Solis inverters – Efficient energy conversion

Solis inverters provide efficient conversion of solar energy into stable grid power. With conversion efficiencies up to 98% and advanced hybrid technology, these systems are widely used in both residential and commercial PV installations.

Solar installers, energy consultants, and PV professionals rely on Solis S6 hybrid inverters for reliable energy conversion, broad battery compatibility, and intelligent management of energy flows within modern solar energy systems.

In summary: A Solis inverter converts solar energy into usable power while simultaneously managing battery storage, self-consumption, and grid interaction via advanced algorithms such as Solis AI.
📢 News — 30 June 2026: Xemex P1 meter successfully tested on Solis hybrid inverters

The Xemex meter has been successfully tested on Solis hybrid inverters with wireless configuration. This allows you to use the P1 port of your smart meter as a metering solution for Solis hybrid inverters — without separate CT clamps or an external energy meter.

  • ✓ Firmware for single-phase hybrid inverters: Now available
  • ✓ Firmware for three-phase hybrid inverters: Check current availability with Solis/Rebor

Always verify the most recent firmware version and compatibility list before commissioning.

1. Dynamic Energy Tariffs & Solis AI

In combination with Solis AI, an integrated energy management system is created that automatically responds to dynamic electricity prices, consumption profiles, and grid load.

In practice: Solis AI ensures that batteries charge automatically during low energy prices and discharge during high tariffs. The system analyses real-time data and automatically determines the optimal energy flow within the installation.

  • Optimise use of dynamic energy pricing
  • Maximise self-consumption
  • Real-time monitoring via SolisCloud
  • Automatic optimisation based on weather forecasts

Practical example: During low nighttime prices, energy is stored in the battery, while during high daytime prices, stored energy is used or exported to the grid.

2. Home Battery Compatibility

Important to know: Solis hybrid inverters are compatible with leading battery brands such as Dyness, Pylontech, and BYD. This synergy enables advanced applications such as:

  • Self-consumption optimisation
  • Peak shaving and grid balancing
  • Energy trading with dynamic tariffs
  • Reliable backup power supply during grid outages

🔋 Dyness Storage | 🔋 Pylontech Storage

3. Practical Installation: Phase Allocation & Smart Metering

Key point: In Solis systems, all single-phase devices must be connected to L1, and the smart meter must be wired completely correctly.

The reason for this is that the inverter internally always uses L1 as the reference phase for power regulation, export limiting, and battery control. The smart meter measures all phases (L1, L2, L3), while single-phase inverter control is referenced to L1.

Metering options for Solis hybrid inverters

Several compatible metering solutions are available for Solis hybrid inverters:

  • Eastron SDM630MCT (CT meter via RS485): Proven solution for both single-phase and three-phase installations.
  • Xemex P1 meter (wireless via P1 port): Successfully tested on Solis hybrid inverters. Firmware for single-phase inverters is now available. Check current availability of the three-phase firmware with Solis/Rebor. Always verify the most recent firmware version before installation.

Common Practical Scenarios:

  • Single-phase hybrid on a 3-phase grid: Always connect to L1 → otherwise, incorrect import/export measurement and faulty battery logic occur.
  • 3-phase hybrid + single-phase PV inverter: The single-phase inverter must be on L1 → otherwise, phase imbalance and incorrect compensation arise.
  • Zero-export systems: Wrong phase = wrong regulation → potential simultaneous import and export.
Symptom Cause Solution
Black meter screen Supply voltage (L + N) not connected Connect supply directly to the meter
Inaccurate measurement Wrong neutral reference or CT direction Check N and CT arrow (toward grid)
No communication RS485 A/B swapped or wrong address Verify wiring and address (usually 1)
4 & 5. PV System Architecture & Grid Balancing

The hybrid inverter acts as the central hub between solar panels, battery, and the electricity grid. This system manages:

  • Direct use of solar energy
  • Storage of excess energy
  • Peak shaving (reducing peak grid load)
  • Load shifting (moving consumption to cheaper periods)
  • Backup during power outages and grid stability support
6. How Does a Hybrid Inverter Work? (Step-by-Step)
  1. Solar panels produce direct current (DC).
  2. The inverter converts DC into alternating current (AC) for the loads.
  3. Excess energy not immediately consumed is stored in the battery.
  4. The battery supplies stored energy during high demand (e.g., in the evening).
  5. If the battery is full and there is no consumption, energy is exported to the grid.
7. Single-Phase vs. Three-Phase Inverters

Single-phase inverters: Compact solutions for smaller residential installations.

Three-phase inverters: Powerful systems for larger homes and commercial applications. These distribute power evenly across multiple phases and are suitable for heavier grid connections.

8. Troubleshooting Data Logger & Measuring System

Diagnostics for faults:

  • No data in SolisCloud: Check COM port seating, power (5V), and 2.4GHz WiFi.
  • Incorrect values: Verify phase connection (L1 mandatory), CT direction (arrow to grid), and presence of neutral.
  • Black smart meter screen: Check supply voltage (L + N) and consumer unit fuses.
  • Xemex P1 meter no connection: Verify that the correct firmware is installed on the inverter. Firmware for single-phase hybrid inverters is available. Check current availability of the three-phase firmware with Solis/Rebor.

Frequently Asked Questions (FAQ)

Can I use the P1 port of my smart meter as a metering solution for a Solis inverter?

Yes. The Xemex meter has been successfully tested on Solis hybrid inverters with wireless configuration. This allows you to use the P1 port of your smart meter as a metering solution — without separate CT clamps or an external energy meter via RS485. Firmware for single-phase hybrid inverters is available. Please check the current availability of the three-phase firmware with Solis or Rebor. Always verify the most recent firmware version and compatibility list before commissioning.

Why must a single-phase Solis inverter be connected to L1?

Solis uses the L1 phase as a reference point for all internal control algorithms. If connected to L2 or L3, the inverter cannot correctly synchronize energy flows with the smart meter, leading to incorrect measurements and unstable performance.

Why are the smart meter measurements incorrect?

This is usually caused by a faulty neutral connection, a missing measurement reference, or an incorrect CT direction (the arrow must point towards the grid connection).