Round-the-Clock Clean Power

Wind & Solar Hybrid EPC Projects

Wind blows at night. Sun shines during the day. Put them together on the same piece of land, share a single grid evacuation line, and you get power nearly 24 hours a day — at a lower cost than either technology alone. That's what hybrid EPC is all about.

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What We Do

Turnkey Wind-Solar Hybrid EPC

We engineer and build co-located wind turbine generators (2.1 MW to 4.2 MW) and ground-mount solar arrays with a shared pooling substation — boosting plant Capacity Utilization Factor (CUF) up to 42–48%.

WTG Foundation & Erection
Shared 33kV–132kV Pooling Switchyard
Inter-Row Solar Array Micro-Siting
Hybrid PPC & SLDC Forecasting Feed
Vishwa Powertech Hybrid Renewable Energy Ground Mount Installation
Our Capabilities

Turnkey Wind-Solar Hybrid EPC Scope

Single-contract accountability for wind turbine erection, solar PV micro-siting, and 132kV pooling substations.

WTG Erection & Commissioning

Heavy RCC foundation concreting, tubular steel tower section erection, nacelle lifting with high-tonnage cranes, rotor blade assembly, and yaw/pitch system commissioning for 2.1 MW to 4.2 MW wind turbines.

Corridor Solar Array Micro-Siting

Ground-mount TOPCon solar arrays installed between wind turbine corridors with precise shadow-clearance spacing, maximizing land utilization without compromising solar generation efficiency.

Hybrid Power Plant Controller (PPC)

High-speed PPC managing combined wind and solar output in real-time — active ramp rate control, reactive power compensation, and frequency response compliant with IEGC Grid Code.

Shared Evacuation Switchyard

Single common 33kV / 66kV / 132kV pooling substation and EHV transmission line serving both wind and solar plants — cutting grid evacuation CAPEX by 25–30%.

Wind Mast Assessment & Siting

12-month anemometer mast wind data analysis, Weibull distribution modeling, and CFD micro-siting optimization across wind corridors in Gujarat and Rajasthan.

SLDC Forecasting & Telemetry

Day-ahead and intra-day generation forecasting per CERC DSM regulations, paired with IEC 60870-5-104 real-time telemetry to the State Load Dispatch Centre (SLDC).

Our Process

How a Hybrid Project Comes Together

1

Wind & Solar Resource Study

Wind mast data analysis, solar GHI mapping, land topography survey, and combined energy yield simulation to determine the optimal wind-to-solar capacity ratio.

2

Engineering Design & Layout

WTG micro-siting, inter-row solar array layout, shared cable trenching design, PSS single-line diagram, and PPC architecture specification.

3

Parallel Construction

WTG foundations and solar pile driving happen simultaneously. Tower erection runs while solar module mounting is in progress. Substation construction starts early to avoid being on the critical path.

4

Integration & Grid Sync

PPC commissioning, combined plant testing under all operating conditions, protection relay coordination, CEIG approval, SLDC registration, and final grid synchronization.

Technical Specifications

Wind-Solar Hybrid Engineering Parameters

Combined generation metrics, wind turbine parameters, and shared grid evacuation standards.

Hybrid Generation & Controller Specifications
High CUF Profile
Technical Parameter Engineering Specification Applicable Standard
WTG Capacity Rating 2.1 MW to 4.2 MW per Turbine (Geared / DFIG / Direct Drive) IEC 61400-1 Class I/II/III
Solar PV Array Layout Inter-Row Ground PV Arrays with Shadow-Clearance Spacing Bifacial TOPCon Compatible
Capacity Utilization (CUF) 42% to 48%+ Combined Annual CUF (Round-The-Clock Profile) CERC / MNRE Hybrid Policy
Hybrid Power Controller High-Speed PPC with Real-Time Wind/Solar Ramp Rate Control IEC 61400-25 Telemetry
Shared Evacuation PSS Common 33kV / 66kV / 132kV Pooling Switchyard & Transformer CEA / STU Grid Code
Grid Code Compliance Low Voltage Ride Through (LVRT), Fast Reactive Power Response IEGC / CERC Compliant
Forecasting & Scheduling Integrated Wind-Solar Day-Ahead & Intra-Day Forecasting Feed SLDC Open Access Standards
Why Vishwa Powertech

Why Choose Us for Hybrid EPC

Single-contract accountability for wind, solar, and grid substation engineering.

Both Technologies Under One Contract

No finger-pointing between wind and solar sub-contractors. We manage WTG erection, solar array layout, and PPC integration under one turnkey EPC contract.

In-House Shared Substation Engineering

The shared pooling substation is the heart of a hybrid plant. We build it in-house — from power transformer foundation to protection relay panels.

Real Wind Corridor Field Experience

We've executed projects across Kutch, Jaisalmer, and high-wind corridors. We know ground logistics, soil conditions, and state load dispatch scheduling.

Strict IEGC Grid Code Compliance

Our PPC commissioning guarantees compliance with ramp rate limits, reactive power compensation, LVRT testing, and forecasting accuracy.

48%
Max CUF Achieved
30%
CAPEX Evacuation Savings
4.2 MW
Largest WTG Installed
24/7
Round-The-Clock Power
Frequently Asked Questions

Common Questions About Wind-Solar Hybrid

Higher capacity utilization. Solar produces power for about 5–6 effective hours per day. Wind often picks up in the evening and night. Combining both on the same land and same grid connection gives you 18–20 hours of generation instead of 5–6, pushing the CUF from 18–20% (solar only) to 42–48% (hybrid). The economics are significantly better because you're using the same transmission infrastructure to evacuate nearly double the energy.
Not directly underneath — there's a turbine shadow zone and a safety exclusion area around each WTG foundation. Solar arrays are placed in the inter-turbine corridors with enough spacing (typically 3–5 rotor diameters apart) so that turbine shadows don't fall on the panels during peak sun hours. Our layout engineers optimize this during the design phase using shadow simulation software.
No, that's the whole point of hybrid. Both wind and solar feed into the same pooling substation and evacuate through a single transmission line. You apply for a single connectivity agreement with the DISCOM/STU. The only additional requirement is a Hybrid Power Plant Controller that manages the combined output and ensures grid code compliance.
The PPC is basically the brain of the hybrid plant. It monitors real-time output from both wind and solar, controls the combined power flow to the grid, manages ramp rates (so you don't suddenly dump or withdraw large amounts of power), and handles reactive power compensation. It's mandatory for grid code compliance under CERC/IEGC regulations. Without it, the SLDC won't allow you to synchronize.
We work with 2.1 MW to 4.2 MW class WTGs from established OEMs. The turbine selection depends on your wind data — average wind speed, turbulence intensity, and wind shear at hub height. Higher capacity turbines (3.x MW and above) are more cost-effective per MW but need stronger foundations and taller towers, so the soil conditions and logistics also play a role in selection.
Partner With Engineering Experts

Have a Wind Corridor Site? Let's Go Hybrid.

Share your wind mast data and land details. Our team will run a preliminary hybrid feasibility study with estimated CUF, energy yield, and project cost.

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