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500 Watt off-grid kit solar power for the do-it-yourselfer

sunpower solar
    • 500 Watt Off-grid Solar Kit
    • diy solar kits
    • This 500 watt off-grid solar system is perfect for a small cabin or other stand alone power requirements. A complete DC power system with batter battery giving you from 4,800 to 9,600 watts of energy storage. This 500 watt off-grid kit can product up to 2,500 watt per day (STC) or 75 kW per month (STC). With four 125 watt solar panels, this off-grid solar system can be expanded with additional battery and solar panel options. Additionally, you have the option of adding a 120 volt AC inverter at checkout.
    • Only: Buy Now
    battery backup This system qualifies for a Federal Tax Credit of 30% of the installed cost!
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500 watt off-grid Solar System

500w solar credits

The Morningstar charge controller is at the heart of this off-grid system includes a charge controller, wiring, breakers and a Midnite combiner box that will allow you to expand by two more solar panels when you are ready. Morningstar’s TriStar Controller is a three-function controller that provides reliable solar battery charging. MorningStar Charge Controller. MorningStar Remote Meter - This remote meter is provided with a mounting plate and 100 ft. of cable. Our 500 watt off-grid solar kit includes battery charge controller, monitor, top of pole rack and will supply you with clean controlled electrical power. Also included in your purchase price is a single line drawing showing how the kit is wired.

ground mount

What's On the Truck:

  • 4 - 125 Watt Solar Panels (Astronergy or ET Solar Subject to Inventory)
  • 4 - IronRidge XRS WEEB Ground Lug
  • 4 - MC4 10 AWG - 30' cable extension
  • 1 - MidNite MNPV6, 6 Position Combiner Box (4 Breakers Included)
  • 4 - MNEPV-15 15 amp DC Breaker 150VDC DIN, 13mm
  • 1 - MorningStar TriStar TS-45, 45 amp Charge Controller
  • 1 - MorningStar Remote Meter
  • 2 - 2/0 - 12" UL Cable, Battery Interconnect (Black)
  • 2 - 2/0 - 12" UL Cable, Battery Interconnect (Red)
  • 1 - 2/0 - 18" UL Cable, Battery Interconnect (Black)
  • 1 - 2/0 - 18" UL Cable, Battery Interconnect (Red)
  • 1 - Multi-Contact MC4 Unlocking Tool
  • 6 - 1/2" Strain Relief for #10 or #12 Wire (Single Hole)
  • (Batteries NOT included in base kit, select from below)


Optional Battery Packs for 500 Watt Off-Grid System Above

1410W solarChoose the off-grid battery option that best fits your off-grid application. The size of the battery bank depends on the amount of power you require (Watts), the amount of time each day you expect to run your appliances, equipment and lights, and your location or available sunlight (If you are adding solar or wind power). As a rule-of-thumb, when considering batteries off-grid, use 3 days of autonomy (No Sun) as a minimum and 50% depth of discharge for your battery bank (80% Maximum).
Watt Hour Storage to 80% Discharge BAT QTY SYS Volts Watt Hours Amp Hours Battery Model INCL: Part # Price  
 1,920 Watts   2   12VDC  2,400   200aH   UPG 200 aH 6V AGM inverter  Cables   BP9990030 
 3,840 Watts   4   24VDC  4,800   200aH   UPG 200 aH 6V AGM inverter  Cables   BP9990031 
 7,680 Watts   8   24VDC
 9,600   400aH
  UPG 200 aH 6V AGM inverter  Cables   BP9990034 
 15,360 Watts   8   48VDC  19,200   400aH   Rolls Surrette 6v,
400 Ah S530 inverter
Cables & Float Hydr  BP9990009 


