looks like a cheap roof fix. A bad renovation to me would be believable especially by me It worries me that yours look too easy to steal. arer they visible from other peoples yards Edited by RBARNES55 |
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Spoon
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Great idea! Luckily my shed faces the house so you cannot see it unless you walk through my side yard, between shed and house. Not a safe place to be... uninvited |
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It's not so much the apocalypse... but the credit card bills ;-)
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TomMI
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I have a 1 kilowatt solar array on my house which generates around 60 amps of power on a cloudless day. Anyone with specific questions about how to do this and power much of your home, feel free to ask. I'ts not that difficult, once you understand the relationships between panels, batteries and inverters and the laws that govern battery charging and discharging.
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striper
Valued Member Joined: February 25 2006 Status: Offline Points: 38 |
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Ordered the Xantrex XPower 1500 today. Searching for the solar panel now. My house faces south and there is plenty of sun in my backyard through out the day. I am not sure of I am going to put the solar panel on the roof though. Costco doesn't have any of the high watt solar panels. Any others I should check? Thanks. |
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Spoon
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striper, Here's another place I was checking out, before I made the Costco purchase. |
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It's not so much the apocalypse... but the credit card bills ;-)
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DragonRider
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Spoon, I am ordering a Xantrex today to help supplement my generator. Who makes your charge controller? I am going to have to get 2 smaller panels, 1 now and 1 later. Any other sites you used for reference would be great.
Thanks John |
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Spoon
Valued Member Joined: January 29 2006 Location: United States Status: Offline Points: 607 |
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John,
Morningstar makes a good line of controllers.
Please feel free to ask me any questions. You can also PM as well.
Good luck,
Jay
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It's not so much the apocalypse... but the credit card bills ;-)
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Based on my research, it appears I can do the following to ensure a renewable (albeit limited) supply of power from solar energy:
Get a couple of high capacity AGM 12v batteries;
inverters to convert the power from those batteries to AC;
one or two solar panels to connect to those batteries. I am thinking about installing these INSIDE our skylight (to avoid theft issues).
Am I missing anything here?
Thanks, Bumpman
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