--- title: "SolarEdge SE25K Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "SolarEdge SE25K 25 kW grid-tie inverter. Specs: 98.0% European efficiency, 1000 V max DC input, 32.0 kg." source: "https://comparepv.com/inverter/solaredge-se25k" updated: 2026-01-16 --- # SolarEdge SE25K ## Identity - **Manufacturer:** SolarEdge - **Model:** SE25K - **Series:** SolarEdge Three Phase Commercial - **Rated AC power:** 25 kW - **Type:** Grid-tie - **Phases:** Three-phase ## How it compares Compared against 227 inverters from 12 to 30 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 98.0% | 98.0% | Typical | 77 | | MPPT trackers | - | 2 | | | | Max DC input voltage | 1000 V | 1000 V | Typical | 101 | | Weight per kW | 1.3 | 1.6 | Typical | 71 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 25 kW - **Max apparent power:** 25.00 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 400 V - **Max AC current:** 36.2 A - **Grid frequency:** 50 Hz - **Power factor:** ±0.2 to 1 - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC input power:** 43.75 kW - **Max DC voltage:** 1000 V - **MPPT voltage range:** 680 to 1000 V ### Efficiency - **European efficiency:** 98.0 % - **Max efficiency:** 98.3 % ### Physical - **Dimensions:** 550 × 317 × 273 mm - **Weight:** 32.0 kg - **Enclosure:** IP65 - **Cooling:** forced-air - **Noise:** 62 dB - **Operating temperature:** -40 to 60 °C ### Connectivity and protection - **Interfaces:** Wi-Fi, Ethernet - **Protocols:** RS485, Ethernet, Wi‑Fi (optional), Cellular (optional) - **Protection:** AFCI, Surge protection ### Warranty and certificates - **Certifications:** IEC 62109, AS 3100, VDE-AR-N-4105, VDE-AR-N-4110 (not applicable for SE20K), AS 4777, EN 50438, CEI-021, VDE 0126-1-1, CEI-016, EN 50549-1, EN 50549-2, TOR Erzeuger Typ A, G99, G99 (NI), VFR 2019, IEC 61000-6-2, IEC 61000-6-3 Class A, IEC 61000-3-11, IEC 61000-3-12, RoHS ### Pros - **98.3% EU Efficiency** - The Three Phase Commercial series achieves a weighted EU efficiency of 98.3%, which more accurately reflects real-world operating conditions than peak efficiency figures. By comparison, the SMA Sunny Tripower reaches 98.0-98.2% and the Fronius Symo Gen24 up to 98.4%, placing SolarEdge at the top tier of the commercial inverter segment. - **Module-Level Power Optimization** - The DC-optimized architecture, using power optimizers such as the P370 and P500, eliminates the weakest-link effect inherent to string topologies. SolarEdge internal studies and independent third-party tests report energy yield gains of 5-25% in systems affected by partial shading or mixed panel orientations, compared to conventional string inverters without optimization. - **SafeDC - Standards-Certified Safety** - SafeDC technology reduces DC voltage to a safe touch level (below 1 V) within a maximum of 5 minutes following grid disconnection or inverter shutdown. The feature is certified to IEC/EN 60947-1, IEC/EN 60947-3, and VDE AR 2100-712, simplifying commissioning inspections and satisfying fire department requirements for commercial installations. - **Module-Level Monitoring** - The SolarEdge monitoring platform enables real-time, per-panel production tracking, accelerating fault diagnostics and reducing O&M costs. In the commercial segment, this is a significant advantage over standard string inverters from SMA and ABB, which provide monitoring at the string level only. - **Arc Fault Circuit Interrupter (AFCI)** - The built-in Arc Fault Detection function operates across string lengths of up to 400 m, automatically disconnecting the system upon arc detection. It meets NEC 2017+ requirements and applicable European standards, making it particularly relevant for installations in public-use buildings and industrial facilities. ### Cons - **Mandatory Power Optimizers Drive Higher CAPEX** - SolarEdge requires a power optimizer at every module (approximately $45-$108 per unit as of 2025), increasing total installed cost by 20-35% compared to equivalent string inverter systems from SMA or Fronius. For a 100 kWp system with approximately 230 panels, this translates to an additional expenditure of roughly 40,000-80,000 PLN on optimizers alone. - **Long-Term Risk - Manufacturer Financial Stability** - Between 2024 and 2025, SolarEdge conducted four rounds of layoffs totaling approximately 2,200 employees (a headcount reduction of over 37%), shut down its energy storage division, and saw its share price decline more than 95% from its 2022 peak. Given the standard 12-year warranty on commercial inverters (extendable to 20 years for an additional fee), the manufacturer's precarious financial position represents a tangible risk to long-term fulfillment of warranty obligations. - **Standard Warranty Limited to 12 Years** - The base warranty on three-phase commercial inverters is 12 years, while Fronius offers 5 years extendable to 20 years at a comparable price point, and the SMA Sunny Tripower comes with a standard 5-year warranty extendable to 25 years. Achieving 20-year coverage with SolarEdge requires purchasing a paid warranty extension. ## About this series SolarEdge Three Phase Commercial inverters are designed for small and medium-sized commercial installations - from factory and office rooftops to carports and public utility buildings. What distinguishes them is their **DC-optimized architecture with power optimizers**, which transfers maximum power point tracking to the module