GoodWe – DNS G3 Series Single Phase Grid Tie / PV Inverter – 3 kW to 6 kW

The GoodWe DNS G3 Series is a single-phase string inverter range (3 kW to 6 kW) designed primarily for residential rooftop solar systems. It supports 2 MPPT channels, allowing for flexible string layouts, and is engineered to deliver quiet, reliable, high-efficiency operation in demanding environments.For the Tanzanian market—where grid reliability, solar irradiance, ambient temperature and dust/humidity conditions are key considerations—this inverter brings relevant features and value propositions which we detail below.

Features & Benefits

• Optimized Energy Generation: The DNS G3 supports DC input oversizing up to 150% and delivers AC output overloading of up to 110%, allowing for greater yield from PV systems even during less optimal sunlight conditions. This ensures maximum return on investment for homeowners.
• High Efficiency & Smart Performance: With maximum efficiency exceeding 97.8%, this inverter minimizes energy loss. The inclusion of wide MPPT voltage range ensures consistent performance across various solar panel configurations.
• Silent & Compact Design: Engineered with a fanless cooling system, the inverter operates at below 25 dB, making it ideal for indoor or noise-sensitive environments. Its lightweight, compact form factor simplifies installation and saves valuable space.
• Enhanced Safety Protection: Equipped with Type II SPD (Surge Protection Device) on both AC and DC sides, and optional AFCI (Arc Fault Circuit Interrupter), the DNS G3 safeguards against electrical fires, surges, and lightning strikes — critical for regions with unstable power grids or harsh weather conditions like coastal Tanzania.
• Smart Monitoring & Connectivity: Integrated Wi-Fi and Bluetooth connectivity allows remote real-time monitoring through the GoodWe SEMS Portal or mobile app, enabling users to track performance and energy data conveniently.
• Reliable Build & Long-Term Warranty: Built with corrosion-resistant housing and robust internal components, the DNS G3 withstands extreme climates — from tropical humidity to high temperatures — ensuring long operational life. It comes with 5 to 10 years warranty, depending on configuration and distributor terms.

Use Cases

• Residential Rooftops: Ideal for single-family homes and villas.
• Small Commercial Properties: Suitable for shops, offices, and community facilities requiring stable single-phase solar power.
• Remote & Off-Grid Integration: When paired with compatible hybrid systems or batteries, it provides sustainable energy for rural installations.

Value Propositions

• Maximised energy yield & better ROI: The high efficiency (97.9 %) and oversizing capability (150% DC) mean more of your installed solar capacity is converted to usable electricity, which matters when solar resource is high (as in Tanzania) and you want to make savings quickly.
• Future flexibility: With dual MPPTs and generous DC input current, the inverter can support upgrades (more panels) or handle complex layouts (e.g., east + west facing roof) without needing a bigger, more expensive inverter.
• Durability & low maintenance: Fan-less design reduces maintenance needs (no moving parts), IP66 means weather-tightness, optional safety protections increase system lifetime and reliability in regions with unpredictable grid or weather events.
• Monitoring & control: The ability to monitor consumption and generation in real time helps homeowners optimise usage (e.g., shifting loads to solar hours) and can be a selling point in markets where awareness of smart energy is growing.
• Compact & aesthetic: For residential homes where space or appearance matters, the compact design and low noise assist in better installation outcomes.

Local Market Positioning in Tanzania

• Target segments: middle-to-upper-income homeowners with rooftop solar interest, small commercial/residential properties, solar installers and distributors looking for a reliable inverter brand.
• Competitive edge: Compared to generic low-cost inverters, the DNS G3 offers premium features (dual MPPT, IP66, high input current, monitoring, optional safety) at a competitive level. This positions it as “premium but cost-effective” for Tanzania.
• Installation considerations: In Tanzania, installers and buyers should emphasise: correct string sizing (match the DC oversizing intelligently), ensure proper surge protection given lightning/voltage instability, consider ambient temperature derating (though this model supports high temperature), ensure roof suitability and wiring quality (to make use of the 16 A per string rating).
• Support & warranty: It’s important for the local market to ensure there is local support/after-sales service or authorised distributor for GoodWe in East Africa, as well as clarity on warranty (often 10 years standard).
• Integration with net-metering / feed-in tariffs: For home systems feeding into the grid, the inverter supports export limiting and monitoring, helpful if Tanzania’s utilities require export control or if users want to self-consume maximally and export minimal surplus.

Technical Specification