--- title: "Easun Power 11KW TWIN Solar Inverter/Charger Off-grid Inverter: Specs & Datasheet | ComparePV" description: "Easun Power 11KW TWIN Solar Inverter/Charger 11 kW off-grid inverter. Specs: 2 MPPT, 500 V max DC input, 18.4 kg." source: "https://comparepv.com/inverter/easun-power-11kw-twin-solar-inverter-charger" updated: 2026-01-19 --- # Easun Power 11KW TWIN Solar Inverter/Charger ## Identity - **Manufacturer:** Easun Power - **Model:** 11KW TWIN Solar Inverter/Charger - **Series:** TWIN Solar Inverter/Charger - **Rated AC power:** 11 kW - **Type:** Off-grid - **Phases:** Single-phase - **Battery port:** yes ## How it compares Compared against 266 inverters from 6 to 12 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | - | 97.6% | | | | MPPT trackers | 2 | 2 | Typical | 46 | | Max DC input voltage | 500 V | 1000 V | Weak - bottom 7% | 218 | | Weight per kW | 1.7 | 2.3 | Strong - top 17% | 46 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 11 kW - **Max apparent power:** 11.00 kVA - **Phases:** Single-phase - **Nominal AC voltage:** 230 V - **Max AC current:** 60.0 A - **Grid frequency:** 50 Hz - **Harmonic distortion (THD):** 5.0 % ### PV input - **Max DC input power:** 11.00 kW - **Max DC voltage:** 500 V - **MPPT voltage range:** 90 to 450 V - **Start-up voltage:** 80 V - **MPPT trackers:** 2 - **Max input current per MPPT:** 27.0 A - **Max short-circuit current per MPPT:** 40.0 A ### Efficiency - **Max efficiency:** 93.0 % ### Battery - **Battery port:** Yes - **Battery voltage:** 48 V nominal (lead-acid voltage setpoints 42.0-63.0 V depending on settings/battery type) - **Max charge current:** 150.0 A - **Max discharge current:** 228.0 A - **Backup power:** 11.00 kW - **Grid-forming:** Yes ### Physical - **Dimensions:** 554 × 432 × 147 mm - **Weight:** 18.4 kg - **Cooling:** forced-air - **Operating temperature:** -10 to 50 °C - **Max humidity:** 95 % ### Connectivity and protection - **Interfaces:** Wi-Fi, Display - **Protocols:** Wi-Fi (WatchPower / WatchPower Wi-Fi app), RS-232, USB (OTG + USB comms), CAN-BUS (BMS), RS-485 (BMS), RS-232 (BMS) ### Warranty and certificates - **Certifications:** CE ### Pros - **Two independent MPPT (Maximum Power Point Tracking) systems** - The TWIN series features two independent MPPT controllers (with 11-12 kW models providing up to 150 A per string), allowing for the use of PV strings with different orientations and inclines without interference - a significant advantage over inverters with a single MPPT, especially on typical pitched roofs. - **BMS Communication: CAN / RS485 / RS232** - The TWIN series devices support native communication with popular LiFePO4 battery packs (Pylontech, JK BMS, Jikong, Daly), eliminating the need for additional adapters and enabling precise charging management - which is crucial when building a battery storage system. - **Built-in Wi-Fi monitoring + app** - The built-in Wi-Fi module, with access to the mobile app, allows for remote monitoring of parameters in real-time without the need to purchase a separate data logger, which reduces the total installation cost by approximately 200-400 zł compared to systems that require an external module. - **Hybrid on/off-grid mode with UPS** - Hybrid on-grid/off-grid architecture with UPS functionality (switching time of less than 20 ms in most models of this class) provides power to sensitive devices (e.g., NAS, CO pump) during network outages - without the need to install a separate off-grid inverter. - **Scalability through parallel processing** - The models in the TWIN series support the connection of up to 6 units (single-phase or 3-phase), allowing for system expansion without replacing the inverter - a practical advantage for facilities with increasing power requirements. ### Cons - **Aside from the Tier 1 ranking by BNEF** - Easun Power is not listed on Bloomberg NEF's Tier-1 inverter list (unlike Growatt, Sungrow, SMA, and Fronius). The brand is also recognized by some DIY solar communities as a rebranded version of the Voltronic/SRNE platform, which suggests limited transparency in its own R&D and potentially a shorter firmware support cycle. - **Documented issues with post-sales support** - On Trustpilot and the DIY Solar Power Forum, users report difficulties in contacting customer service, a lack of response to email complaints, and delayed deliveries. Growatt, a direct competitor in the same price segment, consistently receives higher ratings for its after-sales service in independent installer rankings (Clean Energy Reviews 2025). - **Limited database of certificates for the EU market** - Publicly available resources lack a VDE-AR-N 4105 or G99 certificate specifically for the TWIN series (unlike SMA and Fronius, which hold these certificates for each model individually). This can complicate grid connection for some OSDs in Poland or Germany. ## About this series Hybrid Inverter/Charger Easun Power TWIN Solar - designed for installations where flexible energy management and reliable backup power are essential. In practice, this enables seamless switching between solar panels, the grid, and energy storage systems, emphasizing self-consumption and powering loads even during grid outages. Key features include **two independent MPPTs**, simplifying operation with panels of different orientations or under partial shading conditions - boosting energy yield