# SOLOS GmbH

> Owner-led EPC partner for utility-scale solar PV and battery storage (BESS) across Europe. Headquartered in Saarbrücken, Germany, with a second office in Berlin.

SOLOS GmbH (formerly Greencells Regio GmbH) plans, finances, builds and operates ground-mounted and rooftop photovoltaic plants (5–320 MWp) and grid-scale battery storage systems (10–500 MWh) in Germany, the Netherlands and Italy. Everything from one hand: site assessment, design (DIN VDE / IEC / EN), procurement of Tier-1 components, turnkey EPC, BESS integration and up to 30 years of operations & maintenance. Founder and Managing Director: Andreas Hoffmann. Track record: 3.4 GWp delivered, 187+ PV projects, 75+ years of combined senior-team experience.

## Key facts
- Services: EPC, engineering & design, procurement, BESS integration, O&M (up to 30 years)
- Solar: utility-scale ground-mount, rooftop, agri-PV, hybrid with wind/storage (5–320 MWp)
- Storage: standalone, hybrid or grid-stability BESS (10–500 MWh; FCR, aFRR, EMS, intraday)
- Markets: Germany, Netherlands, Italy (EU-wide)
- Track record: 3.4 GWp delivered, 187+ PV projects
- Headquarters: Europaallee 6, 66113 Saarbrücken, Germany · Office: Hasenheide 78, 10967 Berlin
- Contact: info@solos.energy · +49 6872 309948-0 · response within 48 hours
- Quality: in-house engineering, Tier-1 (BloombergNEF) components, member of the BNE "Gute Planung" best-practice initiative

## Main pages
- [Solar](https://solos.energy/solar): Utility-scale photovoltaics 5–320 MWp — ground-mount, rooftop, agri-PV, hybrid.
- [BESS](https://solos.energy/bess): Grid-scale battery storage 10–500 MWh — standalone, hybrid or grid-stability asset.
- [Services](https://solos.energy/leistungen): Six capabilities under one roof — assessment, design, procurement, EPC, BESS integration, 30-year operations.
- [Projects](https://solos.energy/projekte): Delivered and active references across Germany, the Netherlands and Italy.
- [Company](https://solos.energy/ueber): About SOLOS — owner-led EPC partner from Saarland with 75+ years of senior experience.
- [Careers](https://solos.energy/karriere): Open roles in design, construction and operations.
- [Contact](https://solos.energy/kontakt): Project enquiries and partnerships — 48-hour response.

## Languages
- German (default): https://solos.energy/
- English: https://solos.energy/en/
- Italian: https://solos.energy/it/

## Legal
- [Imprint](https://solos.energy/impressum)
- [Privacy policy](https://solos.energy/datenschutz)

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## Detail

### Solar (https://solos.energy/solar)
Ground-mount PV, rooftop, agri-PV and hybrid with wind. Tier-1 components. Turnkey EPC and 30-year O&M under one roof, from 5 MWp to 320 MWp.

### Battery storage / BESS (https://solos.energy/bess)
Design, EPC and integration of utility-scale battery storage. Standalone, hybrid with PV, or grid-stability asset. Services for FCR, aFRR, EMS and intraday marketing; full bankability documentation.

### Services (https://solos.energy/leistungen)
Site assessment, basic & detail design (IEC / DIN VDE, medium voltage to 110 kV, substations, BIM-ready), procurement, EPC, BESS integration, and operations & maintenance for up to 30 years. In-house engineering — no white-label plans, no outsourced detail design; every project has an accountable lead.

### Projects (https://solos.energy/projekte)
Delivered and active utility-scale PV and storage references in Germany, the Netherlands and Italy — from the Saarland to northern Italy. Includes hillside-mounted PV (e.g. Ludwigsparkstadion Saarbrücken, Solarpark Merzig), large Hungarian solar parks and Livos-Group battery parks.

### Company (https://solos.energy/ueber)
Owner-led EPC partner based in Saarbrücken. Founder and Managing Director Andreas Hoffmann has shaped the European solar market and built one of Germany's most recognised solar EPC houses. 75+ years of combined senior-team experience.

### Careers (https://solos.energy/karriere)
Open roles in engineering, construction, BESS, asset management and procurement. Saarbrücken, Berlin and remote. Flat structures, international projects, clear ownership.

### Contact (https://solos.energy/kontakt)
Project enquiry in under five minutes, response within 48 hours. HQ Saarbrücken: +49 6872 309948-0, info@solos.energy.