Store smarter. Integrate seamlessly.

We design and manage battery energy storage systems as part of complete energy infrastructures – combining expertise in substations, grid connections, and renewable generation.

Part of a Bigger Picture

Battery systems are rarely developed in isolation. We often design and manage BESS as part of a broader project – including solar parks, substations, and grid connections. Our strength lies in integrating all these elements into one coherent system that performs reliably from day one.

Our services cover every phase of a BESS project. Whether you're adding storage to a renewable energy site or developing a standalone system, we guide you from early planning to project completion.

Feasibility & technology assessment

We begin with a comprehensive analysis of the project's technical and economic viability:

  • Assessment of BESS technologies and suppliers

  • Comparison of battery alternatives and system sizing

  • Cost estimation and scenario modeling

  • Technical and commercial feasibility report

  • Soil & environmental studies

🔎 We help you make informed decisions early – with a clear view of performance, compatibility, and cost.

Preliminary design

We create the foundation for implementation by producing all key design documents:

  • Site layout and placement planning

  • Preliminary single-line diagram (SLD)

  • Connection point planning and routing to the substation or grid

  • Integration planning with existing infrastructure

📐 Our designs take into account future needs, site constraints, and regulatory expectations.

Permitting process

We prepare the necessary documentation and support you through the permitting process:

  • Construction permit application and layout drawings

  • Submission of permit documentation to authorities

  • Support for additional authority negotiations as needed

📝 We ensure your permitting process moves forward smoothly – even when requirements change.

Project management & supervision

We represent the client during construction, ensuring safety, quality, and schedule.

  • On-site and remote project coordination

  • Supervision of key installation stages

  • Safety coordinator duties as required by law

  • Meeting facilitation and progress reporting

🦺 With our remote management tools, we can efficiently oversee BESS projects across multiple locations.

Grid connection

We handle the technical analysis needed for interconnection and grid compliance:

  • Preliminary network calculations

  • Component dimensioning based on project-specific loads

  • Reactive power and load balancing simulations

  • Coordination with grid operators

⚡ This phase is often coordinated with our substation and overhead line design services.

EPC tendering and supplier selection

We manage the procurement process with a focus on quality, risk, and price:

  • Preparation of EPC tender materials

  • Coordination of supplier inquiries and negotiations

  • Technical and commercial evaluation

  • Drafting of final contracts

🤝 We are independent of suppliers and always act in the best interest of our client.

Ask more about our services

Rauno Lassila

Head of Electricity

rauno.lassila@cfe.fi

+358 (0)40 560 5275