Electric11 expanded an existing domestic energy-storage system in Wymondham by installing three Pylontech US5000C batteries. The upgrade added 14.4 kWh of storage and increased the property’s total battery capacity from 42 kWh to 56.4 kWh.
The additional batteries were integrated into an existing grid-connected, three-phase system powered by three Victron Quattro 48/8000/110 inverter-chargers.
Project Overview
- Location: Wymondham, Norfolk
- Property type: Domestic
- System type: Grid-connected three-phase energy-storage system
- Existing batteries: 12 Pylontech US3000C units
- New batteries: 3 Pylontech US5000C units
- Additional storage: 14.4 kWh
- Total storage after upgrade: 56.4 kWh
- Increase in capacity: 34.3%
- Inverter setup: 3 Victron Quattro 48/8000/110 inverter-chargers
- Combined inverter capacity: Approximately 24 kVA
The Existing Home Energy System
The property already had a substantial three-phase battery-storage system consisting of 12 Pylontech US3000C batteries. Together, these provided 42 kWh of storage capacity.
Three Victron Quattro 48/8000/110 inverter-chargers managed the system, providing approximately 24 kVA of combined inverter capacity across the three-phase installation.
Rather than replacing the existing equipment, the project focused on expanding the available storage while retaining the established Victron and Pylontech setup.
Adding 14.4 kWh of Pylontech Battery Storage
Electric11 supplied and fitted three Pylontech US5000C batteries, each providing 4.8 kWh of nominal storage capacity. Together, the new units added 14.4 kWh to the system.
The battery count increased from 12 to 15 units, while total storage rose from 42 kWh to 56.4 kWh. This represented a 34.3% increase in available battery capacity.
The expanded system gives the property more capacity to store electricity for later use while continuing to operate through the existing three-phase Victron inverter arrangement.