⚡ Quick Read
- What happened: SolarEdge has introduced the Nexis residential solution, featuring a multi-range hybrid inverter (8 kW to 20 kW) and a modular high-voltage battery system scalable up to 78 kWh.
- Why it matters: The system’s high charging capacity (14 kW per stack) and modular efficiency improvements offer EPCs a versatile, future-proof solution for high-demand residential solar installations.
- Watch: The planned expansion of battery capacity to 28 kW per stack, scheduled for release in Q3 2026.
Background and Context
As the residential solar market in India shifts toward higher energy independence and self-consumption, the demand for robust, high-capacity storage solutions is rising. SolarEdge, a global leader in power electronics, has launched its new Nexis residential solution. This product suite aims to address installation complexity and efficiency losses through a multi-range inverter concept and a highly modular battery architecture designed to handle modern peak-load conditions.
Key Details
The Nexis hybrid inverter utilizes a multi-range concept, allowing a single unit to cover power classes ranging from 8 kW to 20 kW in six adjustable steps. The device features silicon carbide power electronics, achieving a European weighted efficiency of 98.4% to 98.75%. It is fanless, IP65-rated for outdoor use, and operates within a temperature range of -40 C to +60 C. Notably, it supports up to 200% DC oversizing and provides a 20 kW three-phase backup power function with a switchover time of less than 50 milliseconds.
The accompanying battery system is equally versatile, supporting single- and three-phase, as well as AC- and DC-coupled applications. Each module provides 4.9 kWh of capacity, with a single stack reaching 20 kWh and parallel operations allowing up to 78 kWh. Charging and discharging capacity has been upgraded to 14 kW per stack, with a roadmap to reach 28 kW by Q3 2026. Each module includes a dedicated DC-DC converter (92% efficiency) and is flood-resistant, capable of withstanding 37 cm of water for 72 hours.
What This Means for EPCs and Developers
For EPC contractors, the Nexis system offers significant logistical advantages. The inverter’s ability to cover multiple power classes reduces the need to stock various models, simplifying inventory management. Installation is further streamlined by an enclosure design that allows commissioning without opening the unit, with all communication ports accessible externally. The modular battery design, featuring quick connectors and wall-bracket mounting, reduces labor time, while the ability to scale capacity post-commissioning provides developers with a powerful tool for upselling to residential clients.
What Happens Next
SolarEdge is positioning the Nexis system to capture the growing segment of prosumers who require high-capacity storage to manage midday peak loads. While the current system offers significant performance gains, the industry will be closely monitoring the Q3 2026 update, which promises to double the charging capacity to 28 kW per stack. This evolution will be critical for installers looking to support the increasing electrification of residential heating and EV charging infrastructure.
