Renewable
Power Solutions
BARREL's core and primary mission — delivering world-class renewable energy solutions across Solar (Ground Mount, Rooftop, Floating), Wind (Onshore & Offshore), and Solar-Wind Hybrid systems. Turnkey. Plug & Play. Concept to Commissioning. Backed by 5,000 MW of projects currently in planning with STU and CTU.
BARREL's Active Project Pipeline — 5,000 MW
2,500 MW with State Transmission Utility (STU) · 2,500 MW with Central Transmission Utility (CTU) — Each project: 1,500 MW Solar + 1,000 MW Wind
Four Technologies. One Integrated Partner.
BARREL's renewable portfolio spans every proven clean generation technology — enabling us to design the optimal energy mix for any site, any grid requirement, and any project scale. From ground-mount solar to offshore wind, we deliver it all under one turnkey contract.
Solar Power — Ground, Rooftop & Floating
Utility-scale ground mount, commercial rooftop, and innovative floating solar on reservoirs and water bodies — all delivered as full turnkey EPC with plug & play power evacuation.
100 kW → 1,500 MW+ per project
Wind Power — Onshore & Offshore
Onshore wind farms across India's wind corridors and offshore wind in coastal waters — complete with wind resource assessment, WTG supply, civil works, and grid integration.
1 MW → 1,000 MW+ per project
Floating Solar — Reservoirs & Offshore
Solar panels mounted on floating platforms on reservoirs, lakes, and coastal waters — eliminating land use, reducing water evaporation, and improving panel efficiency through natural cooling.
1 MW → 500 MW+ per water body
Solar-Wind Hybrid — Including Floating-Wind
Co-located solar and wind generation sharing common grid infrastructure — maximising capacity utilisation, smoothing generation profiles, and delivering the most cost-effective power per unit of evacuation capacity.
500 MW → 2,500 MW hybrid projects5,000 MW — Currently in Planning
BARREL is currently developing two landmark renewable energy programmes — one with the State Transmission Utility (STU) and one with the Central Transmission Utility (CTU) — each a 2,500 MW solar-wind hybrid portfolio delivering clean power at scale.
State Grid Programme
Evacuation through State Transmission Utility infrastructure. BARREL delivers complete plug & play power evacuation — substation, lines, metering, and grid code compliance — as part of the turnkey scope.
National Grid Programme
Evacuation through PGCIL / Central Transmission Utility infrastructure. Inter-state transmission system (ISTS) connectivity with open access and long-term PPA arrangements facilitated by BARREL.
Ground Mount. Rooftop. Floating Solar.
BARREL designs and delivers solar power plants across all deployment categories — from small commercial rooftop systems to gigawatt-scale ground mount parks and innovative floating solar installations on reservoirs, lakes, and coastal water bodies.
Every solar project is executed as a complete turnkey — covering site assessment, solar resource analysis, panel and inverter selection, structural design, civil works, AC/DC cabling, inverter stations, pooling substations, and full plug & play power evacuation to the grid.
- Mono-PERC, Bifacial, TOPCon and HJT module technology selection
- Fixed tilt, single-axis tracker (SAT) and dual-axis tracker systems
- String inverters, central inverters and in-house inverter manufacturing
- DC string cabling, AC cabling, earthing and lightning protection
- Inverter stations, pooling substations and step-up transformer design
- In-house module manufacturing or strategic import sourcing
- Floating solar pontoon systems — HDPE float, mooring, and anchoring
- O-ring cable management and waterproof junction boxes for floating systems
Multi-MW to GW-scale solar parks on open land with tracker or fixed-tilt structure systems.
Commercial, industrial and institutional rooftop solar with net metering and captive arrangements.
Reservoir and lake-based floating solar — land-free, evaporation-reducing, efficiency-boosting.
Elevated solar panels over farmland — dual revenue for farmers, zero land displacement.
Onshore & Offshore Wind.
BARREL delivers complete wind energy projects — from wind resource assessment and turbine siting through to civil works, WTG erection, electrical systems, and full grid integration. Both onshore across India's proven wind corridors and offshore in India's coastal waters.
Our wind projects are designed for maximum annual energy production (AEP) — with micro-siting optimisation, wake loss minimisation, and integration with solar in hybrid configurations that maximise the value of shared evacuation infrastructure.
- Wind resource assessment — mast data analysis, satellite data, and WAsP / WindPRO modelling
- WTG selection — 2 MW to 5 MW+ onshore turbines; 8 MW+ offshore turbines
- Micro-siting, wake modelling, and turbine layout optimisation
- WTG foundation design — gravity base (onshore), monopile/jacket (offshore)
- Internal wind farm road network and hard-standing construction
- Medium voltage collector cable network design and installation
- Wind farm substation, step-up transformer and export cable
- Offshore: inter-array cables, offshore substation and onshore landing
- WTG erection — crane selection, nacelle, rotor and blade installation
- SCADA commissioning, performance testing and grid code compliance
Wind farms across Rajasthan, Gujarat, Tamil Nadu, Karnataka, Andhra Pradesh, and Maharashtra wind corridors.
