Sunchees Customer Installation Feedback and Comments

Power Your Business and Home with a One-Stop Clean Energy Solution

The Sunchees 50kW off-grid Solar System is designed for factories, shops, villas, farms, and more, covering both commercial and residential energy needs. Delivering approximately 70,000 kWh annually, it significantly reduces electricity bills while ensuring reliable power even during outages. With installations in over 200 countries and regions, Sunchees provides global expertise backed by end-to-end service and robust technical support.

This is an off-grid solar power system designed for self-sufficiency. It powers household or commercial loads directly from solar panels and batteries. The grid connection is used only as a backup to charge the batteries when solar power is insufficient.

Unlike a hybrid system, it does not export excess energy back to the grid as it lacks grid-tied functionality and bi-directional inverters. In the industry, this setup is often referred to as “Off-Grid with Grid Backup”.

Why Choose the Sunchees 50kW Off-Grid with Grid Backup Solar System?

Core Advantage	Details
Save on Electricity	Generates around 70,000 kWh per year, dramatically reducing grid dependency.
Hybrid Application	Supports on-grid, off-grid, and hybrid operations with seamless backup power.
Flexible Installation	Suitable for ground, flat roof, and sloped roof setups, adapting to diverse environments.
Comprehensive After-Sales	Full-service support: design, manufacturing, shipping, installation, and remote tech assistance.
Proven Global Experience	Successful projects in 200+ countries, trusted for commercial and residential energy solutions.

What Is Included With The Solar Kits!

1 X 50000W 360Vdc 220/380Vac Inverter
80 X 600 Watt Monocrystalline Solar Panels
1 X 360V/300AH Lifepo4 Battery
2 X MPPT charge controller
1 X PC10-360V PV combiner
80 X Sets of Mounting Brackets
1 X 6mm2 PV cable 200M，MC4 terminal connectors
2 X 25mm2*1M battery cable

**50kw IGBT Solar Inverter**

This is our 15 kW solar inverter, paired with our 384 Wh lithium battery. It’s designed for versatile applications and can be used in schools, hotels, and other facilities.
Rated power	50000w
Model	TI50K
Phase	3 phase 4 wire and ground
intput Frequency Range	45 – 65HZ
Pv voltage rande:	500~800VDC
Output	220V/380V
Charger efficiency	90%-95%
Product size	*12009001820 mm*

Why choose our inverter?

LiFePO4 lithium battery
Mode	LPBS360VDC200
Rated Voltage	358.4V
Capacity	71680WH
Lifespan	8-10 years
Cycle Life	more than 6000 times
Initial Capacity	300Ah
Charge voltage	403.2V
Discharge Voltage Range	313.6V-397.6V
DOD	95%
Certifiction	TUV/CE
Battery pack dimensions	135010101780 (mm)

**SP600W mono solar panel**
Max power	600w
Solar Cell	Monocrystalline
Maximum Power Current (IMP)	14.3A
MaximumPowerVoltage(VMP)	43.32V
Open Circuit Voltage(VOC)	51.45V
Product Dimension	*2279 1134 30 mm*
Warranty	25Years
Certificates	TUV、IEC,CE

Installation Area Requirements

Each solar panel area: 2.3m²
Total area for 80 panels: ~184m²

Recommended area (including spacing for ventilation and maintenance): ~240m²

Tailored Solutions for Diverse Applications

Category	Dedicated Solutions

Commercial and Industrial	Reduce electricity costs and ensure uninterrupted operations for factories, offices.
High-End Residential	Achieve zero electricity bills and reliable power backup for villas and communities.
Agriculture and Remote Areas	Provide stable, off-grid power for farms, ranches, and remote facilities.

