Official Sourcing Channels
We supply 100% genuine on-grid inverters sourced directly from leading manufacturers, backed by full original factory warranties.
On-grid Inverters for Residential Rooftops, Commercial Rooftops, and C&I Solar Projects
Use R5, R6, and C6 series when the project needs high yield, stable grid export, and clean monitoring handoff.
Choose by site size, AC output target, and monitoring requirement. Sunriver helps buyers move from application match to datasheet review and quote.
Which On-grid Inverter Fits the Site and Output Target?
We provide a curated portfolio of on-grid inverters, each engineered to deliver specific outcomes for your clients. Explore how you can achieve these results for residential, commercial, and industrial applications.
For Residential Projects, Balancing Performance with Homeowner Comfort
Target:
Premium Residential & Small Commercial
Power:
0.7kW – 12kW
Features:
Quiet (<29dB), High Efficiency (98.6%)
How It’s Delivered: R5 Series offers high efficiency and ultra-quiet operation for home applications.
Target:
Premium Residential & Small Commercial (Single/Three Phase)
Power Range:
0.7kW – 12kW
Key Features:
Quiet (<29dB), High Reliability, User-Friendly eSolar App Monitoring, Efficiencies up to 98.6%.
How It’s Delivered:
Our R5 Series is engineered for this. Its high efficiency (up to 98.6%) and ultra-quiet (<29dB) fanless design make it the ideal choice for home applications.
Need Help Comparing R5, R6, and C6?
Let's skip the deep dive. Provide a few project details, and our team can quickly recommend the best series and provide a preliminary quote.
Where On-grid Inverters Make Sense
The on-grid inverters we supply are the heart of any grid-tied solar system. They perform a critical, multi-step process to seamlessly convert the sun's energy into usable power for your property.
1. Harnessing Solar Energy
It all starts with your PV panels capturing sunlight and converting it into DC (Direct Current) electricity, the raw fuel for your system.
2. Intelligent DC to AC Conversion
The inverter then performs its core magic: converting that raw DC power into high-quality AC (Alternating Current) power, precisely matching your local grid's voltage and frequency.
3. Prioritizing Your Power Needs
This grid-perfect AC power is instantly sent to power your home or business first, directly reducing the amount of electricity you need to purchase.
4. Seamless Grid Export
When you generate more power than you consume, the surplus energy is safely and seamlessly exported to the utility grid, ensuring every drop of sunshine is utilized.
Why Buyers Choose This On-grid Portfolio
We have carefully selected a range of on-grid inverters that excel in three key areas critical for project success: performance, usability, and long-term reliability.
Maximum Power for Faster ROI
The inverters we offer achieve industry-leading efficiency (up to 99%) and use advanced MPPT algorithms to maximize your energy yield, accelerating your project's return on investment.
Up to 99% Max Efficiency
Advanced MPPT Algorithm
High Power Yield
Faster Project ROI
Flexible Installation and Easy Management
Adapt to any site with a wide power range and models featuring up to 12 MPPTs. All systems can be remotely monitored and managed via an intuitive platform.
Wide Power Range
Multiple MPPT Inputs
Intuitive Remote Platform
Quick Commissioning
Built for Durability and Lasting Safety
Expect long-term, reliable operation thanks to robust components, comprehensive protections (Type II SPD, optional AFCI), and high protection ratings (IP65/IP66) for harsh conditions.
Robust Componentry
Integrated Type II SPD
Optional AFCI Protection
IP65/IP66 Weatherproof
Core Specs of On-grid Inverters
R5 Series Single Phase - R5-5K-S2-15
DC Input & PV Array Compatibility
Max. PV Array Power
7500 Wp
Allows flexible solar array oversizing for optimal yield.
MPPT Voltage Range
90-550 V
Wide range adapts to various string designs easily.
Max. DC Input Current
15 A
Suits modern high-current PV modules effectively.
AC Output & Grid Connection
Nominal AC Output Power
5000 W
Delivers stable 5kW for typical residential needs.
Nominal AC Voltage/Range
220/230/240V
Compatible with global single-phase grid standards.
Max. Efficiency
97.8%
High conversion rate for greater energy harvest.
Physical & Operational Data
Protection Degree
IP65
Durable design for reliable outdoor installation.
Weight
18 kg
Compact and lightweight for easy handling and setup.
Noise Emission
<29 dB
Quiet operation, ideal for residential environments.
On-grid Inverter Showcase
Explore our range of high-efficiency on-grid inverters through these detailed video overviews and technical demonstrations.