without complicating the design. High **European efficiency** translates to better energy production in typical weather conditions in Poland, not just under ideal sunny conditions. Additionally, features like **WiFi monitoring** (often with additional communication ports for integration), an easy-to-use menu, and an event log simplify diagnostics. The series is **compatible with energy storage systems** (including BMS communication in certain versions), complemented by comprehensive safety features and manufacturer guarantees. A smart choice for homes, small businesses, and facilities requiring backup power. ## Questions ### Why use two independent MPPT controllers in the Easun Power TWIN solar inverter/charger series? Two independent MPPT (Maximum Power Point Tracking) controllers allow you to connect two separate arrays of panels operating under different conditions - for example, a southern and eastern array, or an area partially shaded by a chimney. Each MPPT controller independently determines its own maximum power point, so a weaker array does not negatively impact the performance of a stronger one. In practice, this results in higher daily energy yield without the need to use optimizers. ### Does the Easun Power TWIN inverter function during a power outage and provide emergency power? Yes, the TWIN series is a hybrid on-grid/off-grid system with a built-in UPS function. In the event of a power outage, the inverter automatically switches the powered circuits to energy from the stored batteries and current photovoltaic production. The switching time is short enough that most household appliances, including computers and refrigerators, do not lose power. This is an important feature for homes and small businesses that are vulnerable to power outages. ### Which energy storage systems and batteries does the Easun Power TWIN Solar Inverter/Charger work with? The TWIN series supports both traditional lead-acid batteries and modern lithium iron phosphate (LiFePO4) batteries. Certain versions are equipped with BMS communication via RS485 or CAN, enabling integration with popular energy storage systems, including Pylontech and batteries from manufacturers using the JK/Daly protocol. Before purchasing a battery, it is advisable to confirm its compatibility with a specific TWIN model, as the list of compatible BMS systems varies depending on the firmware version. ### How can I monitor the real-time performance of the Easun Power TWIN inverter remotely via the internet? The TWIN series features a built-in Wi-Fi module that, when connected to your home's wireless network, allows you to remotely monitor operating parameters via a mobile app or web interface. This includes information such as the current PV power output, battery status, energy flows, and event history. It also includes communication ports (RS485) that enable integration with external energy management or building monitoring systems. ### What is the warranty for the Easun Power TWIN Solar Inverter/Charger series, and what does it cover? Easun Power provides a standard 12-month manufacturer's warranty on the TWIN series, starting from the date of purchase, covering manufacturing defects and proper device operation when used according to the specified instructions. Some authorized distributors in Poland may offer extended warranties or local service - it's worth checking this before purchasing. The warranty does not cover mechanical damage, external surges, or issues resulting from improper installation. ### Does the Easun Power TWIN series perform well in the Polish climate and with varying cloud cover? Yes, the TWIN series is optimized for high efficiency in European conditions, rather than just peak efficiency in laboratory settings. This means that the inverter effectively converts energy even under low sunlight conditions, which are common in Poland during spring and autumn. The dual-track MPPT further reduces losses due to uneven panel illumination. The device operates within a wide range of ambient temperatures, typical for the central European climate. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/SMW-11KW-Off-grid-manual-ed9191978408.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Easun Power ISolar SMW 11KW](https://comparepv.com/inverter/easun-power-isolar-smw-11kw) | 11 kW | | | 18.4 kg | Similar on paper | | [PowMr POW-HVM10.2M](https://comparepv.com/inverter/powmr-pow-hvm10-2m) | 10.2 kW | | | 14.5 kg | -0.8 kW, 3.9 kg lighter | | [Growatt SPF 10000T DVM](https://comparepv.com/inverter/growatt-spf-10000t-dvm) | 10 kW | | | 66.0 kg | -1.0 kW, 47.6 kg heavier | | [Growatt SPF 12000T DVM](https://comparepv.com/inverter/growatt-spf-12000t-dvm) | 12 kW | | | 75.0 kg | +1.0 kW, 56.6 kg heavier | | [Growatt SPF 10000T DVM-MPV](https://comparepv.com/inverter/growatt-spf-10000t-dvm-mpv) | 10 kW | | | 66.0 kg | -1.0 kW, 47.6 kg heavier | | [Growatt SPF 12000T DVM-MPV](https://comparepv.com/inverter/growatt-spf-12000t-dvm-mpv) | 12 kW | | | 75.0 kg | +1.0 kW, 56.6 kg heavier | | [PowMr POW-SunSmart 10K](https://comparepv.com/inverter/powmr-pow-sunsmart-10k) | 10 kW | | | 27.0 kg | -1.0 kW, 8.6 kg heavier | | [PowMr POW-SunSmart LV12K](https://comparepv.com/inverter/powmr-pow-sunsmart-lv12k) | 12 kW | | | 45.0 kg | +1.0 kW, 26.6 kg heavier | --- Source: https://comparepv.com/inverter/easun-power-11kw-twin-solar-inverter-charger