Designation : Solar electrical Design Engineer.

Qualification : BE Electrical Engineering

Grade : Design Manager

Experience : in years 3-5 years of relevant experience

Responsibilities:

Design and engineer on-grid/off-grid solar rooftop systems with an emphasis on

inverter topology, control algorithms, and system efficiency.

Specify and select key electrical components: inverters, junction boxes, cables, fuses,

earthing systems, and lightning protection.

Perform inverter design validation and verification through simulations and hardware

testing.

Prepare and verify single-line diagrams (SLDs), cable schedules, and layout drawings

using AutoCAD, PVsyst, or SketchUp.

Ensure proper AC/DC system integration including inverter configuration, ACDB/DCDB

selection, and grid interconnection setup.

Analyse site survey data such as roof orientation, tilt, shadow analysis, and irradiance

for system optimization.

Perform energy yield estimation and efficiency calculations using simulation tools like

PVsyst.

Coordinate with electrical project engineers and vendors to ensure system feasibility

and compliance.

Prepare detailed Bills of Materials, technical datasheets, and cost estimates.

Ensure designs meet standards like MNRE, IEC, IS, BIS, DISCOM, and local codes.

Incorporate net-metering policies and support documentation for

DISCOM/government approvals.

Design battery storage systems and hybrid systems (solar + grid + DG) for off-grid

applications.

Required Skills and Knowledge:

Strong knowledge of solar inverter technologies (string, central, micro, hybrid), MPPT

algorithms, and firmware configuration.

Experience in inverter parameter setting, grid synchronization, and anti-islanding

protection.

Understanding of power electronics, SLDs, grounding, and protection systems.

Proficiency with PV system design tools: PVsyst, AutoCAD, SketchUp.

Hands-on experience with rooftop PV installation and system commissioning.

Familiarity with electrical components: ACDB/DCDB, MC4 connectors, surge protection.

Knowledge of BIS/IEC standards, MNRE guidelines, and DISCOM procedures.

Ability to troubleshoot inverter and electrical system issues.

Awareness of solar economics: ROI, payback period, subsidy eligibility.

Electrical Design Engineer