The Estate Powerhouse (12.4kW Array)
0% VAT applies on this system when bundled as a full turnkey installation package.
Guide price (ex. VAT). Your final quote confirms exact pricing, stock, and delivery.
Engineered for high-consumption properties, home businesses, and electric vehicle (EV) fast-charging integration. Features a massive array of 26 x premium LONGi EcoLife panels paired with a 15kWh multi-stack battery bank and optimized dual-inverter tracking. Complete Package Guide Price: Custom Quote Required (0% VAT).
Power:12.48 kW Peak Output
Module Model:LR7-54HVB-480M
Module Technology:26 x LONGi LR7-54HVB-480M N-Type Panels
Module Efficiency:23.5% Module Efficiency
Product Warranty:25 Years
Linear Performance Warranty:30 Years
Dimensions:Requires approx. 53m² roof area
Unit Weight:561 kg Total Array Weight
Residential layout benefits
- Premium sleek all-black aesthetics support cleaner roof integration and stronger kerb appeal on modern residential properties.
- Higher-efficiency cell architecture helps maximize usable generation from limited home roof area.
- Long-term product and performance warranties are designed for predictable household energy planning and installation confidence.
- Optimized dimensions and weight support practical handling, mounting, and array planning for typical domestic roof structures.
Module Nameplate
LONGi EcoLife LR7-54HVB-480M electrical data
STC electrical and compliance values from the manufacturer nameplate for the panel used in this package.
Electrical specifications
Rated Maximum Power (Pmax)480W
Power Tolerance0 ~ +3%
Voltage at Pmax (Vmp)33.28 V
Current at Pmax (Imp)14.43 A
Open-Circuit Voltage (Voc)40.29 V
Short-Circuit Current (Isc)15.13 A
Voc & Isc Tolerance±5%
Maximum System Voltage1500 V
Maximum Series Fuse Rating25 A
Operating Temperature-40°C ~ 85°C
Protection ClassClass II
Testing & compliance
Standard Test Conditions (STC)AM1.5, 1000W/m², 25°C
IEC StandardsIEC 61215:2016 / IEC 61730:2016
UK / EU marksUKCA, CE, TÜV SÜD
Values measured at Standard Test Conditions (STC). Full PDF datasheets are issued with your fixed quote.