28kWh Home Battery Installation with Solis Inverter in Finland

Integrated with a Solis inverter and the home’s electrical distribution equipment, the system is designed to store solar energy, improve household self-consumption and maintain an energy reserve for selected loads.

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A 28kWh Battery System for Residential Solar Storage

The homeowner required a larger energy reserve than a standard single-battery installation could provide. The project was designed to store more daytime solar generation, support household electricity use after sunset and provide backup capacity during temporary grid interruptions.

The completed installation combines two matching battery units with a Solis inverter, an electrical distribution panel, protection equipment and system cabling in one dedicated indoor area.

Two Battery Units Form One 28kWh Energy Storage Bank

The installation uses two floor-standing LiFePO4 battery units operating together as one coordinated residential storage system.

Using two separate battery units makes transportation and positioning more manageable than installing one oversized enclosure. It also allows technicians to inspect each battery independently.

Solis Inverter Integration

The battery bank is connected to a Solis inverter that manages energy conversion between the solar array, battery system, household loads and utility grid.

Before installation, battery voltage, charge and discharge current, communication protocol and operating parameters must be verified against the selected Solis inverter model.

28kWh residential energy storage

Designed for Finland’s Indoor Installation Conditions

Protected from Direct Cold and Moisture Exposure

The system is installed in an enclosed utility room rather than being directly exposed to outdoor weather conditions. This helps maintain a more controlled operating environment for the batteries and associated electrical equipment.

A suitable installation area should provide:

  • Dry Indoor Environment
  • Adequate Ventilation
  • Stable Floor
  • No Water or Condensation
  • Protected Cable Routing
  • Reliable Grounding
  • Sufficient Service Clearance
  • Protection from Excessive Cold or Heat

Final installation must comply with applicable local electrical, building and fire-safety requirements.

CategoryProject Configuration
Project LocationFinland
ApplicationResidential Solar Energy Storage
Nominal Battery Capacity28kWh
Battery Quantity2 Units
Battery ChemistryLiFePO4
Battery DesignFloor-Standing
Inverter BrandSolis
Installation EnvironmentProtected Indoor Utility Room
Main FunctionsSolar storage, self-consumption and backup
Battery ManagementIntegrated BMS
Electrical IntegrationInverter, protection and distribution equipment
MonitoringLocal battery and inverter monitoring
Project TypeCustomized Residential Installation

Avepower Project Support

High Compatibility

Compatible with leading inverters including Growatt, GoodWe, SMA, Solis, and Deye.

Reliable Delivery

20,000㎡ factory with 15 production lines for fast, reliable delivery.

Communication Matching

CAN and RS485 communication matching is available for supported inverter platforms.

Installation Documentation

Connection diagrams, protocol instructions and reference settings can be provided for installation and commissioning.

Battery Capacity Planning

Storage capacity can be selected according to household consumption, solar generation and required backup duration.

Customized Battery Solutions

Battery capacity, appearance, branding, communication, packaging and documentation can be customized.

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Custom Energy Storage Solutions

OEM & ODM services designed for installers, wholesalers, distributors, and global brands.

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