Loxone PV and BAT storage

The industrial site had a 300 kW photovoltaic power plant (4× Fronius Tauro inverters) combined with a large-capacity BYD battery storage (230 kWh). However, it met the challenge of unconnected and fragmented systems without central supervision. It lacked effective energy flow management, protection against overflows into the grid during periods of negative market prices on the spot market, and a security notification system for monitoring temperatures and battery status in real time. The goal was to unify the entire energy system into one intelligent control node and optimize operating costs as much as possible.

Using the Loxone control system, all components (4× Fronius Tauro inverters and BYD / Refu battery storage) were integrated via the Modbus TCP interface into one comprehensive monitoring and control system.

Key functions of the Loxone solution:

Automatic dynamic control (SPOT): By monitoring current electricity prices on the spot market, Loxone automatically blocks inefficient overflows into the grid at negative prices.

Battery storage management: Control of charging/discharging of 230kWh batteries to cover the consumption peaks of industrial operations (peak shaving) and controlled use of own green energy.

Advanced monitoring and security: Continuous monitoring of battery status and temperatures with immediate sending of warning notifications and alarms in case of any deviation from the norm.

Clear visualizations: Unified user supervision for energy managers with complete historical data and statistics on production and consumption.