Complete Off-Grid Solar Power System

A complete, ready-to-install kit: 500 x 600W monocrystalline panels, three 100kW / 215kWh LiFePO4 off-grid storage cabinets (645kWh total), mounting and cabling. Powers up to 300kW of load and about 1440 kWh per day, with no connection to a utility grid.

300kW Max Load 645kWh Storage Up to 1440 kWh/day LiFePO4 768V TUV / IEC / CE

What a 300kW Solar System Includes

A complete kit, shipped ready to install from the supplied drawings

Item	Model / type	Description	Quantity
1. Solar Panel	Mono 600W (Longi)	Monocrystalline PV module	500 pieces or customized
2. Commercial Energy Storage System	100kW 768V off-grid	Off-grid solar energy storage cabinet, 215kWh each	3 units (645kWh total)
3. Mounting Support	Ground / slope roof / flat roof	Optional per site	500 sets or customized
4. Cables and others	6 mm2 PV cable, MC4, battery cable	PV cable, MC4 connectors and battery cable	Customized

Accessories are complete and the system installs directly from the supplied installation drawings; online guidance is available, and the configuration can be adjusted to your site.

System at a glance: suitable daily power consumption up to 1440 kWh; allowable maximum load power 300 kW; total battery capacity 645 kWh (three 215 kWh cabinets); PV array about 300 kW (500 x 600W).

What This 300kW Off-Grid Solar System Is

This is a complete 300kW off-grid solar power system, not a single unit. It combines a 300kW array of 500 monocrystalline 600W panels with three 100kW / 215kWh off-grid LiFePO4 storage cabinets, for 645kWh of total battery capacity. The panels generate by day, the three cabinets store the energy and turn it into stable three-phase power, and the system runs up to 300kW of load and around 1440 kWh of daily consumption with no utility grid. It ships with mounting and cabling and installs directly from the supplied drawings.

Output is 230 / 400 Vac, 50 Hz (IEC standard). Markets on 60 Hz or split-phase supply (for example the United States and parts of the Caribbean) would need a transformer and frequency adaptation, so they are not the primary fit.

Which Markets It Is Built For, and Why

Best fit: high-sun regions with a weak, unstable, or absent grid on 230/400V 50Hz

Sub-Saharan Africa

Nigeria, Ghana, Kenya and South Africa face frequent outages and load-shedding. Strong sun plus costly diesel makes a complete solar kit an immediate cost cut for factories and estates.

Southeast Asia and Pacific Islands

The Philippines and Indonesia have thousands of islands with no central grid. A complete system powers resorts, cold storage, and village microgrids year round.

Latin America

Mexico, Brazil, Chile and Peru have remote farms and mining camps far from transmission lines, where on-site solar generation beats hauling diesel.

Middle East and Australia

Desert worksites, remote lodges and outback stations get abundant sun but no grid, and run on the same 230/400V 50Hz standard.

The Common Thread

Wherever sunlight is plentiful and grid power is unreliable, late, or absent, this system replaces fuel and downtime with predictable, self-generated electricity.

Where It Fits, and Why

300kW off grid solar system for factory - replace with your photo

Factories and Industrial Sites

Carries a whole plant through daily outages, replacing diesel and protecting production lines from downtime.

300kW off grid solar for resort and hotel - replace with your photo

Resorts and Hotel Complexes

Keeps rooms, kitchens and water systems running silently around the clock, protecting bookings and food stock.

300kW solar for farm and agribusiness - replace with your photo

Farms and Agribusiness

Drives pumps, cold storage and packing lines through the day, protecting crops and produce from outage losses.

300kW solar for mining and construction camp - replace with your photo

Mining and Construction Camps

Powers camps, tools and offices where there is no grid, replacing rented generators and their daily fuel bill.

300kW solar microgrid for community - replace with your photo

Community Microgrids

Acts as the local grid for a village or estate, keeping lighting, refrigeration and connectivity on for everyone.

