Spec Comparison

  Expandability Efficiency Usefullness
  inverter charge
controller
Input
range
Battery Low
Idle
MPPT Pure Sine
Wave
True
Deep Cycle
Portable
Panels
Recharge
Time
Run
Time
HomeGrid 5000HD
Extreme
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Total Solar
Solar Max 6000
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Goal Zero
Yeti
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Humless
1500
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Innergy
Kodiac
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Expandability:
Inverter
– The inverter is not something that can be easily upgraded, so if the inverter size is not at least 3,000 watts we don’t consider it expandable.
Charge controller– The charge controller will set the limit to how much solar you can add to your system.  If the charge controller cannot handle at least 1,000 watts, we did not mark it as expandable.
Input Range–  This is the Input Voltage of the Charge controller.  If you have a large range of voltage input, then it will make it much easier to add more solar panels to your system.  We don’t consider it a large range unless it can handle over 50V and have a MPPT charge controller.
Battery–  Unless the system is designed to add external batteries, there will be very little you can upgrade.

Efficiency:
Low idle
– This is the power the generator uses just to power the inverter.  This power usage is the most important efficiency measurment of of your inverter, as your inverter will wast this much power all the time it is on, and will really effect run times.
MPPT – If the sytem has a MPPT charge controller it will increase the efficiency of your solar panels by up to 40%.  Without a MPPT charge controller you will need more solar power to produce the same results as one without.
Pure sine wave – You will want a generator with a pure sine wave inverter, otherwise appliances will use more power, and wear out quicker.
True Deep Cycle – Many batteries are not true deep cycle, and only allow you to discharge them to 50%.  This essentially reduces your battery capacity by half.  To pass this test, the Generator needs to be capable of a 100% depth of discharge (DOD) when needed.

Usefullness:
Portable panels – Some solar generators come with large roof mount solar panels.  These can save money, but are hard to move, and you will need to build or buy a stand to hold them up.
Charge Time – This is the time it takes to recharge your batteries from empty to full.  If you have some cloudy weather, it can drain your batteries, and when you get a sunny day, you want to be able to quickly charge them back up.  for this chart, we set this level at 10 hours.  This time will be determined by solar size, charge controller type, and battery size.
Run time – If you don’t have don’t have a large enough battery, or your generator is low efficiency, your generator will become useless during cloudy days.  We consider it a good run time if it will run a fridge for 48 hours without sun.

Run Time Comparison

Comparing how many hours our HomeGrid solar generators and competitors can run WITHOUT SUN.

  Lights
(10w LED)
Fan TV/PC Cooktop
Burner
Micro-
wave
Washing
Machine
Well Pump
1/2 hp
Freezer Fridge Gas
Furnace
Electric
Range
HomeGrid 3000
Standard

 
$2,949
                     
                     
                     
30 hrs 7.2 hrs 2.9 hrs 0.5 hrs 0.5 hrs 1.0 hrs 0.7 hrs 10 hrs 9.2 hrs 6.3 hrs NA
            (110V only)        
HomeGrid 3000
Extreme

 
$4,379
                     
                     
                     
150 hrs 35.3 hrs 14.3 hrs 2.5 hrs 2.5 hrs 4.9 hrs 3.3 hrs 50 hrs 46.2 hrs 31.6 hrs NA
            (110V only)        
HomeGrid 3000
Ultimate

 
$5,289
                     
                     
                     
185 hrs 43.5 hrs 17.6 hrs 3.1 hrs 3.1 hrs 6.1 hrs 4.1 hrs 61.7 hrs 56.9 hrs 38.9 hrs NA
            (110V only)        
                       
HomeGrid 5000 HD
Standard

 
$4,698
                     
                     
                     
36 hrs 10 hrs 4.2 hrs 0.7 hrs 0.7 hrs 1.5 hrs 1.0 hrs 13.8 hrs 12.9 hrs 9.0 hrs 0.2 hrs
                     
HomeGrid 5000 HD
Extreme

 
$5,749
                     
                     
                     
148 hrs 41.1 hrs 17.2 hrs 3.0 hrs 3.0 hrs 6.0 hrs 4.0 hrs 56.9 hrs 52.9 hrs 37.0 hrs 0.9 hrs
                     
HomeGrid 5000 HD
Ultimate

 
$7,789
                     
                     
                     
296 hrs 82.2 hrs 34.4 hrs 6.1 hrs 6.1 hrs 12 hrs 8.1 hrs 114 hrs 106 hrs 74.0 hrs 1.8 hrs
                     
  Lights
(10w LED)
Fan TV/PC Cooktop
Burner
Micro-
wave
Washing
Machine
Well Pump
1/2 hp
Freezer Fridge Gas
Furnace
Electric
Range
Goal Zero
Yeti

Price:
$2,000
                     
                     
                     
37.5 hrs 7.4 hrs 2.9 hrs 0.5 hrs NA NA NA 10.7 hrs 9.8 hrs 6.6 hrs NA
                     
Humless
1.2kwh

Price:
$2,724
                     
                     
                     
35.3 hrs 12.1 hrs 5.4 hrs 1.0 hrs NA NA NA 16.2 hrs 15.2 hrs 11.0 hrs NA
                     
Total Solar
Solar Max 6000

Price:
$6,986
                     
                     
                     
41.5 hrs 23.7 hrs 13.0 hrs 2.8 hrs 2.8 hrs 5.3 hrs 3.7 hrs 28.4 hrs 27.3 hrs 22.2 hrs 0.9