Optional Accessories Part # pre-wired electricalPrice  
IronRidge UNI-TP/04 Top of Pole Mount for 4 Panels (Schedule 40 Pole Not Included)mppt  BP6904340solar roof rack
1 Set Basic IronRidge Ground Racking Option D (6 Rack Sets Required for 6 Solar Panels); 4 - Rails, XRS at 168", Clear; 4 - SGA Top Cap at 3"; 8 - SGA Rail Connector at 3"; 4 - WEEB Grounding Lug; 4 - 4-pack, End Clamp (G) 1.97", Mill; 2 - Kit,ironridge solar racks
 4pcs, Mid Clamp G, 2.50", Mill (Tbolt); 8 - WEEB Compression Clip; 12 - Wire Clip, Molded PVC Black; 8 - End Cap, XRS Rail, Molded PVC Black 
 BP6932304solar ground rack
1 Set Basic IronRidge Roof Mount Racking Option D (6 Rack Sets Required for 6 Solar Panels); 2 IronRidge Rails; End Clamps; L-Foot; 1 - WEEB Compression Clip; ironridge solar racks
 and WEEB); Wire Clip Molded PVC Black; End Cap XRS Rail Molded PVC Black; Oatey Galv. Flashing;
 BP6932304solar roof rack
Outback Comprehensive Battery Enclosure (Batteries Sold Separately) - Up to 600AH / 28.8 kW / 28,800 Wattsmppt  BP9890051battery box
outback energycell
Outback Battery Enclosure w/ 4 - Outback EnergyCell 200RE Batteries Expandable to 12 Batteries / 28.8kWh Backup Power
 BP9890050-1outback rack

Battery Enclosure Options Specifications Part # Price  
Non Insulated Chest Style Enclosure 28 x 38 x 20 8 - Grp 27 Type Batteries battery BP8935162cheap solar kits


residential freight

**Freight Shipping (Freight Delivery is Dock to Commercial Dock)

solar kits

Item that are too large or heavy to ship UPS and have to be palletized are shipped by ground freight. In circumstances where we offer shipping, free or otherwise, that means dock to commercial dock (not residential) to any of the lower 48 states. If the customer does not specify a local commercial dock that is available, we will ship to the nearest terminal where the shipment will be held for will call pick up by the customer. If you choose to have your order shipped to your residence, most orders require special handling for unloading and the pallet has to be transferred to a truck with a lift gate. In most cases, truck freight companies do NOT require their drivers to unload shipments. An additional "Residential" as well as a "Lift Gate" special handling fee will apply if the driver unloads the merchandise to the curb at your residence. The special handling fee is $89.00 and is available at checkout. If you have selected this add on service, the shipping carrier will call and schedule delivery of your solar kit, (provided the weight and dimensions of the product fits the criteria for lift gate service). You can avoid the residential and lift gate fees by arranging a "Will Call" pickup at the closest freight company terminal. In that case, you will need a pickup truck, a copy of the bill of laden, and a photo ID. When you arrive at the freight company terminal, the freight company will load your order into the bed of the truck with their forklift. The most common pallet size = 65" X 44" (Height depends on Product). Be sure and check for hidden damage.

Mechanical Data


Depends on solar module orientation. 10’-0” W x 6’-4” D. W x D x H (Height is dependent on angle of panels and height of pole. Normal year round setting would be latitude.)
Ship Wt Approximately 320 lbs (Batteries @ 65 lbs ea)
Top of Pole Mount Rack (Pole Not Included) Must be placed where there is no shading.

*Solar Panel

Mitsubishi MF125UE5N 125 Watt Solar Panels (*Equal or Better, Subject to Availability)
Open Circuit Voltage (VOC) 21.8 Volts
Maximum Operating Voltage (Vmp) 17.3 Volts
Short Circuit Current (Isc) 7.9 Amps
Maximum Power Current-IMP (A) 7.23 Amps
Maximum Power at STC (Pmax) 125 Wp
Maximum System Voltage 600 VDC
Short-circuit current temperature coefficient (Isc) 5.02 x 10 -3 A/˚C
Open-circuit voltage temperature coefficient (Voc) –8.0 x 10 -2 V/˚C
Peak power temperature coefficient -4.47%/C
Power tolerance +10 / - 5%
Weight 29.8 lbs
Surface Maximum Burden Weight .28 lbs/sq. inch (30m/s, 200kg/sq.m)
Front Glass 0.13 inch tempered glass
Junction Box Type IP65 rated
Dimensions 58.9 x 26.5