Cold Chain and Logistics

Holds refrigeration and warehouses online continuously, preventing spoilage when the grid drops out.

What Problems It Solves, and Why

No grid or unreliable grid

Where utility power is absent or fails daily, 645kWh of batteries and the off-grid inverters form a stand-alone power source, so operations no longer stop when the grid does.

High diesel fuel and maintenance cost

Generators burn fuel every running hour and need frequent service. Solar charging shifts most generation to a one-time install with near-zero fuel cost.

Slow, complex deployment

Panels, storage, mounting and cabling are matched and shipped together, and install from the supplied drawings, so there is no multi-vendor sourcing or guesswork on compatibility.

Noise, emissions and refueling

A LiFePO4 system is silent and emission-free on site, removing fuel deliveries to remote or sensitive locations.

How It Compares to the Alternatives

A complete 300kW kit vs a diesel generator vs self-sourced components

What you care about	This complete 300kW solar kit	300kW diesel generator	Self-sourced components
Fuel cost over time	Near zero after install	High and ongoing (about 215,000 USD/yr at full use)	Near zero (also solar)
Sizing and compatibility	Pre-matched and validated as one kit	Genset plus fuel storage only	You engineer panel, inverter and battery compatibility yourself
Installation	Installs from supplied drawings, online guidance	Straightforward to install, but fuel logistics ongoing	You coordinate drawings, wiring and commissioning
Noise and emissions	Silent, zero on-site emissions	Loud, fumes, vibration	Silent (also solar)
Warranty and support	One supplier, 25-year panel warranty, online guidance	Local diesel service network	Multiple vendors and separate warranties to manage
Best when	You want turnkey off-grid power delivered ready to install	You only need short-term or backup power	You have an in-house EPC team and want to pick brands

Versus large containerized BESS: branded grid-scale storage systems target big, grid-connected projects and cost considerably more. This kit is sized and priced for off-grid and weak-grid sites that want a complete, affordable system they can install themselves.

What Makes It Different

The advantage is not one exotic spec; it is that the whole system arrives matched, off-grid capable, and ready to install.

1. Complete, matched kit

Panels, three storage cabinets, mounting and cabling are supplied together and install from the drawings, removing multi-vendor sourcing and compatibility risk.

2. True off-grid

The storage cabinets are off-grid units that deliver stable 230/400 Vac three-phase power with no utility connection, ready for sites that have no grid at all.

3. 768V LiFePO4

High-voltage LiFePO4 means lower current for the same power, less wiring loss, and the safety and long life of lithium iron phosphate chemistry.

4. Modular 645kWh

Capacity is built from three 215kWh cabinets, so the bank can be scaled up or down to match the site instead of buying one fixed block.

What 300 kW and 645 kWh Can Run

The 300 kW maximum load sets how much you can run at the same time; the 645 kWh of batteries sets how long loads keep running after sunset; and the system suits a total daily consumption of up to about 1440 kWh. As a rule of thumb, 645 kWh runs a steady 27 kW load through the night, or carries a substantial site from dusk to the next morning before solar tops the batteries back up.

Equipment	Power	Hours/day	Energy/day
Production machinery and motors	80 kW	8	640 kWh
Air conditioning / process cooling	40 kW	10	400 kWh
Cold storage / refrigeration	15 kW	16	240 kWh
Lighting, office and pumps	12 kW	12	144 kWh
Peak about 147 kW at once	Total per day		about 1424 kWh

Even with machinery, cooling, cold storage and lighting all running together (about 147 kW), there is wide headroom under the 300 kW limit, and the daily total sits just under the 1440 kWh the system is sized for. Daytime loads run straight off the solar array while the batteries carry evening and overnight load.

Diesel vs Solar: The Savings Math

The example covers a site using the full envelope of about 1440 kWh per day, comparing a diesel generator against this 300kW solar system.