5:42
Inversor solar para tejado SAJ R5 para energía solar inteligente
Advanced rooftop solar solution with intelligent energy management
3:28
Presentamos el inversor solar de la serie R5 para instalaciones en tejado conectadas a la red
Next-generation on-grid solar inverter technology
8:15
Tutoriales de instalación del inversor solar de la serie R6 de SAJ
Step-by-step installation guide for R6 series inverters
6:33
InterSolar 2022: SAJ Latest Smart Energy Solutions
Discover our innovative smart energy solutions showcase
12:47
SAJ C6 Series Commercial Solar Inverter Installation
Professional installation guide for commercial applications
Beyond the Inverter: The Value of Sourcing On-grid Systems with Sunriver Electric
Choosing the right on-grid inverter is critical. Ensuring you source it through a reliable, professional supplier is just as important. Discover the key advantages of working with Sunriver Electric for your grid-tied project needs.
Simplified Global Sourcing
Our expert team simplifies complex international trade processes for on-grid systems, ensuring a hassle-free procurement experience.
Clear, Actionable Data
Access accurate, up-to-date specifications and grid compliance details for all the on-grid inverters in our curated portfolio.
Complete On-grid Range
From single-phase residential to high-power three-phase industrial, access a complete lineup of On-grid Inverters (R5, R6, C6) through us.
Responsive, Professional Service
Our dedicated team provides prompt support for your on-grid product inquiries and orders, guaranteeing responses within 1 business day.
Focused On-grid Expertise
With 5+ years specializing in PV technology, we understand the specific technical and commercial nuances of on-grid solar projects.
Client Testimonial
"Sourcing reliable inverters internationally was always a challenge until we started working with Sunriver Electric. They provide access to high-performance SAJ on-grid inverters and, crucially, manage the entire procurement process with exceptional professionalism. Their clear communication and dependable logistics have made them our go-to supplier.
"
Andrew Jiafu T
Associate Director of Global Sales at Cerametronics
Proven in the Field: On-grid Projects Supplied by Sunriver Electric
High-performance technology proves its value in real-world applications. Explore how the on-grid inverters we supply have become a trusted component in diverse projects.
Powering a High-Demand Industrial Facility in Poland
Industrial Plant, Poland
The Challenge:
An EPC in Poland needed a robust 500kW solution for an industrial rooftop with complex orientations, requiring maximum energy harvest and absolute reliability to power manufacturing operations.
Sunriver's Solution:
We supplied 4 SAJ C6-125K-T12 inverters, recommended for their 12 MPPTs and high efficiency. We ensured timely delivery and provided complete technical documentation for smooth grid connection.
The Result:
The system consistently achieves a high Performance Ratio (>85%), providing the client with significant energy cost savings and a predictable, high-yield solar asset.
Ensuring Reliable Energy for a Spanish Residential Community
Residential Community, Spain
The Challenge:
A Spanish developer needed a cost-effective inverter solution for a new community of over 30 homes, requiring consistent performance and easy remote management.
Sunriver's Solution:
We supplied 20 SAJ R6-20K-T2-32 inverters, ideal for multi-home projects. Our streamlined procurement process allowed the developer to receive all units in a single, coordinated shipment.
The Result:
All homes were successfully powered, with the system showcasing >98% uptime. The developer praised the reliability and ease of managing the entire portfolio via the eSolar platform.
Meeting Strict Compliance for a German Commercial Rooftop
Commercial Facility, Germany
The Challenge:
A German logistics company wanted to reduce its carbon footprint and high energy costs. Their installer needed a high-yield 250kW system that would meet stringent German certification standards.
Sunriver's Solution:
We supplied 4 SAJ C6-100K-T9 inverters and provided all necessary TÜV and VDE compliance certificates upfront, which significantly simplified the grid approval process for the installer.
The Result:
The system consistently exceeds energy production targets, achieving an impressive 98.7% average inverter efficiency and an estimated annual CO2 reduction of 180 tons.
On-grid inverter documents
Resources
Datasheets and manuals for R5, R6, and C6 on-grid inverter families, organized for project specification and procurement review.
4 files
R5 Series (Rooftop Inverter)
4 files
R6 Series (Advanced Rooftop Inverter)
2 files
C6 Series (Commercial Inverter)
Buyer questions
FAQs
Short technical answers for sizing, documentation review, and buyer qualification on grid-tied inverter projects.
2 questions
Capacity selection
Sizing questions buyers usually ask before comparing R5, R6, and C6 models.
