This off grid solar power system kit provides nearly everything you need to bring 1.44kW of off-grid solar power and storage to a tiny house off the grid. Choose your preferred battery type and solar panel mounting option, and you're on your way!
Need to customize this kit or need help installing it? Call us at 800-919-2400...We're ready to help!
The inverter/charger at the heart of this system is a Samlex EVO-2224, capable of delivering 2.2kW continuously over 120-volt pure sine wave AC output. As a 24V battery bank charger, the EVO-2224 offers adaptive 3- or 4-stage charging with equalization. And with two programmable AC inputs, a generator can easily be added to this system. Working in tandem with the EVO-2224 is a FLEXmax 60 MPPT Charge Controller from OutBack Power, which provides up to 60 amps of 5-stage battery charging from your solar panels.
The answer starts with knowing how much power you need on a daily basis in kilowatt-hours (our load calculator can help with this; divide the number it gives you in Watt-hours by 1000 to get kilowatt-hours, or kWh).
Compare your daily kWh needs to the map here, which shows the amount of monthly kWh this system's solar panels will produce if installed at an optimal tilt during the time of year when there's the least amount of sun. If your needs exceed the solar potential shown for your area on the map, check out our larger off-grid solar power system kits.
If this 1.44 kW Tiny House Solar Power System is appropriately sized for your needs, then it's time to consider which battery storage and solar panel mounting options you want to use with it. The tables below compare each of these options.
| Battery Type | KiloVault 2100 PLC Advanced AGM Battery | KiloVault HLX+ Lithium Battery |
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| # of Batteries in Kit (Necessary cables also included) |
(4) KiloVault PLC 2100 Advanced AGM Batteries 5' pair 2/0 battery-to-inverter cables 8" 2/0 battery interconnect cable - black 8" 2/0 battery interconnect cable - red |
(2) KiloVault 2400 HLX+ 12V Lithium Batteries 5' pair 2/0 battery-to-inverter cables 13" 2/0 battery interconnect cable - black 13" 2/0 battery interconnect cable - red |
| Maintenance (Watering) | No | No |
| Maximum Recommended Depth of Discharge (DoD) | 50% | 80% |
| # Cycles at Max Recommended DoD | 3000 | 5000 |
| Battery Voltage | 12V | 12V |
| Battery Amp-Hours (C/20 Charge Rate) | 180 Ah | 200 Ah |
| Battery Watt-Hours (C/20 Charge Rate) | 2160 Wh | 2400 Wh |
| Total Battery Bank Capacity (C/20) | 8.64 kWh | 4.8 kWh |
| Maximum Useable Capacity at Max DoD |
4.32 kWh | 3.84 kWh |
| Average Cost/kWh Cycle* | $.15 | $.16 |
| Average Lifespan | 8 Years | 13 Years |
| Operating Temperature Range | -20° to 45°C | 0° to 45°C |
| Weight per Battery | 127 lbs | 60 lbs |
| Warranty | 5 Years | 7.5 Years |
| Country of Origin | China | China |
| Pros | Advanced Pure Lead Carbon technology improves charge / discharge. Avg cost up front. Maintenance-free. |
Maintenance-free. Modular and lightweight. Safe, non-toxic, and environmentally benign. No cooling or ventilation needed. Lowest lifetime cost. |
| Cons | Replacement costs (~3X over life of solar system). | Highest up front cost. |
*Average Cost/kWh Cycle = (Avg Price Battery/(# Cycles x DoD X Wh)) x 1000
| Mounting Type | Metal Roof Mount Option | Shingle Roof Mount Option | Top of Pole Mount Option |
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| Kit Includes | IronRidge XR1000 7' Rails, clamps, S-5 Versa Bracket clamps | IronRidge XR1000 7' Rails, clamps, and flashing | MT Solar 4 Module Mount, IronRidge XR100 7' Rails, mid clamps (need to add end clamps to order). Does not include schedule 40 steel pipe or mechanical tubing needed for the substructure. |
| Weight Tolerance | Up to 90 PSF | Up to 90 PSF | Up to 30 PSF |
The exact solar panels used in your kit may depend on what's available to us and what's best suited to your needs.
