2MW Solar + 3MWh Battery Storage for a Heat Pump Factory in Estonia

Project Overview

Solar and Storage for Flexible Factory Energy Management

This project was developed for a heat pump factory in Estonia, where electricity demand, solar generation and grid conditions need to be managed together.

The system includes a 2MWp solar PV array made up of 3,200 × 625Wp modules, together with three 1MWh containerized battery energy storage systems. Three 500kW hybrid inverter systems connect the solar, battery storage and grid-side operation.

During periods of solar generation, the system is designed to prioritize on-site consumption. Surplus electricity can be stored for later use or exported to the grid where local market conditions allow. The battery system also gives the site greater flexibility to schedule energy use around electricity prices.

System Configuration 

System Function Summary

• Prioritizes the use of on-site solar generation for factory loads.
• Stores available solar energy for later use when operating conditions require.
• Supports energy arbitrage based on applicable electricity price periods.
• Allows surplus energy to be exported to the grid, subject to local grid and tariff arrangements.
• Uses a modular containerized configuration for large-scale commercial and industrial deployment.

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