Why is the off-grid solar kit so popular now?
If you are considering installing a set of off grid solar kits for your home, holiday cottage, farm, camp or remote house, then you are definitely not alone.
In the past few years, the attention of global consumers to off-grid solar systems has increased significantly. Behind this is not the "sudden explosion of environmental protection awareness", but a very realistic reason:
1. Electricity prices continue to rise, doubling the pressure on families.
In many countries, household electricity prices have risen by 30-80% in the past three years. Especially the electricity price during peak hours, which makes people feel that "using electricity is like burning money".
2. Frequent power outages in remote areas and areas with weak power grids
Including:
The holiday wooden house has no electricity for a long time.
Electricity is difficult for farms and pastures.
Power outages are common in winter snowstorm areas.
There are even hours of power outages in developing countries every day.
3. More and more people choose "energy independence"
People who live in the countryside, mountainous areas, islands and off-network camps prefer:
Don't rely on the national power grid
Don't be afraid of power outages.
If you want to use electricity, you can have electricity at any time.
4. Off-network kits are getting cheaper and cheaper.
With the decline in the cost of photovoltaics, the price of a complete off-grid solar packages is even cheaper than installing two air conditioners.
What is the off-grid solar suite?
When many people hear "off grid solar kit" for the first time, they will think it is a "directly usable" portable device, but in fact it is an "independent power supply system" composed of multiple core components.
A standard all-in-one off-grid solar solution usually includes:
1 .Solar Panels
Responsible for converting sunlight into electrical energy.
The higher the power → the more power generation.
Recommendation: single crystal panel (more efficient)
2 .Off-grid Inverter
Convert the direct current (DC) of the battery into household alternating current (AC).
This part must not be bought too cheaply, because it directly affects:
Can you drive home appliances?
System stability
Can it switch automatically?
Can more panels be expanded?
If you need a high-quality inverter, you can refer to:
Power off-grid solar inverter (supports lithium-electric communication)
3. Battery (Battery Storage) - the core of the system
Most recommended: LiFePO4 (lithium iron phosphate battery)
The reason is that it has a longer life, is safer and has more cycles.
The battery determines how long you can use it at night and how many days it can last on rainy days.
4. Install brackets, cables, connector accessories
It is used for fixing, parallel connection and serial connection to build a complete system.
5. Optional: generator, WiFi module, automatic switching controller ATS
Some people will choose to add a generator as a backup to ensure that the power supply continues on rainy days.
Why can't I buy a kit that is too cheap?
Because cheap kits usually exist:
Panel power false label
Inverter has low efficiency/can't bring home appliances
Insufficient battery capacity and short life
No BMS protection (there is a security risk)
If you want to use it for a long time, be sure to choose a suite that can be expanded, upgraded and has stable quality.
How much power do you need?
Many users don't know whether they need a 1kW, 3kW or a 5kW kit. The following table can help you make a quick judgment:
Off-grid solar kit scenario recommendation form
| Scenario | Recommended Kit | Can Power |
| Occasionally-used holiday cabin | 1–2 kW | Lights, phones, small fridge, Wi-Fi |
| Small apartment / tiny house | 3 kW | Fridge, water pump, daily appliances |
| Full-time residence | 5 kW+ | Fridge, washing machine, water-heater (partial), some A/C |
| Farm / ranch / construction site | 5–10 kW | Water pumps, power tools, small machinery |
How to calculate the requirements by yourself?
1 Daily power generation (kWh) calculation formula:
Daily power generation = panel power × sunshine hours
For example:
1.2kW panel × 5 hours of sunshine = 6 kWh/day
2 Calculation formula for battery usable capacity (kWh):
Available power = battery capacity × DOD (discharge depth)
The discharge depth of LiFePO4 can reach 80–90%.
For example:
5kWh battery × 0.85 = 4.25 kWh available
Residential vs Holiday Cottage: Which configuration should you choose?
Residential system (long-term residence)
Characteristics:
High demand for stable power supply
Must support refrigerators, pumps and other key loads
Sometimes you also need to bring air conditioning.
