BESS EPC
Battery Energy Storage — EPC & Development

Turnkey BESS for Grid, C&I and Hybrid Systems

We plan, procure, build and integrate battery storage with verified interfaces and grid compliance across Germany and Europe.

+680 MWh
Ready-to-build
+3 GWh
Pipeline
20+ years
Engineering experience

Applications & Value

Flexible from MV to EHV: standalone BESS or hybridized with PV and wind. We focus on bankable delivery, interface risk reduction and grid compliant operation.

Grid services

FCR, aFRR/mFRR, voltage support, congestion management and black start readiness with certified protection and control.

Energy trading

Arbitrage, intraday strategies, floor/CPA models and aggregator integration. Clear metering and data integrity for settlement and performance visibility.

C&I & Hybrid

PV+storage, peak shaving, backup power, load management and network charge optimization. Strong focus on safe operation and predictable performance.

Services across the lifecycle

EPC execution plus engineering, verification and grid integration to reduce technical risk from design to operation. Clear scope, clean interfaces, bankable evidence.

Turnkey EPC(F)

Engineering, procurement, construction and verified system integration for grid, C&I and hybrid projects.

  • Scope definition and interface responsibility matrix (RACI)
  • Construction supervision, punch lists and closure tracking
  • As-built documentation and structured handover package

Project development support

De-risking before EPC: grid reality, permits, stakeholders and realistic RTB planning.

  • Site and grid studies (MV to EHV)
  • Permitting coordination and stakeholder alignment
  • RTB preparation: schedule, risks, deliverables

Grid integration and compliance

Interface management and documentation for VDE-AR-N 4110/4120/4130, EN 50549 and project-specific requirements.

  • Protection and control concept, test planning
  • Evidence packages for DSO/TSO and acceptances
  • FAT/SAT support and closure of compliance gaps

Engineering deliverables

Clear drawings and interface documents that prevent rework and disputes.

  • Single Line Diagram (SLD) and protection concept
  • Cable lists, I/O lists, signal mapping
  • Interface Control Documents (ICD) and integration plan

Quality assurance and verification

Incoming goods checks, installation verification, punch lists and acceptance readiness.

  • Delivery verification (incoming goods) and traceability
  • Installation verification and scope completeness
  • Findings report with corrective actions

Commissioning support and handover

Commissioning readiness reviews, test planning, defect closure and structured handover documentation.

  • Commissioning validation and safety readiness
  • Operational checks and review of key parameters
  • Handover punch list and closeout

Owner’s engineering support

Independent owner representation during execution: quality, schedule, interface risk and acceptance closure.

  • Design and interface coordination
  • Execution quality checks and status reporting
  • Acceptance support and closeout

Technical due diligence support

Document review, interface risks and compliance gaps for buyers, investors and lenders.

  • Document review and gap analysis
  • Risk and mitigation recommendations
  • Bankable reporting structure

Operations and O&M concept

Monitoring setup, preventive maintenance logic, availability KPIs and long-term OPEX control.

  • KPI structure and reporting logic
  • Alarm logic, event classification and escalation
  • Data integrity for trading and settlement

What we deliver

Structured documentation and evidence that makes projects easier to finance, easier to operate and easier to defend in case of disputes. Focus on interfaces, compliance, acceptance readiness and performance transparency.

  • Scope definition and interface responsibility matrix (RACI)
  • Acceptance and commissioning evidence pack
  • Quality punch lists with closure tracking
  • Grid compliance documentation set aligned to requirements

References & Pipeline

Metelen, Germany
Utility-scale 91 MW / 231 MWh
  • 62 BYD containers, 4.2 MWh each
  • 31 SMA PCS, 5 MW each
Greater Bielefeld Area, Germany
Utility-scale 250 MW / 680 MWh
  • Utility-scale storage project with grid and market access (RTB/Build)
Veľká Bytča, Slovakia
C&I 2.6 MW / 5 MWh
  • 2× 40-ft Tecloman; 4× 650 kW PCS; C-rate 0.5

Partners & Technology

Team

Bahman Hamedebarghi

Bahman Hamedebarghi

Managing Director & Shareholder

Physics (Karlsruhe). Leadership roles at Dresdner Bank, Credit Suisse, Siemens, T-Systems China, Swisscom; founder across PH/IR/DE; MD of NE3T GmbH; Board member of the European Chamber of Technology; Head of Engineering at GFGBA.

Mohsen Tabrizi

Mohsen Tabrizi

Chief Technical Consultant

MBA; B.Eng. Industrial Electronics; 20+ years in electrical engineering and clean energy; TÜV-certified PV and storage consultant; EPC and commissioning background under German standards.

Contact

📍 Industriestraße 4, 70565 Stuttgart, Germany

✉️ info@bess-epc.de

📞 +49 175 1055104

Managing Director & Shareholder: Mr. Bahman Hamedebarghi

To help us respond fast

  • Project location and system size
  • BESS scope (and PV/grid scope if relevant)
  • Stage: planning, delivery, commissioning or operation
  • What you need: report, inspection, verification or advisory

If you prefer, share a short technical brief and we will propose a structured scope and deliverables.

You don’t have to answer all points. They are just to speed things up.