Showing posts with label Portable Solar Tracking Mount. Show all posts
Showing posts with label Portable Solar Tracking Mount. Show all posts

Friday, July 3, 2015

Portable Solar Generator In A Battery Box



Portable Solar Generator In A Battery Box


Nothing makes it more clear that you need an off the grid type of system than when a hurricane hits and knocks your electricity out for a week. Even up here in Ohio, hurricane Ike hit us with winds that left us without power. But, I have also lived in Michigan, where we lost power more often than we lose it here in Ohio. And a portable system lets you use that power in other situations, such as camping or boating. More than that though, it's just fun to generate your own free electricity without feeling dependent upon your local power company.

I have read a number of newspaper stories about seniors who have died in extreme heat or extreme cold, so living without power even for a short time can be life threatening for some.

This post is intended to help you build your own portable solar generator. For this prototype, a battery box was used.

Meter Layout


Portable Solar Generator In A Battery Box - Meter Layout - The Krell Lab

Wiring Schematic

A general schematic of the wiring:

 
Portable Solar Generator In A Battery Box - Wiring Schematic - The Krell Lab


Videos

  Portable Solar Generator In A Battery Box Part 1    - The Layout
        
 Portable Solar Generator In A Battery Box Part 2  - Getting beyond the layout:
  
 Portable Solar Generator in a Battery Box Part 3 - Wiring the layout:

 Portable Solar Generator in a Battery Box Part 4 - Meters & Switches

 Portable Solar Generator in a Battery Box Part 5 - Final Layout & Solar Tracker

 Portable Solar Generator in a Battery Box Part 6 - The Solar Tracker Problem & Trouble-Shooting It
 
   
 Portable Solar Generator in a Battery Box Part 7 - Solar Tracking Problem Resolved
 
Wagan Wattage Guide

 Wagan includes this handy wattage guide with the 400 watt pure sine wave inverter:

Wagan Wattage Guide



Parts List



  I was able to get the box on sale for $9.00, so shop around.
   

  Wagan EL2601 Elite 400W Pro Pure Sine Wave.................$199.95
  
 I was able to get the inverter on sale for $119, so it may help to shop around.

 

 This controller would be for my sealed lead acid batteries. You can get one cheaper without the display.


  Batteries

   PowerStream HR22-12 ...........................................................$ 67.10

   However, a LiPO4 batteries twice as powerful could be used in this space.
   If you use a lithium battery, be sure to also use a lithium controller.
   Also, be careful to insulate the battery from the heat of inverter.

   I have used the Lithium Battery and Lithium Charge Controller in my portable solar generator in a File Folder box.


Blue Sea Systems Dual USB Charger Socket ...........................$ 25.98

  I was able to get this USB socket on sale for $ 16.77

Cigarette lighter fuse/circuit breaker.............................................. $  4.87



Waterproof LED Rocker Toggle Switch SPST Marine .......... $9.99 + $4.49 shipping

Battery Cut-off Switch ....................................................................$ 20.00

   I was able to get the cut-off switch on sale for $8.00
  

 Lighted power switch Cherry SWITCH ROCKER SPST 20A 125V ..............$1.30

 35 Amp Circuit Breaker Digi-Key Part NumberPB1049-ND ..........................$4.55

 Circuit Breaker 15 Amp 1/4" Terminals .........................................................$4.89
 
 Circuit Breaker Switch 20A 125VAC 50VDC .................................................$3.54


Links:
 

Wednesday, June 3, 2015

Portable Solar Tracking Mount



Portable Solar Tracking Mount


Folks have been building portable solar power generators for emergencies, camping trips, and boating. I have always noticed that most just find a place in the sun, and set the unit there. Few, if any had any solar tracking mount for their unit.

I bought a portable solar power generator unit, and got tired of positioning the portable solar panel, so I wanted to build a portable solar tracking mount for it. I also wanted to build a better unit on my own, or maybe two. We had a power outage for a week a couple of years back, and were without power for a week. I think it was hurricane Ike, winds hitting us way up here in Ohio.

I wanted a sturdy mount that would not fall over easily in the wind. On this day, it was windy, but nothing very fierce. It was also partly cloudy, and when the clouds cover the sun, the tracker circuit will wait for about 10 seconds for the clouds to pass, then if the clouds remain, it will search for the brightest spot in the sky. Therefore, there are a couple of times in the video where the mount appears to move back and forth briefly.
  

  

 
The tracking unit can be programmed to reset at night, but I do not plan to leave it out at night, so I have not set that.