Suggested configuration:
3kW–5kW inverter
5~10kWh battery
Support the extension panel
Pure sine wave output
Residential users are very concerned about the life of the system, so LiFePO4 batteries are basically standard.
Holiday cottage system (short-term use)
Characteristics:
Low demand for electricity
More are lighting, electronic equipment and small-power household appliances.
Need an easy-to-install, mobile and lightweight kit
Suitable for:
1–3kW kit
Easy-to-install plug-and-play off-grid solar kit
Movable folding panel
Compared with the residential system, resort cottage users are more flexible.
Off-grid kit price range
| Kit Power | Approx. Price Range | Typical Users |
| 1 kW | US $300 – $600 | Cabin, camping, light use |
| 3 kW | US $1,000 – $2,500 | Small/compact homes |
| 5 kW | US $3,000 – $6,000 | Larger homes, farms, full-time living |
The key to the price difference is: batteries!
80% of the cost comes from the battery capacity.
The bigger the battery, the longer it can last.
Is the kit easy to install? Can it be DIY?
Suitable for DIY:
1–2kW small system
Modular design
No high-voltage operation
No complicated wiring requirements
Welcome to view the detailed steps for building a DIY off-grid system：Complete Off Grid Solar Panel Systems: Components, Costs, and Setup Tips
Situations where DIY is not recommended:
More than 3kW power
There are water pumps, motors and high-power loads.
Grounding and overload protection system is required
There is a need for parallel machines.
Precautions for installation
Waterproof, dustproof and ventilated
The terminal must be pressed tightly.
MPPT parameters should be set correctly.
The inverter and battery cable must choose a thick wire diameter.
The best off-grid solar kit for cabins and outdoor sheds - LZY Energy residential core kit
In order to ensure the stable, long-lived and safe operation of your system, LZY Energy provides a variety of energy storage battery selection schemes, which are configured according to capacity, use and budget.
Solar panels
6 pieces of LZY Energy 425W all-black monocrystalline silicon components
High conversion efficiency, simple appearance, and all-black design are more suitable for residential and cabin roofs. The components have passed strict weather resistance tests and can maintain stable power generation in low-light and high snow pressure environments.
Inverter
LZY Energy hj series 4000W 24V pure sine wave inverter/charger
The output power is cleaner and more stable, which can safely drive sensitive electronic products such as computers, refrigerators and network devices.
Charging controller
LZY MPPT high-efficiency solar charging controller
Real-time tracking of light, maximizing photovoltaic output, and improving charging efficiency and energy storage utilization rate.
Battery configuration options
You can choose different energy storage methods according to the daily power consumption:
5.12kwh/10.24kwh lithium battery
(90% discharge depth)
15.36kwh rack lithium battery
(90% discharge depth)
Attached accessories
Circuit breaker
2 surge protectors
A full set of cables and joints
Metal roof, tile roof, rod-type installation accessories are optional
Why do you recommend this system?
LZY Energy has been focusing on off-line and small-scale energy systems for a long time. With professional technical support and stable quality, it has a good reputation among user groups.
✔ Efficient and beautiful all-black components
LZY monocrystalline silicon components are equipped with:
High power output
Wind and snow-resistant structure
Long life and high reliability
Suitable for a variety of outdoor environments
The high-standard production process ensures the consistent performance of each component.
✔ Pure sine wave power supply, stronger compatibility of household appliances
Applicable to:
Laptop
Router
TV
Refrigerator
Pump motor load
✔ Multiple installation methods, flexibly adapt to the site
You can choose:
Installation of metal roof
Tile roof installation
Rod-type installation
The kit provides the required accessories, reducing additional costs and easier installation.
How to quickly choose the most suitable off-network suite for you?
Summarize it into three key points:
1 Clarify your daily electricity needs
You can refer to the calculation method in this article.
2 The budget should match the battery capacity.
The larger the battery, the longer it can be used.
3 Choose the brand instead of "cheap"
A real off-line system needs to be stable, safe and scalable.
If you are still not sure how to choose and need configuration suggestions, please feel free to contact us.
Contact us to get a quotation (support customized solutions)
We can plan the most suitable off-grid solar system for you according to your house area, electricity consumption habits and budget.