Wind farms are investments that demand correct design of the site's electrical infrastructure as much as of turbine technology. Connecting the turbines to the MV collection network, designing the switchyard substation, and meeting the grid connection criteria are preconditions for the plant to run efficiently and without interruption. The wind farm design service takes on the engineering of this electrical infrastructure end to end.
Miratek works within the scope known as the electrical balance of plant in wind farm projects: turbine connections, MV collector lines, the internal transformer and switchyard design, protection coordination, and SCADA integration are designed under one roof. In the turnkey model, design, procurement, installation, and commissioning proceed within the same chain of responsibility.
During the design process, site conditions, cable routes, and the grounding system are evaluated together. This both reduces coordination problems during construction and minimizes losses during operation.
Technical Scope Summary
| Application Areas | Licensed and unlicensed wind farms |
| Electrical Scope | Turbine connections, MV collector network, switchyard substation |
| Voltage Level | MV collection network (1-35 kV) and HV connection design |
| Design Disciplines | Electrical designs, protection coordination, grounding design |
| Integration | SCADA and remote monitoring systems |
| Delivery Model | Turnkey execution from design to commissioning |
How We Work
Site Survey and Preliminary Assessment
Site conditions, turbine layout, and the grid connection point are examined to outline the electrical infrastructure.
Design
Electrical designs covering the MV collector network, cable routes, the switchyard, and protection coordination are prepared.
Approval and Permitting
Design approval and connection processes before the relevant authorities are followed up.
Procurement and Installation
MV cables, cubicles, transformers, and panel equipment are procured; site installation proceeds under occupational safety discipline.
Testing and Commissioning
Cable tests, relay coordination checks, and functional tests are completed and the system is commissioned.
Scope of Work
- Design of turbine connections and the MV collector network
- Switchyard and internal transformer substation design
- Cable route planning and sizing calculations
- Protection coordination and relay setting studies
- Grounding and lightning protection system design
- SCADA and monitoring system integration
- Testing, commissioning, and acceptance procedures
Frequently Asked Questions
What is the scope of the electrical works in a wind farm project?
It covers the entire electrical infrastructure from the turbine output to the grid connection point: MV collector lines, the switchyard, protection systems, grounding, and SCADA integration. In the industry this scope is known as the electrical balance of plant.
Does design start before wind measurements are taken?
Site measurement is essential for the investment decision, and common industry practice is at least one year of measurement data. Electrical design, however, starts once the turbine layout is settled; Miratek steps in at that stage to design the electrical infrastructure.
Can an existing wind farm be revised or its capacity increased?
Yes. The capacity of the existing collector network and switchyard is analyzed, and additional turbine connections or equipment renewal can be designed. The work is planned to minimize the plant's production loss.