Offshore wind in India's exclusive economic zone — Gujarat and Tamil Nadu coastlines, floating and fixed-bottom.
Solar on Water. No Land. No Compromise.
Floating solar is one of the fastest-growing segments of the global solar industry — and for very good reason. India alone has over 18,000 km² of reservoir surface area that can support floating solar installations, representing hundreds of gigawatts of untapped potential without consuming a single square metre of agricultural or forest land.
BARREL designs, supplies, and installs complete floating solar systems — from pontoon platform engineering through to mooring, anchoring, waterproof electrical systems, and grid connection. We also develop innovative hybrid floating solar + offshore wind configurations for coastal and large water body sites.
- Bathymetric survey, water quality assessment, and wave analysis
- HDPE pontoon float design, engineering, and manufacturing or sourcing
- Mooring system design — anchor type selection, chain/rope, and tension analysis
- Bifacial panel mounting on floating structures for dual-side generation
- Waterproof DC junction boxes, floating cable management systems
- Floating inverter stations or onshore central inverter arrangements
- Underwater or floating AC cable routing to onshore substation
- Wave and wind load structural analysis for platform stability
- Hybrid floating solar + wind turbine co-location engineering
- Environmental impact management — water oxygenation monitoring
Best of Both. Smarter Together.
Solar and wind are natural complements — solar peaks midday while wind often peaks in the morning, evening, and night. Co-locating both technologies on the same site with shared grid infrastructure produces a flatter, more consistent generation profile that is far more valuable to the grid than either technology alone.
BARREL's hybrid projects — currently planned at 2,500 MW each for STU and CTU — are designed with 1,500 MW solar and 1,000 MW wind sharing common pooling substations, transmission lines, and metering infrastructure. This dramatically reduces the cost per MW of evacuation and maximises the utilisation of the grid connection.
- Integrated site selection — overlapping solar irradiance and wind resource mapping
- Shared pooling substation and step-up transformer design for both technologies
- Common transmission line and evacuation infrastructure — one line, two sources
- Complementary generation profile optimisation — maximise CUF and PLF
- Floating solar + offshore wind hybrid for coastal and large reservoir sites
- Battery Energy Storage System (BESS) integration for round-the-clock supply
- Integrated SCADA for combined solar-wind-storage plant monitoring
- ISTS open access or STU/CTU PPA structuring for hybrid projects
1,500 MW per project — ground mount + floating solar in optimal ratio by site.
1,000 MW per project — onshore or hybrid offshore wind by location.
One substation, one transmission line, one metering system — maximum efficiency.
Battery storage integration for round-the-clock renewable power supply.
Complete Project Lifecycle
Every BARREL renewable project follows a rigorous, integrated methodology — covering every phase from resource assessment and regulatory approvals through construction, grid connection, commissioning, and lifetime O&M.
Plug & Play Power Evacuation Infrastructure
One of BARREL's most distinctive capabilities — our Plug & Play Power Evacuation model. Rather than treating grid connection as an afterthought, BARREL engineers and delivers the complete power evacuation pathway as an integrated part of every renewable energy project.
From the module string or wind turbine terminal — through inverter stations, pooling substations, step-up transformers, transmission lines, and grid injection switchyard — BARREL delivers it all as a single, plug-and-play ready infrastructure package. The developer or client simply connects and switches on.
- DC to AC collection network fully designed and installed by BARREL
- Inverter stations with HT bus and protection systems
- Pooling substation — civil, transformer, switchgear, and metering
- Step-up transformer to grid voltage (33kV / 66kV / 132kV / 220kV / 400kV)
- Transmission line survey, design, tower erection, and stringing
- Grid injection switchyard — bus, breaker, and protection systems
- ISTS or STU/CTU grid code compliance studies and documentation
- Synchronisation, testing, and commissioning at grid injection point
- Open access application, CTU/STU scheduling, and metering arrangement
Power Flow — Plug & Play Chain
Solar Modules / Wind Turbines
Generation source — panels, trackers, WTGs, or floating solar pontoons
Inverter Stations & DC/AC Collection
String / central inverters, HT collection cables and busbars
Pooling Substation
HT switchgear, protection relays, metering, and step-up transformer
Transmission Line
ACSR/AAAC transmission line — towers, stringing, and protection
Grid Injection Switchyard
CTU / STU / DISCOM interconnection point — fully commissioned
SCADA & Remote Monitoring
24/7 real-time plant performance monitoring and remote control
All Services. One Partner.
