STS
Residential On-Grid Inverters
3-6kW for residential rooftop and small solar installations.
Sunways Energy Solutions
Sunways Inverters & Energy Storage Solutions
Explore high-efficiency on-grid inverters, hybrid inverters and battery-storage solutions designed for residential, commercial and industrial solar projects.
Available through Grineu Solar for EPC companies, dealers, installers and system integrators across Gujarat.
Product Range
One Sunways Portfolio for Multiple Solar Applications
STS
STT
Commercial & Industrial Inverters
4-150kW for commercial buildings, industrial facilities and larger projects.
STH
Hybrid Inverters
3-33kW for solar systems requiring battery and backup integration.
STE
Battery Energy Storage
5.1-16.4kWh for residential and small commercial storage applications.
Residential On-Grid
Compact Power for Residential Solar
The Sunways STS series offers compact residential on-grid inverter options for small rooftop solar systems.
STS-3KTL-SE-SSTS-3.3KTL-SE-SSTS-3.6KTL-SE-SSTS-4KTL-SE-SSTS-4.6KTL-SE-SSTS-5KTL-SE-SSTS-6KTL-SE-S
- Max efficiency up to 98.1% and MPPT efficiency 99.9%
- IP66 protection degree and transformerless topology
- Integrated reverse-polarity, surge, residual-current, islanding and AC protection functions
- Natural-convection cooling with optional RS485/WiFi/GPRS/LAN communication
View STS Specifications
Rated output range: 3,000W to 6,000W
MPPT: 1 tracker on most models; 4kW model lists 1/1 trackers
Grid type: 220/230V, 50/60Hz
Cooling: Natural convection
Commercial & Industrial
Scalable Inverter Solutions up to 150kW
STT on-grid inverters cover commercial rooftops, industrial facilities and larger distributed solar projects.
STT 4-25kW
Compact C&I Range
Models from STT-4KTL to STT-25KTL for commercial rooftop and smaller C&I projects.
- MPPT
- 2 trackers
- Max efficiency
- Up to 98.6%
- Protection
- IP65
- Cooling
- Natural convection
STT 30-80kW
Mid-Capacity C&I Range
Models STT-30KTL, 36KTL, 40KTL, 50KTL-M, 60KTL-M and 80KTL for higher-capacity sites.
- MPPT
- 2 to 8 trackers by model
- Max efficiency
- Up to 98.8%
- Protection
- IP66
- Cooling
- Smart fan cooling
STT 100-150kW
Large Distributed Projects
Models STT-100KTL-SE through STT-150KTL-SE for industrial and high-capacity projects.
- MPPT
- 10 trackers
- Max efficiency
- 98.8%
- Protection
- IP66
- Cooling
- Smart fan cooling
View STT Model Ranges
STT catalogue model groups include 4/5/6/8/10/12/15/17/20/25kW, 30/36/40/50/60/80kW and 100/110/125/136/150kW ranges. Communication is listed as RS485/WiFi/GPRS/LAN optional.
Hybrid Power
Solar, Battery and Backup in One System
The STH hybrid range integrates PV input, battery connectivity, grid output and backup output for residential and commercial hybrid applications.
STH 3-8kW
Single-phase hybrid range with lithium battery with BMS / lead-acid support, CAN communication and IP66 protection.
STH 6-33kW
Three-phase hybrid range with CAN/RS485 battery communication, backup output and smart fan cooling.
Solar Panels
Hybrid Inverter
Battery
Grid / Backup Loads
Explore Hybrid Models
STH 3-8kW: STH-3KTL-S to STH-8KTL-S, 40-60V battery range, max efficiency 97.6%, MPPT efficiency 99.9%.
STH 6-33kW: STH-6KTL-HT to STH-33KTL-HT, 140-750V or 200-800V battery ranges by group, max efficiency up to 98.2%, UPS switching time under 10ms.
Energy Storage
Flexible Battery Storage for Modern Solar Systems
STE battery products support residential and small commercial energy-storage applications.
STE-MS5
5.1kWh nominal energy
- 4.6kWh usable energy
- 51.2V 100Ah LiFePO4
- CAN, RS485 communication
- IP21, wall mounted indoor installation
STE-MS10
10.2kWh nominal energy
- 9.2kWh usable energy
- 51.2V 200Ah LiFePO4
- CAN, RS485 communication
- IP21, wall mounted indoor installation
STE-NS16
16.4kWh nominal energy
- 14.8kWh usable energy
- 51.2V 320Ah LiFePO4
- CAN, RS485 communication
- IP21, free-stand indoor installation
View STE Battery Details
Catalogue values include round-trip efficiency of 97.5% or higher, natural cooling, operating temperature from -20C to 60C, cycle life above 6,000 cycles at 25C, recommended DOD 90% and 5-year warranty.
Why Choose Sunways
Technical Range with Practical Project Fit
High Conversion Efficiency
Catalogue-listed inverter ranges include high maximum efficiency and 99.9% MPPT efficiency across key series.
Wide Power Range
Series coverage spans residential on-grid, C&I on-grid, hybrid inverter and storage applications.
Integrated Safety Protection
Core protection functions are listed across inverter families, with additional optional functions by range.
Smart Monitoring & Communication
Catalogue options include communication support such as RS485, WiFi, GPRS, LAN, CAN or RS485 depending on product family.
Application Selector
Which Sunways Solution Fits Your Project?
Final inverter selection depends on system size, string design, voltage, phase requirements, battery configuration and project conditions.
Compare Products
Sunways Series at a Glance
| Series | Product Type | Power / Capacity Range | Typical Application | Key Capability |
|---|---|---|---|---|
| STS | On-Grid Inverter | 3-6kW | Residential | Compact residential grid-tied solution |
| STT | On-Grid Inverter | 4-150kW | Commercial / Industrial | Scalable high-capacity inverter range |
| STH | Hybrid Inverter | 3-33kW | Residential / Commercial Hybrid | PV, battery, grid and backup integration |
| STE | Battery Storage | 5.1-16.4kWh | Energy Storage | Lithium battery-storage options |
Technical Downloads
Catalogue and Product Data
The provided Sunways catalogue includes STS, STT, STH and STE product tables.
Grineu Support
Source Sunways Solutions Through Grineu
Get product selection support, availability guidance and B2B supply assistance for Sunways inverter and storage requirements across Gujarat.
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FAQ
Sunways Product Questions
Which Sunways inverter is suitable for residential rooftop solar?
The STS series is the residential on-grid range, covering approximately 3-6kW. Hybrid residential needs may fit the STH 3-8kW range depending on system design.
What is the difference between STS, STT and STH series?
STS is residential on-grid, STT is commercial and industrial on-grid, and STH is the hybrid inverter range with PV, battery, grid and backup integration.
Does Sunways offer hybrid inverters with battery backup?
Yes. The catalogue lists STH hybrid inverter ranges with battery input, grid output and backup output information.
Which Sunways series is suitable for commercial and industrial projects?
The STT series covers commercial and industrial on-grid applications from approximately 4kW to 150kW.
What battery capacities are available in the STE series?
The catalogue lists STE-MS5 at 5.1kWh, STE-MS10 at 10.2kWh and STE-NS16 at 16.4kWh nominal energy.
Can Grineu assist with model selection?
Yes. Grineu can support series-level selection and product details. Final model selection depends on project electrical design and site conditions.
Where can I download detailed Sunways specifications?
Use the Sunways Product Catalogue download on this page for detailed model tables and technical data.
Find the Right Sunways Solution
for Your Solar Project
Connect with Grineu Solar for product selection, technical details, availability and B2B supply support.