level, while the inverter operates with a stable DC voltage. In practice, this provides greater design flexibility and better energy production during shading or mixed roof orientations - even though the inverter typically has a single MPPT stage, **optimization occurs at the panels**. Real performance is achieved through high **European efficiency**, which better reflects operating conditions in Poland compared to laboratory parameters. The series supports **module-level monitoring** on the SolarEdge platform, with wired and wireless communication options depending on the configuration (e.g., Ethernet, WiFi modules). Integrated safety features, such as SafeDC and arc detection, facilitate installations. This solution is for companies seeking control, diagnostics, and reliability for years to come. ## Questions ### What is the warranty on SolarEdge Three Phase Commercial inverters? SolarEdge Three Phase Commercial series inverters come with a standard manufacturer warranty of 12 years, extendable to 20 years. The accompanying SolarEdge power optimizers carry a separate 25-year warranty. This combination provides practical protection for the entire system throughout the majority of its operational lifetime, which is a compelling argument for commercial installation purchasers. ### Does the SolarEdge Three Phase Commercial inverter require a power optimizer on every panel? Yes, the SolarEdge DC-optimized architecture requires the installation of a power optimizer at each individual PV module. It is the optimizers that perform maximum power point tracking (MPPT) at the individual panel level, while the inverter itself operates at a fixed DC voltage. This solution is particularly advantageous in installations with partial shading, mixed roof orientations, or irregular panel layouts common on commercial rooftops. ### What efficiency do SolarEdge Three Phase Commercial inverters achieve under Polish operating conditions? The series achieves a weighted European efficiency of 98.3% to 99%, which accurately reflects real-world operating conditions in Poland, where the system frequently operates at partial load. The European efficiency rating is a more meaningful performance indicator than the peak efficiency figures stated in datasheets, as it accounts for the typical solar irradiance distribution found in a temperate climate. ### What is the SafeDC feature in SolarEdge inverters, and why does it matter during system commissioning and inspection? SafeDC is a built-in safety system that automatically reduces the DC-side voltage to a safe level of approximately 1 V when the inverter is disconnected from the grid or during a fault condition. This eliminates the risk of electric shock during service work and simplifies inspections by fire departments and building inspectors. Combined with arc fault detection, it satisfies the requirements of modern fire protection regulations applicable to commercial premises. ### How large a commercial installation is the SolarEdge Three Phase Commercial series suited for? The series covers models ranging from 12.5 kW to 27.6 kW in the standard range, and with Synergy technology units can be scaled to 66.6 kW, 90 kW, or even 120 kW. The inverters are designed for small and medium-sized commercial facilities, including warehouses, office buildings, carports, and public-use buildings. Support for DC oversizing up to 175% gives installers flexibility when designing string configurations. ### What does monitoring look like for a system built around SolarEdge Three Phase Commercial inverters? The system enables module-level monitoring via the SolarEdge monitoring platform. Data is transmitted from the power optimizers through the inverter to the cloud, where it is accessible through a web portal and mobile application. Communication is supported either over a wired Ethernet connection or wirelessly via optional communication modules. Both the system owner and the installer have visibility into real-time production, operational history, and diagnostic alerts for each individual panel. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/se-three-phase-inverter-with-setapp-configuration-datasheet-4d34b02cddb9.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Growatt MID 25KTL3-X2 (Pro.E)](https://comparepv.com/inverter/growatt-mid-25ktl3-x2-pro-e) | 25 kW | 98.6% | 3 | 24.0 kg | +0.6 pp efficiency, 8.0 kg lighter | | [Growatt MID 25KTL3-X](https://comparepv.com/inverter/growatt-mid-25ktl3-x) | 25 kW | 98.6% | 2 | 23.0 kg | +0.6 pp efficiency, 9.0 kg lighter | | [Growatt MID 25KTL3-X1](https://comparepv.com/inverter/growatt-mid-25ktl3-x1) | 25 kW | 98.5% | | 29.5 kg | +0.5 pp efficiency, 2.5 kg lighter | | [GoodWe GW25K-MT](https://comparepv.com/inverter/goodwe-gw25k-mt) | 25 kW | 98.4% | | 40.0 kg | +0.4 pp efficiency, 8.0 kg heavier | | [Fronius Verto 25.0 400](https://comparepv.com/inverter/fronius-international-fronius-verto-25-0-400) | 25 kW | 98.3% | 4 | 35.2 kg | +0.3 pp efficiency, 3.2 kg heavier | | [Sungrow SG25T-P2-CN](https://comparepv.com/inverter/sungrow-sg25t-p2-cn) | 25 kW | 98.3% | 2 | 19.0 kg | 13.0 kg lighter | | [Huawei SUN2000-25KTL-M5](https://comparepv.com/inverter/huawei-sun2000-25ktl-m5) | 25 kW | 98.2% | 2 | 21.0 kg | 11.0 kg lighter | | [SOFAR 25KTLX-G3](https://comparepv.com/inverter/sofar-solar-sofar-25ktlx-g3) | 25 kW | 98.2% | | 36.0 kg | 4.0 kg heavier | --- Source: https://comparepv.com/inverter/solaredge-se25k