ExcelTech XP-1100 / 12VDC AC Pure Sine Wave Inverter

Input battery voltage range 13.8 VDC
Nominal AC output voltage 120 VAC single phase (± 6%)
Output frequency and accuracy 60 Hz ± 0.1 Hz
1 msec surge current (amps AC) Line-Neutral: 120, Line-Line: 70
5 sec surge power (real watts) 2200W
30 sec surge power (real watts) 2200W
Continuous power output at 25° C 1100 VA (L-L)
Maximum continuous input current 107.8 A
Inverter efficiency (peak) 94%
No load (120 VAC output, typical) 1100 watts
Waveform Pure Sine Wave
Charger Continuous output at 25° C 60 ADC
Input current at rated output (AC amps) at 120 VAC
Power factor Greater Than 0.95

Morningstar Tristar TS-45, 45 amp Charge Controller

Xantrex C35 Charge Controller

Rated Solar, Load or Diversion Current 35 Amps
System Voltage 12 - 24 Volts


Morningstar TRISTARMETER-2

LED Display Display shows inverter and battery status
Four directional pushbuttons for easy navigation of display screens. Backlighting to enhance readability. Meter may be added during initial controller installation, added as an upgrade anytime in the future or connected temporarily for troubleshooting and then using this same meter at other sites.

*AGM Batteries

Battery Specifications (*Optional Batteries are subject to availability, equal or better)

Nominal Voltage 6 Volts
20 - Hr. (10.0A) 200 Ah
Approximate Weight 65 lbs Each
Number of Batteries Included Dependent upon option selection.
Shelf Life 3 Months 91%; 6 Months 82%; 12 Months 64%
Temperature Dependency of Capacity (20 Hr) 104 Deg F 102%; 77 Deg F 100%; 32 Deg F 85%; 5 Deg F 65%

(Optional) Top of Pole Mount Ground Rack (Pole Not Included)

IronRidge UNI-TP/04A Top of Pole Mount for 4 Panels

Pole Diameter 6 inch (Requires a properly anchored schedule 40 pipe(Pipe Not Included))
Panels IronRidge Pole Mounts are a very sturdy and straightforward pole mounting solution for small area solar needs. With user-adjustable tilt angle settings, the solar pole mounts they can be used in installations for a wide range of off-grid applications. Easy tilt adjustment ensures optimal alignment in a range of environments, year around. Heavy-duty, corrosion-resistant aluminum means long-term reliability and value.


Approximate Total Weight 360 lbs
Warranty Rack 10 years, Solar Panels 20 years, Charge Controller 2 Years, Inverter 5 years (Optional at Checkout)
off-grid kit

Product Documents & Manuals

cabin solar Mitsubishi MF125UE5N 125 Watt Solar Panels (equal or better) Data Sheet
remote solar ExcelTech AC Inverter (Not Included In Basic Kit / Option Available at Checkout)
stand alone Xantrex CM (Monitor)
battery kit Xantrex C Series Charge Controller
ground mount IronRidge UNI-TP/04A Top of Pole Mount for 4 Panels
ironridge solar racks MidNite Solar Outdoor Rated Combiner Box
off-grid kits Batteries, AGM Type, 6 Volt, 200 Ah
ground mount solar STC Glossary Explanation
dc ac electricityNEC Suggested Practices

Off-Grid System Sizing Starts With a List of Equipment

The size of an off-grid solar electric system depends on the amount of power that is required (watts), the amount of time it is used (hours) and the amount of energy available from the sun in your area (sun-hours per day). A homeowner has control of the first two variables, while the third depends on location. We know we are preaching to the choir when we say conservation plays an important role in keeping down the cost of any solar system, but it plays a much bigger role in off-grid solar. To start the off-grid design process, we recommend you make a list of your lighting, refrigeration, major and small appliances and well as estimate in each case how long you usually use each one each day (Duty Hours). (Don't forget well pump if you intend to run it off the same set of batteries). Standard freezers and refrigerators can use 3000 watt hours each day. A few better models like Maytag MTB1956 18 cu ft can be found to use under 1500 watt hours a day, and cost around $900. Refrigeration cycle time is usually a function of efficiency, but also it is a function of how full the unit is, how often it is opened, and the outside temperature. Typically we use 10 hours as the duty hours for most refrigeration calculations. To illustrate the point, the daily energy use of a R10 high efficiency SunFrost refrigerator will use 13 amp-hours (170 watts) at 70 degrees, but 23 amp-hours (280 watts) at 90 degrees.