Cost item	Diesel generator	This 300kW solar system
Fuel per day (1440 kWh)	about 115 gallons = about 616 USD	0 USD
Fuel per year	about 215,000 USD	0 USD
Maintenance per year	about 15,000 USD	about 1,500 USD
Total operating cost per year	about 230,000 USD	about 1,500 USD
Effective cost per kWh	about 0.45 USD	about 0.10 USD
Indicative saving per year	-	about 215,000 USD

At roughly 215,000 USD saved per year on fuel alone, the system commonly returns its installed cost within a few years, after which power is close to free across the 25-year panel warranty and long LiFePO4 battery life, while diesel keeps burning cash every day.

Real Scenarios and the Problem Each One Solves

Factory - ends the diesel bill for a whole plant

Problem: a mid-size plant bridges 6 to 10 hours of daily outages on diesel, burning around 600 USD of fuel a day plus servicing and lost production. Solution: the 300kW array charges 645 kWh of batteries to carry roughly 1440 kWh a day across the plant. Value: on the order of 215,000 USD a year in fuel removed, with far less downtime.

Off-grid estate - skips the grid-extension bill

Problem: the nearest utility line is 3 miles away, and overhead extension runs about 40,000 to 80,000 USD per mile (underground 50,000 to 150,000), so well over 120,000 USD just to connect. Solution: the complete 300kW system powers the whole property from day one, no grid required. Value: the entire connection cost is avoided and there is no monthly utility bill.

Island hotel complex - protects bookings and food stock

Problem: generator outages spoil refrigerated food, cut air conditioning to guest rooms, and trigger refunds, easily tens of thousands of USD over a peak weekend. Solution: 645 kWh of silent storage keeps rooms, kitchens and water systems running around the clock. Value: protected revenue, no diesel noise for guests, and lower fuel shipping to the island.

Agribusiness / packing plant - stops brownouts from killing machines

Problem: a weak grid delivers sags and brownouts that overheat motors, trip processing lines and shorten equipment life. Solution: the off-grid inverters supply clean, stable three-phase power across the site. Value: pumps, chillers and packing lines run uninterrupted, with fewer burned-out motors and lower replacement spend each year.

Figures above are illustrative examples for planning only; actual savings depend on load profile, fuel price, sun hours and local tariff.

Technical Specifications

300kW System Overview
System Type	Complete off-grid solar power system
Suitable Daily Power Consumption	Up to 1440 kWh
Allowable Maximum Load Power	300 kW
Total Battery Capacity	645 kWh (3 x 215 kWh)
PV Array	About 300 kW (500 x 600W modules)

Solar Panel (per module, 500 pieces)
Max Power	600 W
Solar Cell	Monocrystalline
Max Power Current (Imp)	13.90 A
Output Tolerance	+/-3%
Max Power Voltage (Vmp)	39.18 V
Open Circuit Voltage (Voc)	47.40 V
Short Circuit Current (Isc)	14.01 A
Temperature Coefficient of Isc	0.05% per deg C
Frame	Aluminum alloy frame
Temperature Range	-40 deg C to +85 deg C
Product Dimension	2115 x 1052 x 40 mm
Weight	20.5 kg
Certificates	TUV, IEC, CE
Warranty	25 Years

Storage Cabinet (per unit, 3 cabinets total)
Rated Power	100,000 W
Model	HC300k-215kWh-02B
Battery Chemistry	LiFePO4
Total Capacity	215 kWh
Nominal Capacity	280 Ah
Nominal Voltage	768 V
Operating Voltage Range	650 V to 864 V
Max Charging Current	140 A
Max Discharge Current	140 A
Operating RH	10% to 90%
Working Altitude	Below 3000 m
Dimensions (L x W x H)	1460 x 1400 x 2203 mm
Rated Output Power	105 kW
Max AC Current	167 A
Max DC Power	126 kW for 1 Min
Rated Operating Voltage	230 / 400 Vac
Approved Grid Frequency Range	50 Hz +/-5 Hz
Voltage Deviation	Below 5%, linear load, phase below 3

