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BRL-ENG-01 · Engineering & Design
Senior Solar & Hybrid Plant Design Engineer
Power Generation Pune / Hybrid · Hybrid 7–10 years · Senior
Own the electrical and layout design of utility-scale solar, wind-solar hybrid and solar-plus-storage plants from bid-stage concept to issued-for-construction drawings. Your design decisions fix the energy yield, the capital cost and the grid compliance of every plant BARREL builds and operates for 25 years.
Scope of work
- Prepare bid-stage concept designs: plot layout, DC/AC ratio, tracker or fixed-tilt selection and block sizing for each site.
- Run energy yield assessments with P50/P90 outputs and defend loss assumptions to lenders' engineers.
- Produce and check single-line diagrams, cable schedules, string and inverter configurations, and earthing layouts.
- Size DC and AC cables, combiner boxes, inverter duty transformers and the pooling substation for voltage drop, short circuit and thermal limits.
- Integrate wind and BESS blocks into hybrid plants so the combined output meets the PPA's capacity utilisation and peak-supply clauses.
- Prepare the technical specifications and data sheets for modules, inverters, trackers, transformers and switchgear used in procurement.
- Review vendor drawings and type test reports and close technical deviations before purchase orders are placed.
- Prepare the grid connectivity application data and simulation inputs required by the CTU or the state transmission utility.
- Support site teams through construction with technical queries, design changes and as-built drawing control.
- Feed design templates, bills of quantity and yield models into BARREL's Project Intelligent Platform (PIP) so future bids start from proven work.
Technical description
- Energy modelling in PVsyst (and SAM or PlantPredict as cross-checks), using Meteonorm, Solargis or site-measured irradiance data.
- Module and BOS compliance with IS 14286 / IEC 61215, IS/IEC 61730, the BIS Quality Control Orders and the MNRE ALMM List-I and List-II requirements.
- DC system design to IEC 62548 and IEC 60364-7-712, with commissioning and documentation to IEC 62446-1.
- Earthing to IS 3043 and IEEE 80, and lightning protection risk assessment to IS/IEC 62305.
- Grid compliance with the CEA Technical Standards for Connectivity to the Grid, including reactive power, LVRT/HVRT and harmonic limits, and the IEGC 2023.
- Load flow, short-circuit and harmonic studies in ETAP, PSS/E or DIgSILENT PowerFactory for the plant and its interconnection.
- Layout and terrain work in AutoCAD and Civil 3D, with PVcase or an equivalent tool for array layout on undulating land.
- Performance monitoring design to IEC 61724-1, including weather station class and sensor placement.
Commercial description
- Optimise the levelised cost of energy across module, inverter, tracker and land choices, not just the capital cost.
- Keep design-driven quantity growth from bid to IFC within the agreed contingency.
- Protect the PPA's minimum CUF and generation-shortfall liabilities through a realistic, defensible yield estimate.
- Work with procurement and vendors on value engineering without weakening warranties or bankability.
- Present design and yield cases to lenders' independent engineers and close their observations on time.
Skills required
- Utility-scale PV electrical design from concept to IFC.
- Energy yield assessment and loss-tree analysis.
- Cable, transformer and switchgear sizing calculations.
- Hybrid plant configuration with wind and battery storage.
- Reading and challenging vendor type test reports.
- Power system study set-up and interpretation.
- Preparing technical specifications for tender packages.
- Clear, checkable design documentation and calculation notes.
- Coordination across civil, mechanical and SCADA disciplines.
Talent we look for
- You check your own numbers before anyone else has to.
- You can explain a loss assumption to a banker in plain words.
- You prefer a simple, maintainable design to a clever, fragile one.
- You learn from site feedback and change your templates because of it.
- You stay calm and precise when a bid deadline is close.
Qualifications
- B.E./B.Tech in Electrical or Electrical & Electronics Engineering; M.Tech in Power Systems or Renewable Energy is an advantage.
- Seven or more years in utility-scale solar design, with at least three plants of 50 MW or larger taken to commissioning.
- PVsyst proficiency demonstrated on bankable reports.
- Working knowledge of ETAP, PSS/E or PowerFactory.
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