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Sunday, December 25, 2011
NetBook Powered By Solar Energy 24/7
Tuesday, December 20, 2011
Sunforce 50048 60-Watt Solar Charging Kit
!±8± Sunforce 50048 60-Watt Solar Charging Kit
Post Date : Dec 20, 2011 23:47:31 | Usually ships in 24 hours
The Sunforce 60-Watt Solar Charging Kit gives you several more reasons to love the sun. Perfect for cabins, recreational vehicles, remote power, back-up power, 12V battery charging and more, this kit comes with everything you need to start producing up to 60 watts/4 amps of clean, free power in all weather conditions. It is also a great choice for clean and silent operation of various electronics, like deer feeders and landscaping pumps. Made of durable ABS plastic and amorphous solar cells, the solar panels will charge in all daylight conditions, even on cloudy days. With built-in blocking diode technology, this charger kit is designed to protect against battery discharge at night. This kit includes: four 15W amorphous solar panels ,a PVC mounting frame, 7 -amp charge controller, 200 Watt inverter, and wiring/connection cables. The maximum temperature range is -40 to 176-degrees Fahrenheit. The Sunforce 60 Watt Solar Charging Kit is the ideal solution for providing the power you need, while helping you save money and protect the environment.
- Amorphous solar charging kit provides up to 60 watts of clean, free, renewable power
- Designed for RVs, cabins, homes, boats, back-up and remote power use
- Weatherproof, durable solar panels can withstand impacts from hailstones travelling 50 miles-per-hour
- Built-in blocking diode helps protect against battery discharge at night
- Complete kit includes four 15W amorphous solar panels, a PVC mounting frame, a 7-amp charge controller, 200-watt inverter, and wiring/connection cables
Friday, December 2, 2011
Living in an Alaskan Field Camp - Designing and Implementing a Reliable Power Supply
Does your research or work take you to remote locations where electrical power is limited or non-existent? I'm not talking about just having to run an extension cord across the parking lot to the nearest outlet...more like needing to provide reliable power for a research camp on a small island in Alaska, accessible only by boat or float plane and over a year in duration. I would like to share the experience I gained from implementing and maintaining this field camp power supply.
That was the scenario one graduate student and I, a field biologist and research technician, faced. Let's just say we had no trouble charging important equipment such as radios and satellite phones or using laptops for data entry & analysis (and maybe a couple of movies).
I would like to share the experience I gained from implementing and maintaining this field camp power supply and will be specifically talking about: types of power sources available for use in remote locations; the basic concept of how these 'sources of power' work; a few simple ideas to help you design a power supply unique to your situation and finally some basic equipment and tools to include in your power supply design.
TYPES OF POWER SOURCES
1. Photovoltaic panels or known more commonly as solar panels: single or multiple panels collecting light energy from the sun, and converting to electrical energy and fed along a cable to be stored in a bank of batteries. Our 400 watt (W) solar panel produced 0-8 amps (A) on average.
2. Portable wind turbines: relatively new in the market of portable power sources but I predict they will get better and more accessible sooner than later. Basically electrical energy is converted from wind power turning a turbine and fed along a cable to be stored in a bank of batteries. I've researched different models and found varying output ratings but the common range for a 400 watt model is 50 to 60 watts or 3-4 amps.
3. *Gasoline powered generator: gasoline powered electrical generator that can be used as your primary power source or as a backup or supplement to another power source. Our Alaskan field camp power source included a Honda EU1000i gas generator in conjunction with a 400 watt solar panel. Gas generator models can range in output power (1000 to 5000 watts: 8.3 to 41.6 amps)
*Remember- account for transporting, storage, usage and re-supply of fuel when using this power source.
4. Portable hydroelectric generator: large scale hydroelectric power is nothing new (there are a lot of dammed rivers out there) but commercially available portable versions of this technology are. In 2010, Bourne Energy made available the Backpack Power Plant-Type 1 BPP-1 (a subsequent militarized version, the BPP-2 has also been recently released.) According to reviews, the BPP's provide clean, quiet power from any stream deeper than four feet, and produces approximately 500 W(40 A) per unit in optimal river flow rate of 2.3 (7.55 ft) meters per second; units weigh less than 30 pounds and are three feet in length.
BASIC CONCEPT
All of these sources can be thought of as the methods for collecting the energy you want to store and ultimately use in your camp. So where does the energy get stored you ask? In a bank of at least 2 or more 12 volt, deep cycle marine batteries. Think of your 'bank' of batteries as equivalent to a bank account, to which you can continually add energy collected from whichever collection methods you decide to use and ultimately 'draw from' to power devices such as laptops, radios, power tools, satellite phones or just general battery charging.