Here, I am testing with 10 AA batteries (12 volts) just to look for problems. After I am happy with it, it will simply plug it into my portable solar generator.
I hope to do a video later showing "How To' build it.
 
Here, the mount is single axis, but I am thinking it could become a dual axis by replacing the vertical support with a very small actuator (or just strap another servo to the vertical axis). Not to forget, the tracking circuit requires a limit switch if you use an actuator.


General Design
  

  



Close-Up

 
Portable Solar Panel Mount motor side view - Krell Lab


Portable Solar Panel Mount back view - Krell Lab

Portable Solar Panel Mount base side view - Krell Lab

 Time Lapse Video

http://www.youtube.com/watch?v=AybYJrLvMlY



See also the story at the ServoCity blog:


   Building a Portable Solar Tracking Mount


Some of the parts used for the mount:
-------------------------------------------------------- 
Tripod

MCMElectronics.com

Adjustable Speaker Stand 80lb Capacity    $ 27.59
http://www.mcmelectronics.com/product/555-11650

1 3/8'' Speaker Pole Mount Adapter         $1.89
http://www.mcmelectronics.com/product/555-13807?green=83A9FD1C-3EE1-5B3F-0696-2518B229448E


What I like about the stand is that it should hold up to winds, and it telescopes to 7 feet.
In the winter, the area within the time lapse video is in a shaded area, and raising the mount to 7 feet will enable it to capture the sun during the winter months. It will support up to 80 pounds, is lightweight (7 pounds), and can be carried with or without the carrying case.

-------------------------------------------------------- 
Solar Panel

RENOGY® 30 Watt 30w Monocrystalline Photovoltaic PV Solar Panel UL Listed Module 12v     $64.99
13.5x23.8x1 inches - mine is larger...464mm (18.27") x 556mm (21.9") x 35mm (1.38"), It puts out 1.8 amps
http://www.amazon.com/gp/product/B00JDRG69K?ie=UTF8&tag=reviewazon0a-20
http://www.renogy-store.com/Renogy-30W-12V-Mono-Solar-Panel-p/rng-30d.htm
  

Currently unavailable.
I don't know when or if this item will be back in stock.
-------------------------------------------------------- 
Tracking circuit

Amazon

SBE Solar Tech 12V Digital Solar Tracker Control Board MK3.1  ......$39.00 + $4.62 shipping by SBESolarTech


http://www.amazon.com/Solar-Digital-Tracker-Control-Board/dp/B00HXWTAWM/ref=pd_bxgy_lg_text_y

SBE Solar Tech Sun Tracker Weather Enclosure  ......................$14.99 + $4.62 shipping
by SBESolarTech


http://www.amazon.com/Solar-Tech-Tracker-Weather-Enclosure/dp/B00HXXK97G/ref=pd_bxgy_lg_text_y
 

 If you use a larger panel, or different servo, you may need to add the tracker relay circuit:

  http://www.amazon.com/Solar-Tracker-Booster-Module-Enclosure/dp/B00LZ207SC/ref=pd_sim_86_3/175-8030547-3545713?ie=UTF8&refRID=03QBS19R3BMQBQY9DB38

----------------------------------------
Support Beams (that attaches to panel):


Menard's or Ace Hardware

http://www.menards.com

Plated Slotted Steel Angle 14 Guage 1-1/2" x 2 foot  $ 5.79 each
-------------------------------------------------------- 
Motor, base, & rotating mechanism
ServoCity
http://www.servocity.com/

(8871T31) 1/4 inch Bore Clamping Motor Mount             $ 1.99
(638154) 2 RPM Gear Motor (RZ12-1500-2RPM)               $24.99
       * Weight: 0.27 lbs. each
(9753K65) Gearmotor End Cap                              $ 0.89
or
(9753K66) Precision Gearmotor End Cap                    $ 0.99
(615206) 80T, 32P, 1/2 inch Bore Aluminum Gear           $12.99
(615270) 32 Tooth, 32 Pitch, 6mm Bore Pinion Gear        $12.99
(585438) Round Base A                                    $ 6.99
(585440) 1.50 inch Aluminum Channel                      $ 2.99
(635256) 6 inch length x 1/2 inch dia. Aluminum Tubing   $ 2.69
(633110) 1/2 inch Shafting & Tubing Spacers (12 pk)      $ 1.69

  
Plus miscellaneous parts: beams, screws, washers, nuts, etc.
I will try to get the "How To" build it video out later with instructions