Design Manager- Electrical High Voltage (Renewable Energy)

Location: Hyderabad

Experience: 9 to 14 years

Industry: Renewable Energy / Power Infrastructure

About the Role:

We are looking for passionate and technically sound Electrical Design Engineers with a strong foundation in Basic Electrical Engineering and hands-on experience in designing medium- and high-voltage electrical systems (11kV to 220kV and above). This is a core engineering role ideally suited for professionals looking to apply their skills in the growing Renewable Energy sector, particularly in Solar Power Plant design and execution.

Key Responsibilities:

Electrical System Design (11kV220kV and above):

- Design of substation single-line diagrams (SLDs), bus schemes, switchyard layouts, and earthing systems.
- Electrical load flow studies, fault level calculation, equipment sizing, and interconnection schemes.

Protection Systems:

- Design of HT and LT panel schemes, including relay coordination and selection of protection devices (overcurrent, earth fault, differential, etc.).
- Preparation of control and protection logic, schematic diagrams, interlocking schemes, and panel GA drawings.

Transformer Design Understanding:

- Working knowledge of power transformer sizing, vector group selection, impedance, cooling type, and loss analysis.
- Evaluation of transformer data sheets and technical specifications.

Cable Engineering:

- Voltage drop calculations, cable derating factors, and cable loss analysis across HT and LT networks.




- Cable sizing and routing design for underground and overhead layouts in power plant applications.

(Bonus) Solar PV Design Exposure:

- Experience with inverter selection, string sizing, DC cable layouts, and grid integration is a plus.
- Familiarity with SCADA, monitoring systems, and SLDC interfacing is desirable.

Qualifications & Skills:

- B.E./B.Tech/M.Tech in Electrical Engineering from a recognized institute.
- 9-12 years of relevant experience in electrical system design for utility-scale power projects.
- Proficient in AutoCAD, ETAP/PowerWorld/Digsilent, and Microsoft Excel.
- Deep understanding of Indian grid codes (CEA regulations), IS/IEC standards, and DISCOM interconnection guidelines.
- Robust analytical and engineering fundamentals.

What We Are Looking For:

- Passion for core electrical engineering and clean energy.
- Willingness to work on end-to-end engineering, from concept to commissioning.
- High attention to detail, structured thinking, and a problem-solving mindset.
- Ability to collaborate with internal teams and external stakeholders (consultants, vendors, DISCOMs).

Preferred (Not Mandatory):

- Prior experience in solar project engineering, though not required.
- Exposure to substation construction or utility coordination.
- Hands-on knowledge of SCADA/data acquisition systems.

Why Join Us

- At ILIOS Power, we are building the next generation of clean energy infrastructure. You'll be part of a mission-driven engineering team shaping Indias energy future with opportunities to work on grid-scale solar projects, high-voltage design, and next-gen technologies.

📌 Design Manager- Electrical High Voltage (Renewable Energy) (Secunderabad)
🏢 ILIOS Power
📍 Secunderabad