DESIGNING YOUR POWER SUPPLY--YOUR UNIQUE SITUATION
When initially designing your power supply, you need to know your location. What's the local climate? How much sun, wind, cloud cover, rain does your location get? How does all that change with different seasons? How long will you be in this location? Will you be able to access fuel for generators? Is there a stream or river to use a hydroelectric generator? These are just a few examples of what you need to consider when setting up remotely and really need to put some thought into all the possible scenarios you may encounter... better to do it in the comfort of your home or office than finding out it's not going to work while in the field where your options are limited.
What I'm sure you'll find after doing some background research on the types of power sources and what unique site conditions you'll be operating under is that you'll want to use a combination of more than one source. For example, in our field camp it was necessary to have a gasoline generator in addition to the solar panel we set up to collect and deposit energy to our bank of batteries. Knowing there was only so much energy the panel could collect and that was only when it was light out and only in certain types and amounts of cloud cover! Again, the emphasis here is to do the necessary background research in to what YOUR unique situation is.
BASIC EQUIPMENT & TOOLS
1. Power source
2. Cables:
i) Connecting source and load (battery bank); depends on distance needed, usually 12-15 gauge.
ii) Connecting your 12V batteries together (battery bank); 4 gauge.
3. 12 volt, deep cycle marine batteries
4. A Charge Controller. is needed to prevent overcharging of the batteries. Proper charging will prevent damage and increase the life and performance of the batteries.
5. The Power Inverter integral part of the system. It makes 120 volts AC from the 12 volts DC stored in the batteries. It can also charge the batteries if connected to a generator or the AC line.
6. Voltmeter
7. Wire strippers, pliers, multi-driver
8. Extra butt connectors (wire to wire connect)
9. Sandpaper - used to clean battery terminals for good contact
10. Distilled or demineralized water ONLY to replenish batteries
11. Silicone & calk gun --to waterproof electrical connections exposed to weather
Kirkland Washington Hotel Purchase Voltage Converter 110 220 Best
Sunday, November 27, 2011
Xantrex XPower 1500W Portable Solar Power Station
Thursday, November 24, 2011
Why I Love My Solar Power System
It all began when I was living in Haiti in the early 1990's. It was after a Coup that overthrew President Aristide that the US government imposed a trade embargo on Haiti blocking fuel supplies to the country amongst other things. The result was that they had an unprecedented energy crisis and we spent months without electricity. I went out and purchased 12 solar panels from a local merchant for US 0ea, I already had two 2000W inverters and 24 Deep Cycle Batteries. I installed half of this equipment in my house and the other half in my office downtown. We had maybe an hour or two of electricity every 4 to 5 days.
Well, I can tell you this much about the electricity supplied by my solar power system both in my house and in my office:
First, I unplugged the big 2-door refrigerator that I had and purchased a small energy-efficient freezer.
Second, I used a small gas-powered generator I had that I only ran for about 30 to 45 minutes a day just to pump up water from my underground 40,000 gal reservoir to a small 300 gal unit on the roof so I can take a shower by gravity. I must remind you that gasoline supplies were almost zero due to the embargo. The cost per gallon reached US on the black market.
Third, I changed all the incandescent light bulbs to energy saver bulbs.
Forth, I changed my habits from watching TV for hours to just one hour a day, I turn the lights on only when needed, I made sure my batteries never ran dry of distilled water and that the cables and terminals were clean and tight. That's all the maintenance the solar power system needs to run smoothly.
Understand that I was only living off 6 solar panels. For cooking, we used gas ovens. Propane gas was not part of the embargo for obvious reasons.
Now I don't know how to call this if it's not FREE ENERGY.
I must make another side note because I know you're wondering why I had inverters, generators and batteries. Well it's because in Haiti the power grid had always been unreliable, so everybody and every house has a generator, an inverter and a few batteries. In addition to that, I had my solar panels and this is where the difference was. After so many days without power and no gas for the generators, all batteries went dead and most of the city was in complete darkness, so I was one of the few that had lights on all night until I decided to go to sleep.
I had the same scenario in my downtown office where I needed to power three computers, some lights and a laser printer. Back then it was a 300W Apple Laserwriter, so I used a small generator to turn it on, do my printing and then turn it back off. The inverter was not connected to the power grid at all. The batteries were being charged by the 12v solar panels through a charge controller and then converted to 110VAC by the inverter so the computers were never off.
That's a new example of FREE ENERGY.
