GoodWe – ES G2 Series Single Phase Hybrid Inverter – 3 kW to 6 kW

The GoodWe ES Uniq Series is a single-phase hybrid solar inverter line engineered for residential photovoltaic (PV) installations. It supports both on-grid and off-grid operation, enabling storage, self-consumption and backup-power capabilities in one unit. The “3000 kW – 6000 kW” variant designation reflects typical models in the 3 kW to 6 kW range (though the full series spans 3 kW to 12 kW) designed for homes and small commercial-residential setups.In the Tanzanian market context—where grid stability, backup power, solar self-consumption and energy independence are increasingly important—the ES Uniq series offers a versatile solution for homeowners, small guest-houses, lodges, or commercial premises with solar + battery + grid integration needs.

Features & Benefits

• Hybrid Functionality: Integrates PV input, battery storage and grid connection in a single unit. Enables switching between on-grid, off-grid and backup modes.
• Flexible Battery Compatibility: Compatible with a variety of battery types (lithium-ion, lead-acid) and especially designed to work with GoodWe’s own Lynx A and Lynx U battery systems.
• Parallel & Expandable: Because it supports multiple units in parallel, users can start small (e.g., 3 kW) and scale up as demand grows (for example adding more capacity for guest rooms, EV chargers, etc).
• Fast Backup Switching: With <4 ms switchover, the system can deliver uninterrupted power to critical loads (lights, refrigerators, communications) when the grid goes down. Especially valuable in Tanzania where power interruptions are common.
• High PV Oversizing Capacity: Allows the PV array to be oversize up to 200% of the inverter’s rated power (depending on model) so that even in lower solar-irradiance periods you can maximise harvest.
• Smart Monitoring & User Interface: Equipped with a touch-screen LCD display for local monitoring, and includes connectivity for app/remote monitoring via WiFi/LAN. Ensures homeowners or installers can track performance, battery state, and system health.
• Robust Safety & Environment Ratings: Optional AFCI (Arc Fault Circuit Interrupter) protection, IP66 rating, anti-islanding, surge protection, etc. Suitable for outdoor installation or harsher environments.

Use Cases

• Residential Homes with Solar + Battery + Grid Backup: A homeowner in Dar es Salaam, Arusha or other region can install a PV system sized to their rooftop and pair this inverter with a battery bank. During the day solar powers the house and charges the battery; at night or during grid outages the stored battery power can supply the house.
• Small Guest-Houses / Lodges / Eco-Tourism Sites: Many lodges in rural Tanzania face weak grid or no grid. The ES Uniq hybrid can operate in off-grid or weak-grid mode (micro-grid) and support multiple inverters in parallel for larger loads (kitchen, guest rooms, lighting).
• Commercial-Light Applications / Shops / Offices: Small commercial units needing reliable power can use the device to reduce grid dependency, optimise self-consumption and ensure backup during outages.
• Tier-Outlying Areas / Weak Grid Zones: Regions with unstable power or frequent blackouts will benefit from the rapid backup switching and strong environmental protection (IP66) of this inverter, making it reliable even in coastal/humid or remote settings.

Value Propositions

• Energy Independence & Reliability: Given Tanzania’s intermittent grid in many areas, the ES Uniq offers a pathway to reliable power, reducing reliance on diesel generators, lowering fuel cost and maintenance.
• Cost-Saving & Solar Optimisation: By enabling PV oversizing and maximising self-consumption (use more of your solar output rather than exporting to grid), homeowners/businesses can reduce their electricity bills.
• Scalable Investment: Start with a modest system and expand later (via parallel inverters) without replacing the main hardware – useful in growing markets or where financial investment is phased.
• Adapted to Harsh Conditions: With IP66 and high-temperature range capabilities, it suits hot/humid/coastal Tanzanian environments.
• Backup Guarantee: The near-instant backup switching ensures critical loads remain powered (lights, fridge, communications) which is a strong selling point in outage-prone zones.
• Local Installer & Service-Friendly: Being a well-known brand (GoodWe) with global footprint, parts and service support is more likely—important for Tanzanian customers who require long-term assurance.

Local Market Positioning in Tanzania

• Grid Instability & Outages: Many areas face load-shedding, voltage fluctuations or outages. A hybrid inverter with storage and fast backup switching is a strong proposition for homes and small businesses.
• High Solar Resource: Tanzania receives abundant sun; the oversizing capability means homes can take full advantage of solar and reduce dependence on the grid or expensive diesel generators.
• Growth of Residential Solar: As solar-+-battery uptake grows, a hybrid inverter that supports storage is more attractive than simple on-grid string inverters.
• Installer Ecosystem: Emphasise compatibility with local battery brands or existing lead-acid banks, to lower entry cost. The GoodWe brand and its global reputation can help installers sell confidence.
• Cost vs Value: While the purchase cost may be higher than basic inverters, the value comes from energy independence, backup capability, and future scalability — this should be clearly communicated.
• Regulatory & Import Considerations: Ensure local installers highlight availability of service/parts, warranty support, and compatibility with Tanzanian grid standards (230 V single phase, 50 Hz) — which this inverter supports.
• Marketing Messaging: Position the inverter as a “smart hybrid solution for homes that want solar now + battery backup + possibility to expand later” rather than simply “solar inverter”. Emphasise the reliability, self-consumption and backup benefits for Tanzanian consumers.

Technical Specification