A Simple Operation
The system derives most of its energy through the solar Photovoltaic (PV) array.  The PV array supplies DC power to the inverter during the day and at the same time charges a bank of batteries.  The inverter converts the DC power into AC at 120/240 Volts as required to operate your appliances.  At night time the batteries supply power to the inverter thereby providing reliable power 24 hours a day.   There is a DC generator in the system to charge the batteries during heavy energy usage or periods of poor sunshine.  The DC generator is more efficient and reliable than an AC generator.  AC generators, however, are available

Completely engineered as a system. 
In a solar electric system there are many engineering factors that should be incorporated into the system design to maximize reliability and efficiency along with lowering maintenance.

System incorporates Thermoregulation for longer component life.
A combination of passive and forced ventilation keeps the inverter, batteries, and generator running cool.  For each 10 degrees over room temperature the life of the batteries is decrease by one half.  In addition hot enclosures decrease inverter capacity and reliability along with increasing the generator’s oil maintenance requirement.   Even in cool weather with conventional shelters, the heat build up from the inverter and batteries under charge and or the generator operation can raise the shelter temperatures to destructive temperatures.

Can be shipped and installed any where in the world.
Polar's Complete Solar Electric Systems can be shipped either assembled or on pallets ready for assembly.  The enclosure is constructed of a 2" x 2" steel frame tubing and steel C channel, and sheet metal bonded o plywood.  The base frame is welded 4" C channel for unitized strength. The entire base is then hot dipped galvanized to protect the welds and metal from corrosion.  For the flooring we fasten 14 gauge galvanized sheet metal to the top of the base.  The roof section is constructed of welded 2" x 2" steel square tube.  The roof and base section are joined by 2" x 2" square tube columns. Painted galvanized sheet metal is bonded to plywood and these structures form the walls and secure the base, roof, and columns.  The PV array supports are also constructed of 2" 2" steel square tube, hot dipped galvanized. 

Simple and concise wiring meeting National Electric Codes.
Wiring on a production bases (as opposed to custom installations wired in the field) provides better documentation, cleaner wire runs, and greater immunity to lightning surges.  Polar provides wires that are numbered on each end for easier trouble shooting, optimum wire gages are used with the correct circuit breaker capacities.  Polar uses the very best 105 C and higher rated wire with very long life insulation materials.  Humidity, temperature, battery acid, engine oils and fuels can break down many of the lower cost wire insulation materials,  Polar uses the best insulation materials for safety and long life.  Detailed wiring schematics are provided.

Adjustable tilt on the PV array structure.
Simple to adjust array tilt maximizes solar energy output season to season.

Easily transported to the site.
Polar can ship these systems completely knocked down (knocked down shelter adds slightly to the cost) or completely assembled. This facilitates remote installation via smaller helicopter or truck.  The PV array mounted on the shelter will fold down small enough to allow a completely assembled system to be trailed and dropped off on site with out road permits.  Unlike other shelters Polar’s very rugged frame design allows transportation without twisting or warping of the structure.

Heavy Usage - This system will provide 9 kWh per day on an annual average from the sun’s energy (areas with 5 peak solar hours).  With Polar’s 8 kW, DC generator, installed the capacity will be increase to over 100 kWh per day.  The standard Trace inverter option is capable of starting motors up to 1/2 HP. Optional soft starter or second Trace inverter will power larger HP pumps.  This system power quality is safe for most motors, computers and electronics. The system is guaranteed to power your home electronics center and not interfere with its performance. Using solar energy alone it will provide sufficient electrical power for the moderate use of:

• Lighting

• Entertainment equipment

• Small appliances

• Refrigerator

• Clothes washer and gas dryer

• Dishwasher

• Computer

• Water Pump

• Evaporative Cooler

Includes:

• 1,800 pW Photovoltaic Array. Polycrystalline or single-crystalline based on availability at time of order.

• Array produces a nominal 9kWh per day of electricity in moderately sunny weather.

• 8 kW 48 VDC propane generator, Model 6250 alternator with Kawasaki 750 water-cooled engine (also available in Diesel fuel).

• Available as either 24 or 48 Volt system. Use 48 for higher AC inverter efficiency.

• Walk in Shelter, 44 inches wide and 103 inches long. Provides convenient "out of the weather" access to all controls, battery banks, generator, and inverters. 

• Circuit breakers. For PV array and inverter.

• Type T fuses for short protection on the DC generator and battery banks.

• Galvanized adjustable tilt PV array structure. PV array is hinged for convenient seasonal adjustments.

• System can be expanded by increasing the number of PV modules. 

• Wiring in place ready for battery and array installation. 

Costs are FOB Polar facilities in Carson (Los Angeles) California: 

Please click here for pricing

• Basic system, including 1,800 pW PV Array, and Polar DC generator. 

• 16 qty of Trojan L16 batteries with copper buss bars.
  
  There are two AC inverter choices available (Note, for 220 VAC operation two inverters are required):

Model 2400 pW

Very Heavy Usage - This system will provide 12 kWh per day on an annual average from the sun’s energy (areas with 5 peak solar hours).  With Polar’s 8 kW, DC generator, installed the capacity will be increase to over 100 kWh per day.  The standard Trace inverter option is capable of starting motors up to 1/2 HP. Optional soft starter or second Trace inverter will power larger HP pumps.  This system power quality is safe for most motors, computers and electronics. The system is guaranteed to power your home electronics center and not interfere with its performance. Using solar energy alone it will provide sufficient electrical power for the moderate use of:

• Lighting

• Entertainment equipment

• Small appliances

• Refrigerator

• Clothes washer and gas dryer

• Dishwasher

• Computer

• Water Pump

• Evaporative Cooler or Air Conditioner

Includes:

• 2,400 pW Photovoltaic Array. Polycrystalline or single-crystalline based on availability at time of order.

• Array produces a nominal 12kWh per day of electricity in moderately sunny weather. 

• 8 kW 48 VDC propane generator, Model 6250 alternator with Kawasaki 750 water-cooled engine (also available in Diesel fuel).

• Available as either 24 or 48 Volt system. Use 48 for higher AC inverter efficiency.

• Large Walk in Shelter, 88 inches wide by 103 inches long. Provides convenient "out of the weather" access to all controls, battery banks, generator, and inverters. 

• Circuit breakers. For PV array and inverter.

• Type T fuses for short protection on the DC generator and battery banks.

• Galvanized adjustable tilt PV array structure. PV array is hinged for convenient seasonal adjustments.

• System can be expanded by paralleling systems. 

• Wiring in place ready for battery and array installation. 

Costs are FOB Polar facilities in Carson (Los Angeles) California: 

Please click here for pricing

• basic system, including 2,400 pW PV Array.

• 24 qty of Trojan L16 batteries with copper buss bars.
  
  There are two AC inverter choices available (Note, for 220 VAC operation two inverters are required):