Completed project · 2026

37.8 kWp rooftop photovoltaic system with 64 kWh battery storage in Kardzhali.

A hybrid rooftop PV + ESS system with two inverters operating in parallel and four 16 kWh battery modules.

01 · Location: Kardzhali, Bulgaria
02 · Year: 2026
03 · PV capacity: 37.8 kWp
04 · ESS capacity: 64 kWh
05 · Battery bank: 4 × 16 kWh
06 · Architecture: 2 parallel inverters

Technical overview

A parallel hybrid architecture for a larger PV + ESS system.

The system combines a 37.8 kWp rooftop photovoltaic plant with a 64 kWh battery bank. Two hybrid inverters operate in parallel, while the storage system is built around four 16 kWh battery modules.

The photovoltaic field is installed along the pitched metal roof. The technical area integrates the inverters, protection equipment, power distribution and battery bank. The photographic record presents the real installation and the organisation of its subsystems.

Photo documentation

The PV field and technical architecture.

Authentic site photography of the rooftop system, parallel inverters and 64 kWh battery bank in Kardzhali.

37.8 kWp rooftop photovoltaic system in Kardzhali — The photovoltaic field extending along the metal roof.

Rows of photovoltaic modules on a metal roof — Module-row layout and the cable route.

Photovoltaic modules from a 37.8 kWp rooftop PV system — Detail of the modules and rooftop installation.

Completed photovoltaic array in Kardzhali at sunset — The completed array at the end of the installation day.

Two photovoltaic module fields on a rooftop in Kardzhali — General view of the two rooftop PV sections.

Two hybrid inverters operating in parallel — Parallel inverter architecture and protection board.

Four battery modules with 64 kWh total capacity — 4 × 16 kWh battery bank and power distribution.

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37.8 kWp rooftop photovoltaic system with 64 kWh battery storage in Kardzhali.

A parallel hybrid architecture for a larger PV + ESS system.

The PV field and technical architecture.

Planning a larger photovoltaic system with battery storage?

Let’s structure your project.