Every service required to take a renewable energy project from concept to commissioning — and from commissioning to 25 years of optimised operation — delivered by BARREL as a single accountable partner.
Resource Assessment & Feasibility
Solar irradiance analysis (GHI/DNI), wind resource assessment, P50/P90 energy yield modelling, and full techno-economic feasibility with DPR preparation.
- Solar: NASA/PVGIS/satellite irradiance data + shadow analysis
- Wind: mast data, WindPRO/WAsP modelling, AEP calculation
- Floating: bathymetric survey, wave and wind load analysis
- DPR preparation to MNRE / lender standards
Regulatory Approvals & Clearances
Complete management of all statutory approvals — environmental, land, grid, and sectoral — across Central and State regulatory bodies. Full liaison handled by BARREL.
- MoEF environmental clearance and SEIAA approvals
- CEA concurrence, CERC/SERC registration
- CTU/STU grid connectivity and open access approvals
- Land acquisition, conversion, and revenue clearances
Design & Engineering
Complete electrical, civil, and structural engineering — from module mounting structures and WTG foundations to floating platform design and substation layout.
- PVsyst / PVsol modelling for solar yield optimisation
- Single-line diagram, cable sizing, and protection coordination
- Structural design for ground mount, tracker, and floating systems
- WTG micrositing and wake loss optimisation
Procurement & Supply Chain
Global and domestic procurement of all project equipment — with in-house manufacturing capability for modules, inverters, structures, cables, and trackers where applicable.
- Solar modules — in-house or Tier-1 OEM sourcing
- Wind turbines — global OEM procurement and supply
- Inverters / UPS — in-house manufacturing or import
- Structures, trackers, cables, transformers — own or sourced
Civil & Construction (EPC)
Complete civil, mechanical, and electrical construction across all project components — executed to international quality standards with BARREL QA/QC supervision at every milestone.
- Module mounting structure installation — fixed and tracker
- WTG foundation, erection, nacelle, and blade installation
- Floating platform assembly and mooring installation
- Substation civil, transformer erection, and switchyard construction
O&M, AMC & Monitoring
Complete post-commissioning operations — preventive and predictive maintenance, 24/7 SCADA monitoring, performance optimisation, and tailored AMC packages for long-term plant health.
- Module cleaning, inspection, and thermal imaging
- Inverter, tracker, and WTG preventive maintenance
- 24/7 SCADA remote monitoring and fault response
- Annual performance audit and energy loss analysis
From Plant to Grid — Intelligently Managed
BARREL's renewable energy plants don't just generate power — they generate data. Our integrated SCADA and monitoring platform provides real-time visibility across every solar module string, every wind turbine, and every point in the evacuation chain — enabling smart, data-driven operations that maximise generation and minimise downtime.
Every plant is connected. Every asset is monitored. Every deviation from optimal performance is detected, flagged, and resolved — automatically where possible, or by our 24/7 operations team remotely.
Solar Plant SCADA
String-level monitoring, irradiance sensors, inverter performance, and module thermal analytics — real-time and historical.
Wind Turbine SCADA
Individual WTG performance, wind speed, yaw position, vibration, and availability monitoring — all turbines, all the time.
Floating Solar Monitoring
Platform stability sensors, mooring load monitoring, water level tracking, and panel tilt/orientation data for floating systems.
Grid Performance Analytics
Generation vs. schedule tracking, reactive power management, grid code compliance monitoring, and revenue meter data management.
Our Value Proposition
Six powerful reasons why BARREL is the preferred renewable energy EPC, O&M, and long-term operations partner for developers, investors, and governments across India and global markets.
Full-Spectrum Technology
Solar, wind, floating solar, offshore, and hybrid — all delivered by one partner with deep capability across every renewable technology.
Plug & Play Evacuation
Complete power evacuation infrastructure from module to grid injection point — delivered ready to energise, with no gaps in the chain.
Vertical Integration
In-house manufacturing of modules, inverters, structures, and cables — delivering cost, quality, and timeline advantages unavailable elsewhere.
Zero Approval Hassle
BARREL manages every regulatory approval — MoEF, CEA, CERC, SERC, CTU, STU — so developers focus on the project, not the paperwork.
GW-Scale Capability
Proven planning for 5,000 MW across STU and CTU programmes — with the systems, supply chain, and EPC capacity to deliver at scale.
ESG & Social Impact
Every project embeds BARREL's 26% Manee Foundation equity model — ensuring community benefit is built into every MW of clean energy delivered.
Power the Future with BARREL
Whether you are planning a 1 MW rooftop system, a 500 MW solar park, a 1,000 MW wind farm, or a 2,500 MW solar-wind hybrid programme — BARREL has the technology, the team, the supply chain, and the regulatory expertise to deliver. Let's build the clean energy future together.