Some people say that nothing is free. I think that only human made things are not free; everything else is. You don't see animals in the forest pay for their food.
Anyway, I hope this article will open some people's eyes on the tremendous possibilities of solar energy. Remember that the panels can be coupled to a windmill generator for more power, and the combination can be very efficient since the windmill can generate electricity day and night providing you live in a relatively windy area.
Wednesday, November 16, 2011
Introduction to a Small 108watt solar System
Thursday, October 27, 2011
Solar Battery Charger Kit for 12V. RV Marine or Home. Flexible Solar Panel aminate, Charge Controller, PV Combiner box w/breaker & extension Cable
!±8± Solar Battery Charger Kit for 12V. RV Marine or Home. Flexible Solar Panel aminate, Charge Controller, PV Combiner box w/breaker & extension Cable
Post Date : Oct 28, 2011 04:31:18 | Usually ships in 3-4 business days
68 watt Complete package includes 68 watt Flexible Solar Panel, Baby box with circuit breaker, 6.5 Amp Charge Controller and 30' MC Cable. UniSolar flexible solar panel. simple & easy peel and stick installation. Ideal for metal roof. RV /Boat, Home & Commercial applications. Battery charging or Grid tie Solar Systems. UniSolar is one of the largest manufacturer of Flexible Thin Film Solar Panels. Plug and Play.
- Ease of installation Peel and Stick, Install on a fixed surface or carry it around.
- 25 Year performance warranty. Made in USA
- Flexible Light Weight & Durable, Best Resistance to wind uplift, No roof penetration
- Includes 68 watt Flexible Solar Panel, Morningstar Charge Controller and 30' MC Cable
- Better performance then Silicon Solar Panels in Hot climate & partial shades
Good Bargain Philips Electric Razor Black And Decker Toy Workbench Discounted
Sunday, October 16, 2011
Instapark® MPPT-15 MPPT 15 Amp Solar Power Charge Controller, 225 Watt at 12V / 450 Watt at 24V
!±8±Instapark® MPPT-15 MPPT 15 Amp Solar Power Charge Controller, 225 Watt at 12V / 450 Watt at 24V
Brand : InstaparkRate :
Price : $64.50
Post Date : Oct 16, 2011 09:02:30
Usually ships in 24 hours
The Instapark MPPT series solar charge controllers are designed and engineered to prevent your solar-powered battery from overcharging and excessive discharging, therefore protect your investment and extend the battery life. Equipped with MPPT (Maximum Power Point Tracking) technology, this 15 amp charge controller ensures that your battery will reach its maximum charging capacity by sampling the output of the cells and applying a resistance (load) to optimize the ideal voltage and current conditions, therefore maximize the power gain from the solar panel for any given environmental conditions, resulting in highest charging efficiency, fastest recharging and a healthy battery at its fullest capacity.
All MPPT series solar charge controllers are in full conformance with both CE and RoHS standards and are backed up by a standard 2-year manufacturer's warranty.
Nominal voltage: 12 / 24V, automatic recognition
Input voltage range: 12-20V/ 24-40V
Full charge cut (under no load): 13.7-14.4V/27.4-28.8V
Load disconnection voltage: 10.5-11V/21-22V
Temperature compensation: -3 mV/cell*K
Max. solar panel current: 15 amp @ 122°F
Max. load current: 15 amp @ 122°F
Dimensions: 5 x 3.75 x 1.25 inches
Weight: 6.35 oz
Max. wire size: 2.5 mm2
Self-consumption: < 10 mA
Effciency: 95%-97%
Ambient temperature range: -40 to + 122°F
What's in the box:
15 amp MPPT charge controller
User manual
Tuesday, September 6, 2011
How does solar energy to recharge the battery?
Monday, September 5, 2011
Instapark® MPPT-15 MPPT 15 Amp Solar Power Charge Controller, 225 Watt at 12V / 450 Watt at 24V
!±8± Instapark® MPPT-15 MPPT 15 Amp Solar Power Charge Controller, 225 Watt at 12V / 450 Watt at 24V
Post Date : Sep 05, 2011 19:20:15 | Usually ships in 24 hours
- MPPT (Maximum Power Point Tracking) technology maximizes solar panel's efficiency for any given weather condition and protects battery from over-charging and excessive discharging.
- Color-coded battery status LED indicator
- Suitable for both sealed and flooded lead-acid batteries & automatic voltage detection, 12 volts or 24 volts.
- Maximum 15 amp under load, compatible with Instapark™ solar panels and many other manufacturers'
- CE & RoHS Certified with a standard 2-year manufacturer's warranty.