PV Combiner
PV Array Input Numbers	6
Max Single PV Array Current	10 A
Single PV Array Fuse	10 A
Output Numbers	1
Max Output Current	40 A
Reference Weight (N.W / G.W)	5.3 / 9.3 kg
Machine Size (D x W x H)	340 x 300 x 140 mm
Packaging Size (D x W x H)	450 x 420 x 245 mm
Ground Wire Size	6 mm2 or larger

PV Cables
Rated Voltage	DC 1.8 kV; AC U0/U 0.6 / 1 kV
Cross Section	4 mm2
Color	Red / Black
Application	Solar panel, inverter, combiner box, PV power station
Rated Current	55 A
Conductor Structure (No. / mm)	Copper wire, 56 / 0.3
Conductor Stranded Outside Diameter	2.58 mm
Test Voltage	6.5 kV / 5 min, no breakdown
Operating Voltage AC / DC	0.6 to 1.0 / 1.8 kV
Conductor Resistance (20 deg C)	4.75 ohm/km or less
Max Operating Temperature	120 deg C
Working Environment Temperature	-40 to +90 deg C

300kW Solar System Battery Pack

Our newly introduced 300kW three-phase hybrid solar-plus-storage system is a robust, industrial-grade solar solution designed for large commercial buildings, manufacturing plants, island resorts, and agricultural projects. This system is capable of generating power independently—operating entirely off-grid—and ensures continuous, uninterrupted power supply around the clock. Are you still plagued by frequent power outages? Are you concerned about soaring electricity bills? Consider exploring this solar power system; it offers a definitive solution to these challenges.
The system features a high-efficiency monocrystalline silicon solar array, a 300kW/380V three-phase hybrid inverter, and a high-capacity Lithium Iron Phosphate (LiFePO4) battery bank. It has been specifically optimized for the high-temperature, high-humidity, and coastal climatic conditions typical of tropical regions; all components are engineered to industrial-grade standards—featuring anti-corrosion and rain-proof designs—to ensure long-term, stable operation in outdoor environments.

What does a 300 kW solar system include?

Item	Model	Description	Quantity
1	Solar Panel	Mono 600W Longji	500 pieces or Customized
2	Commercial Energy Storage System	100kw 768v off grid solar Energy storage system	3PCS
4	Mounting Support	Ground or Slope roof or Flat roof optional	500 sets or Customized
5	Cables and others	6mm2 PV cable 200M	Customized
		MC4 terminal connectors
		battery cable

Note: The 300kw solar system accessories are complete and can be installed directly according to the installation drawings. Online guidance can also be provided. If you have additional ideas, you can communicate at any time.

300KW OFF GRID SOLAR POWER SYSTEM

Suitable for daily power consumption : <1440KWH

Allowable max loads power : 300KW

Battery capacity : 645KWH

Solar Energy System Certificate

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 - Rated power	100000W
Solar Inverter - Model	HC300k-215kWh-02B
Solar Inverter - Battery chemistry	LiFePO4@GF
Solar Inverter - Total Capacity	215kWh
Solar Inverter - Nominal Capacity	280Ah
Solar Inverter - Nominal voltape	768V
Solar Inverter - OperatingVoltage Range	650V-864V
Solar Inverter - Max Charging Current	140A
Solar Inverter - Max Discharge Cument	140A
Solar Inverter - Operating RH	10%~90%
Solar Inverter - Working Altitude	<3000m
Solar Inverter - LWH	146014002203mm
Solar Inverter - Rated Output Power	105kW
Solar Inverter - Max AC Current	167A
Solar Inverter - Max DC Power	126kW/1 Min
Solar Inverter - Rated Operating Voltage	230/400Vac
Solar Inverter - Approved Grid Fregvency Range	50Hz±5Hz
Solar Inverter - Voltape Deviation	< 5% Linear load Phase <3
PV combiner-PV array input numbers	6
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

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