Typical Use Cases and Power Load Examples

Commercial and Industrial

Device Type	Power per Unit (kW)	Quantity	Total Power (kW)
Medium Industrial Equipment	5	6	30
Central Air Conditioning	3	4	12
Lighting System	0.1	50	5
Office Equipment	0.2	10	2
Total			49kW

Luxury Villas

Device Type	Power per Unit (kW)	Quantity	Total Power (kW)
Wall-Mounted Air Conditioners	1.5	10	15
Refrigerators/Freezers	0.8	5	4
Lighting System	0.05	50	2.5
Pool Pumps	2	2	4
Household Appliances	1	5	5
Total			30.5kW

Agriculture

Device Type	Power per Unit (kW)	Quantity	Total Power (kW)
Irrigation Pumps	3	4	12
Livestock Ventilation	1	10	10
Cold Storage Equipment	5	2	10
Lighting and Monitoring	0.1	50	5
Small Machinery	1	8	8
Total			45kW

Note: System supports peak loads up to 55–60kW (short-term). Nighttime load requires separate sizing based on battery capacity.

How Many Solar Panels Needed for 50kW? Full Guide →

How does the Off-Grid with Grid Backup system work:

This system not only has solar power system function,but also has city grid complement function and UPS function
At daytime,the solar panels will generate the electricity to charge the battery bank through solar charge controller and the inverter will convert battery DC power into AC power and take the loads.
At nighttime,with fully charged battery bank,the inverter will convert battery DC power into AC power and take the loads
When there is no sunshine and battery power is used out,the inverter will automatically switch to use city grid power and take the loads

Packing details:

Solar panels are packed in carton and pallet
PV combiners and inverter are packed in wooden box
Solar charge controller,gel battery,and cables are packed in carton
Solar panel racks are in cartons and bulk packing

Global Project Case Studies

Country	Project Scale	Application	Result
Jamaica	50kW Hybrid System	Commercial Office Building	Saved over 30% electricity annually, benefited from government incentives
Nigeria	100kW Off-Grid System	Factories and Warehouses	Replaced diesel generators, cut 50% operational costs
Costa Rica, Guyana	30–200kW Systems	Farms and Villas	Delivered stable power, enhanced property value

100kw Solar system Nigeria case:

Company profile

Sunchees was founded in 2008, head office and factory is located in Foshan, Guangdong. China,but its sales network has spread to more than 100 countries and regions around the world.

Company profile

Main business: solar power system one stop solutions, solar inverter , solar air conditioner system, solar street light system . solar DC power system ect .

Company profile

Sunchees products are widely used in home, agriculture, industry, finance, electric power, transportation, security, new energy. Its stable and excellent performance have been widely recognized.

Company profile

Warranty policy:

Solar panel has 10 years warranty,during warranty if any quality problem,we will ship new one for replacement.
lithium battery has 3 years warranty,during warranty if any quality problem,we will ship new one for replacement.Quality problem means acid leakage or irregular shape.
Inverter,charge controller,and PV combiner have 2 years warranty,during warranty if any quality problem,we will ship free PCB for replacement

International Certifications and Service Guarantee

Certified with CE, IEC, UL, and more
Successful projects in 200+ countries
25-year warranty for solar modules, 5–10 years for inverters, 10 years for batteries
Full support from design to installation, including remote technical assistance and video guides

Sunchees operates a 1,000 km² manufacturing facility, develops in-house inverters and lithium batteries for 100% system compatibility and lower failure rates, and offers OEM customization including branded solar panels and tailored solar systems with air conditioning solutions.

sunchees certification

Government Incentives and Policy Support

Country/Region	Policy Type	Benefits
Jamaica	Net Billing Program	Sell surplus electricity back to the grid
	DBJ Low-Interest Loans	Reduce upfront installation cost
Nigeria	Import Duty Exemption	Zero import tariffs on PV equipment
	Energy Subsidies	Available for commercial and residential users
Caribbean Countries	Tax Incentives	Government tax benefits for green projects