How do I select the right on-grid inverter capacity for my project?
Choose inverter capacity by matching the approved AC export limit, PV string design, and expected site load profile rather than by panel wattage alone.
What to confirm before model selection
- Grid approval: Start with the utility-approved AC capacity and any export-limitation rule.
- DC/AC ratio: Use the PV layout and irradiance profile to decide whether oversizing is sensible for yield.
- Phase type: Single-phase residential roofs and three-phase commercial roofs usually need different model families.
Expert Sourcing Tip
For a quotation, send the target AC power, module model, string count, grid phase, and installation country so the engineering team can narrow the model list without over-specifying.
What technical details are most important when comparing different on-grid inverter models?
The most useful comparison points are AC rated power, MPPT count, input current, grid-code support, protection features, and monitoring interface.
Comparison criteria that matter in procurement
- PV compatibility: Check MPPT voltage window and current rating against the proposed module.
- Grid behavior: Confirm reactive power, export control, and local grid-code functions before submission.
- Serviceability: Review monitoring access, alarm visibility, and replacement documentation.
Expert Sourcing Tip
Ask for the datasheet and user manual together; the datasheet helps shortlist models, while the manual exposes wiring, protection, and commissioning details.
3 questions
Warranty & sourcing
Commercial questions that affect distributor, EPC, and importer decision-making.
How does Sunriver Electric guarantee the quality and warranty of the inverters?
Sunriver supports inverter quality review through model documentation, pre-shipment checks, and warranty terms confirmed during the quotation process.
What buyers should request
- Model documentation: Use the correct datasheet and manual for the exact power range being ordered.
- Order traceability: Keep serial, batch, and shipment records aligned with the purchase order.
- Warranty language: Confirm coverage period, claim workflow, and regional service expectations before payment.
Expert Sourcing Tip
Do not rely on a catalogue screenshot for warranty review; ask for the warranty terms tied to the exact model, destination market, and order quantity.
What makes the international sourcing process smoother with Sunriver Electric?
The process is smoother when technical selection, document review, and shipping requirements are handled before the purchase order is finalized.
Practical sourcing sequence
- Define the project: Share capacity, grid phase, country, and expected application.
- Lock documents: Confirm datasheets, manuals, and any compliance files needed by the buyer or customs broker.
- Align logistics: Set packaging, destination port, and delivery documentation requirements early.
Expert Sourcing Tip
Send one consolidated request instead of separate messages for price, manual, and logistics; it reduces back-and-forth and prevents mismatched model references.
What information is needed for an accurate project quote?
An accurate quote needs model range, quantity, grid phase, destination country, required documents, and any monitoring or export-control accessories.
Quote checklist
- Project basics: Target AC power, PV module type, and installation use case.
- Commercial basics: Quantity, destination, timeline, and preferred trade terms.
- Documentation needs: Datasheets, manuals, compliance documents, or tender forms required by the buyer.
Expert Sourcing Tip
If the project is still early-stage, ask for a model shortlist rather than a final quote; it keeps the discussion useful without forcing premature commercial assumptions.
1 questions
Monitorización remota
Monitoring requirements for O&M teams, installers, and fleet managers.
Do the on-grid inverters you supply offer remote monitoring?
Yes, Sunriver-supplied on-grid inverter projects can be paired with monitoring accessories for remote status visibility and O&M review.
Monitoring points to confirm
- Connection method: Confirm whether Wi-Fi, LAN, or cellular communication is preferred for the site.
- User roles: Define whether the installer, distributor, or end customer needs access.
- Data needs: Clarify whether basic production monitoring is enough or whether export control and fleet-level review are required.
Expert Sourcing Tip
For multi-site buyers, specify account hierarchy and installer access needs before ordering loggers; monitoring design is easier before hardware is shipped.
Explore Our Other Solar Products
Gestiona de forma inteligente la energía solar, de las baterías y de la red eléctrica con los inversores híbridos SAJ H1 / H2. Cuentan con modos inteligentes para un almacenamiento y un uso óptimos de la energía.
H1
H2
Serie H2 LV
Consigue un control total del consumo energético de tu hogar con los sistemas de almacenamiento «todo en uno» SAJ HS2/HS3/CHS2. Batería integrada, gestión inteligente y preparados para suministro de energía de reserva.
HS2
HS3
Serie CHS2
Mejora el control y la supervisión del sistema con SAJ Data Collector y eManager. Optimiza el rendimiento y obtén información más detallada sobre la energía solar de forma sencilla.
Recopilador de datos
eManager