When considering the battery capacity needed, first look to more energy efficient appliances. Then we suggest you consider battery capacity (kWh or Ah) to be a minimum of twice the average daily solar electricity generation. For longest life, sealed maintenance-free batteries (VRLA, gelled electrolyte, AGM, etc.) should not be discharged to greater than 50% of their total capacity rating within a 24 hour period.

Minimum suggested battery capacity (kWh or Ah) is the largest battery bank size that the solar arraay can recharge from 50% depth-of-discharge (DOD) on an average day in December. When we design an off-grid or bimodal solar system when calculating battery capacity (kWh or Ah), we assume there is no other means of recharging the battery bank other than the solar system.

Here are some average home appliance wattages to help you get started on your list:

Laptop 50 - 65 Watts
Cell Phone 5 Watts
Table lamp 25 Watts
Inkjet Printer 50 - 75 Watts
Clock Radio 10 Watts
13” CRT TV 50 Watts
20” LCD TV 370 Watts
Table Lamp 40 Watts
8.8 cu. Ft. Freezer 80 Watts
Sump Pump 1/2 HP 500 Watts
Microwave 1200 Watts
18.8 cu. ft. Refrigerator 600 Watts
Coffee Maker 1000 Watts
Vacuum Cleaner 1200 Watts
Washing Machine 400 Watts
Well Pump 1 HP 240 V / 9.8 Amp Surge 2352 Watts
Home Alarm Protection System 15 Watts
Electric Hot Water Heater 3800 Watts
Dishwasher 1200

500 watt off-grid solar system remote living pre-packaged cabin farm ranch solar system

500 Watt Off Grid Solar Kit Do-It-Yourself energy will keep the lights on while enjoying the freedom that only stand alone solar can give you. Do-it-yourself off-grid owners everywhere are discovering that installing a 500 Watt Off Grid Solar Kit is no more difficult than some of the minor home maintenance that needs to be done. Blue Pacific Solar' team have designed and engineered these off-grid home solar energy kits to make taking the solar leap doable.

These days cabin owners are searching for ways to lower their expenses making our 500 watt off-grid solar kit perfect for that weekend escape. Our 500 watt off grid solar kit are expandable to any size you need. The 500 Watt off-grid solar kits qualify for the 30% federal tax credit. You can find out more by visiting the incentive tab located near the top of the page. The 30% federal tax credit allows you to deduct 30% of not only the total cost of the 500 Watt Off Grid Solar Kit but also all other expenditures associated with the purchase. Cabin owners who purchase the 500 Watt off-grid solar kit may carry forward the excess credit to the following tax years. However, you should always consult your personal tax advisor.

Blue Pacific Solar has provided all of the main parts you will need for your 500 watt off-grid solar kit, but here are some additional items that your may need prior to installing your home panel system. Conduit, appropriately sized electrical wire, some fasteners and grounding rod and wire. Building and installing your own 500 Watt off-grid solar system is not only the smart choice for controlling your expenses, it may be on the most satisfying DIY projects you ever have undertaken.

500 Watt solar nec500 Watt building code compliance

NOTE, IMPORTANT 500 Watt Off Grid Solar Kit INSTALLATION: (OK, here is the scary legal disclaimer.) It is the responsibility of the purchaser to ensure that all products are installed and operated in accordance with local and national building codes as specific by the NEC (National Electric Code), UBC (Uniform Building Code) or IBC (International Building Code) and local utility company policy. These codes may vary from city to city and county to county. All off-grid solar installations should be permitted and inspected, where required, by  the local inspection authority in the same manner as other equivalent electrical systems. One last thing. It is always a good idea to contract with a local licensed electrician to at least do the final electrical connection of your 500 Watt Off Grid Solar Kit from the AC disconnect to your home utility breaker box. Some local permitting authorities require that a licensed electrician do all the wiring from the rack to the utility interconnect. If you need help with the permitting documents for your 500 Watt Off Grid Solar Kit package, we are here for you. Solar permit service add on is available at checkout.