15Kw Lithium Battery Price In Nigeria

Parameter Name	Parameter Value
Solar Panel - Max power	600W
Solar Panel - Solar Cell	Monocrystalline
Solar Panel - Maximum Power Current (IMP)	13.90A
Solar Panel - Output Tolerance	±3%
Solar Panel - MaximumPowerVoltage(VMP)	39.18V
Solar Panel - Open Circuit Voltage(VOC)	47.40V
Solar Panel - Short Circuit Current(ISC）	14.01A
Solar Panel - Temperate coefficient of Isc	0.05%/℃
Solar Panel - Frame	Aluminum alloy frame
Solar Panel - Temperature range	－40℃～ +85℃
Solar Panel - Product Dimension	2115 * 1052 *40 mm
Solar Panel - Weight	20.5 kg
Solar Panel - Certificates	TUV、IEC,CE
Solar Panel - Warranty	25Years
Solar Inverter - Output Wave form	Pure sine wave
Solar Inverter - Input Phase	3 phase 4 wire and ground
Solar Inverter - Input Voltage Range	380V±20%(3 phase), phase voltage 220V
Solar Inverter - Input Rectifier	3 phase 6 pulses, 12 pulses is optional
Solar Inverter - Output Rated Voltage	380/400/415V optional+ -1% for static load
Solar Inverter - Power	50000W
Solar Inverter - Nominal Voltage	380vac ±1% (Stable Load)
Solar Inverter - Battery DC Voltage	360V
Solar Inverter - Max Input Current	6-30A adjustable
Solar Inverter - Product size	12009001820
Solar Inverter - Product weight(Kg)	690
LiFePO4 Lithium Battery - Model	LPBS360VDC300
LiFePO4 Lithium Battery - Capacity	360V108KWH
LiFePO4 Lithium Battery - Voltage	360V
LiFePO4 Lithium Battery - Charge Voltage	403.2V
LiFePO4 Lithium Battery - Discharge Voltage Range	313.6V-397.6V
LiFePO4 Lithium Battery - Max charge& Discharge Current	150A
LiFePO4 Lithium Battery - DOD	174V-216V
LiFePO4 Lithium Battery - Operating Temperature	4°F to 140°F
LiFePO4 Lithium Battery - Cycle Life	≥6000
LiFePO4 Lithium Battery - Size	135010101780
LiFePO4 Lithium Battery - Lifespan	8-10 years
LiFePO4 Lithium Battery - Weight	700kg
PV combiner-PV array input numbers	4
PV combiner-Max single PV array current	10A
PV combiner-Single PV array fuse	10A
PV combiner-Output numbers	1
PV combiner-Max output current	40A
PV combiner-Reference weight (N.W/G.W)	5.3/9.3
PV combiner-Machine size (D X W X H)	340300140mm
PV combiner-Packaging size (D X W X H)	450420245mm
PV combiner-Ground wire size	≥6mm2
PV Cables - Rated Voltage	DC:1.8kv ACU./U:0.6/1kv
PV Cables -Cross Section	4mm2
PV Cables -Color	Red /Black
PV Cables -Application	Solar panel, inverter, combiner box, PV power station
PV Cables -Rated current	55A
PV Cables -Number of cores	NO
PV Cables -conductor	copper wire structure NO./mm 56 /0.3
PV Cables -Conductor stranded outside diameter	2.58mm
PV Cables -Test voltage kV / min	6.5/5 No breakdown
PV Cables -Operating voltage AC / DC (KV)	0.6 ~ 1.0/1.8
PV Cables -conductor resistance (20 °C)	40~+90°C
PV Cables -Conductor	≤4.75Ω / km
PV Cables -Maximum operating temperature	120 ℃
PV Cables -Working environment temperature °C	-40 ~ +90

*Name

*Bussiness/organization

*Whatsapp

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*Industry

Preferred Method of contact

Best time to Reach You

*Applications

*Do you have existing solar power system ?

*How Much is Your Monthly Electricity Bill?

*Installation place

*Which product are your intersted in ?(Multiple options available)

Off Grid Solar System On Grid Solar system wind Solar Hybrid system Three phase solar system Off grid Microgrid BESS Solar air conditioner Single phase solar system Lithium battery split-phase solar system

*Estimated solar system installation time

March or june or December this year or next year

*What is you occupation / position?