What size inverter and battery do I need to beat load shedding?

For a typical South African home running lights, Wi-Fi, a TV and a fridge, a 3kW–5kW inverter paired with a 5kWh lithium battery covers essentials for several hours. Larger homes or those running geysers and pumps need an 8kW+ hybrid inverter and 10kWh or more of battery storage.

How much does a load shedding backup kit cost in South Africa?

Entry-level inverter-and-battery load shedding kits start from a few thousand rand, while complete hybrid solar systems with panels and lithium batteries range higher depending on capacity. Solar Power Space stocks options across budgets, with free shipping within South Africa on orders above R55,000 and all prices including VAT.

Do you deliver solar products across South Africa?

Yes. Solar Power Space delivers nationwide across all nine provinces from its base in Upington, Northern Cape. Orders above R55,000 qualify for free shipping within South Africa.

What is the difference between a hybrid and an off-grid solar inverter?

A hybrid inverter connects to the grid and batteries at once, charging from solar or Eskom and switching to battery during load shedding. An off-grid inverter runs entirely on solar and battery with no grid connection, suited to remote sites with no Eskom supply.

Sale!

Solis S5 25.0kW Triple MPPT 3-Phase Grid Tie Inverter

Name: Solis S5 25.0kW Triple MPPT 3-Phase Grid Tie Inverter
Price: 37255.00 ZAR
Availability: InStock

Original price was: R39 198,00.Current price is: R37 255,00.

Solis S5 25.0kW Triple MPPT 3-Phase Grid Tie Inverter

Key Benefits

High Power Performance: Handles up to 37.5kW DC input with strong 25kW AC rated output.
Triple MPPT Flexibility: Optimizes energy harvest even under partial shading.
Advanced Protection: Type-II surge protection (DC & AC), arc-fault, reverse-polarity, and more.
Durable & Weatherproof: IP65 design ensures long-lasting operation outdoors.
Certified & Trusted: SA: NRS 097 and COCT certified for South African grid compliance.
Quiet & Efficient: Operates at <30 dBA with natural convection cooling.

~ Please contact us for a final quote ~

~ Installation is not included ~

This product must be installed by a qualified electrician/technician. All installations must adhere to local wiring regulations and standards. Solar Power Space RSA will not be held liable for any product malfunctions as a result of incorrectly installed systems.

Description
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Description

S5-GCP25K Three Phase String Inverter – Reliable Power for Bigger Energy Needs

Solis S5 25.0kW Triple MPPT 3-Phase Grid Tie Inverter, At SOLAR POWER SPACE RSA, we provide premium solar solutions designed for performance, durability, and compliance. The S5-GCP25K Three Phase String Inverter is the ideal choice for residential estates, small industries, and commercial PV power plants that need reliable, high-capacity solar energy conversion. 25kW Solar Inverter Supplier Johannesburg & Gauteng, Cape Town & Western Cape COCT-Certified Inverters, Durban KwaZulu-Natal 25kW Commercial Solar Inverter,

This inverter delivers up to 98.5% efficiency, ensuring you maximize every ray of sunlight while keeping energy costs low. With triple MPPT inputs, advanced surge protection, and robust IP65 protection, it’s built to perform in South Africa’s toughest conditions. Northern Cape & Free State Solar Power Plant Inverters, Eastern Cape & Limpopo 25kW Estate Solar Solutions, S5-GCP25K 25kW Inverter Distributor Namibia & Botswana, Zimbabwe, Lesotho & Mozambique Commercial Solar Inverters, Global 25kW Three-Phase Inverter for PV Power Plants

Certified to SA: NRS 097 and COCT standards, this inverter gives you peace of mind that you’re investing in a system that is both safe and compliant.

Technical Specifications

Category	Unit	Information
Model	–	S5-GCP25K
Energy Source	–	PV
Max. DC Input Power	kW	37.5
Max. DC Input Voltage	V	1100
Rated Voltage	V	600
Start-up Voltage	V	180
MPPT Voltage Range	V	160–1000
Max. Input Current	A	32 / 32 / 32
MPPT Number / Max Input Strings	–	3 / 6
Rated Output Power	kW	25
Max. Apparent Output Power	kVA	27.5
Max. Output Power	kW	27.5
Rated Grid Voltage	V	3/N/PE, 220V / 380V, 230V / 400V
Rated Grid Frequency	Hz	50/60
Operation Phase	–	Three
Rated Grid Output Current	A	38.0 / 36.1
Max. Output Current	A	41.8
Power Factor	–	0.8 leading…0.8 lagging
THDi	–	<1.5%
Max. Efficiency	%	98.5
EU Efficiency	%	98.1
Protections	–	Reverse polarity, Short circuit, Over current, Over voltage, Insulation monitoring, Residual current, Anti-islanding, Temperature, Surge (DC Type II / AC Type II)
Dimensions	mm	647(W) × 629(H) × 252(D)
Weight	kg	37
Topology	–	Transformerless
Night Self-consumption	W	<1
Operating Temperature	°C	-25 ~ 60
Ingress Protection	–	IP65
Noise Emission	dBA	<30
Cooling Concept	–	Natural convection
Max. Operation Altitude	m	4000
Designed Lifetime	–	>20 years
Grid Connection Standard	–	EN50438, G59/3, AS4777, VDE0126-1-1, IEC61727
Relative Humidity	%	0–100
Safety/EMC Standard	–	IEC62109-1/-2, AS3100, EN61000-6-1, EN61000-6-3
Connections	–	DC: MC4, AC: Terminal connectors
Display	–	LCD
Communication	–	RS485, Optional: Wi-Fi, GPRS
Certifications	–	SA: NRS 097 Certified, COCT Certified

Important Notice:
All solar products, inverters, and related components must be installed by qualified personnel. Installations must comply with local wiring regulations and standards. SOLAR POWER SPACE RSA will not be held liable for malfunctions caused by incorrect installations.