Off-Site Solar Parks & Captive Power for Large Consumers
Scale beyond your rooftop with open access solar, captive power plants, and group captive models — paired with BESS for round-the-clock renewable energy across Maharashtra, Gujarat, Tamil Nadu, and Madhya Pradesh.
Utility-Scale Solar. Delivered to Your Meter.
Open access solar allows large electricity consumers to procure power from off-site solar parks and receive it through the state grid — without installing a single panel on their premises. For consumers with 1 MW+ demand, this is the most scalable and cost-effective pathway to renewable energy adoption.
Treflik Solar structures open access projects under three models — third-party PPA, captive, and group captive — each optimised for different ownership, taxation, and regulatory requirements. With integrated Battery Energy Storage Systems (BESS), we deliver dispatchable solar power that extends well beyond daylight hours.
Lower Energy Costs vs Grid
Open access solar tariffs are 30-40% below prevailing industrial grid tariffs, delivering immediate and sustained cost reduction on your electricity bill.
No Rooftop Required
Power is generated at a remote solar park and delivered via the state grid. No roof space, structural assessment, or on-site installation needed.
Scale Without Limits
Open access removes the physical constraints of rooftop solar. Scale from 1 MW to 50 MW+ to match your full electricity demand across multiple facilities.
BESS Integration
Battery Energy Storage Systems paired with open access solar enable round-the-clock renewable supply, peak shaving, and grid independence.
Who Benefits from Open Access Solar
Open access and captive solar models are designed for high-demand consumers who need scale, flexibility, and cost certainty.
Three Pathways to Off-Site Solar
Each model offers distinct advantages in ownership structure, tax treatment, and regulatory charge exemptions.
Third-Party PPA
Treflik develops, owns, and operates the solar park. You purchase power under a long-term Power Purchase Agreement at a fixed tariff below grid rates. Zero capital expenditure, immediate savings, and full regulatory compliance managed by Treflik.
Captive Power Plant
Your company holds a 26%+ equity stake in the solar plant and consumes at least 51% of the generation — qualifying as a captive generating plant under the Electricity Act. This model eliminates cross-subsidy surcharge and additional surcharge, maximising per-unit savings.
Group Captive
Multiple consumers collectively hold 26% equity and consume 51% of generation. Ideal for industry associations, industrial estates, and SEZs where individual load may not justify a standalone captive plant. Treflik structures the SPV and manages all regulatory filings.
Battery Storage for Round-the-Clock Solar
Solar generation is inherently intermittent. Battery Energy Storage Systems (BESS) eliminate this limitation by storing excess solar energy during peak generation and dispatching it during evening demand peaks, cloud cover, or grid instability.
For open access consumers, BESS integration transforms solar from a daytime-only source into a firm, dispatchable power supply. This enables peak shaving to reduce maximum demand charges, time-of-day tariff arbitrage, and a pathway toward true grid independence. Treflik designs BESS capacity and dispatch strategy based on your specific load curve, tariff structure, and reliability requirements.
Peak Shaving
BESS discharges during demand peaks to reduce your maximum demand charges — one of the largest components of industrial tariffs.
ToD Tariff Arbitrage
Store solar energy generated at low-cost hours and consume it during high-tariff evening slots for maximum financial benefit.
Power Quality & Backup
BESS provides seamless backup during grid outages and smooths voltage fluctuations, protecting critical industrial processes.
Modular Scalability
Start with a BESS capacity matched to your immediate needs and scale incrementally as your load grows or tariff structures evolve.
From Assessment to Commissioning
A four-phase process covering regulatory navigation, project development, EPC execution, and long-term performance management.
Demand & Regulatory Assessment
We analyse your load profile, contracted demand, and state-specific open access regulations to determine the optimal capacity, tariff structure, and project timeline.
Project Development & PPA Execution
Treflik identifies the solar park site, secures land and grid connectivity, structures the SPV (for captive/group captive), and executes the PPA with transparent tariff terms.
Construction & Commissioning
EPC execution with Tier-1 modules and string inverters, followed by SLDC registration, grid synchronisation, and all DISCOM approvals for open access wheeling.
O&M, BESS & Performance Management
Ongoing plant monitoring, predictive maintenance, BESS dispatch optimisation, and monthly energy accounting with transparent generation and wheeling reports.
Open Access Solar Economics
Key performance indicators for open access and captive solar projects across our operating states.
Typical reduction in per-unit electricity cost under captive and group captive models with cross-subsidy surcharge exemption.
Open access eligibility threshold in most operating states. Group captive structures enable aggregation for smaller individual loads.
Long-term Power Purchase Agreements with fixed or escalation-linked tariffs, providing cost certainty over the project lifetime.
Certifications & Accreditations
Open Access Solar Questions Answered
The minimum threshold varies by state. In Maharashtra, open access is available for consumers with a contracted demand of 1 MW or above. Gujarat and Madhya Pradesh have similar thresholds. For loads below 1 MW, a group captive structure allows multiple consumers to aggregate demand and collectively access open access benefits. Treflik evaluates your load profile and recommends the optimal structure.
Battery Energy Storage Systems (BESS) are co-located at the solar park or at the consumer end. During peak solar generation hours, excess power charges the battery. During evening peaks, cloud cover, or grid outages, the BESS discharges stored energy. This enables round-the-clock renewable supply, reduces maximum demand charges, and provides grid stability. Treflik designs the BESS capacity based on your load curve and time-of-day tariff structure to maximise financial returns.
Open access consumers pay wheeling charges, transmission charges, and — for third-party PPA structures — cross-subsidy surcharge and additional surcharge. Under captive and group captive models, cross-subsidy surcharge and additional surcharge are exempt, significantly improving net savings. Treflik provides a complete landed-cost analysis comparing your current grid tariff against all-inclusive open access costs for your specific state and DISCOM.
Treflik currently develops and manages open access solar projects in Maharashtra, Gujarat, Tamil Nadu, and Madhya Pradesh. These states offer favourable open access policies, strong solar irradiance, and well-established regulatory frameworks. We handle all state-specific regulatory filings including SLDC registration, wheeling agreements, and banking arrangements.
Scale your renewable energy with open access solar
Speak with our open access team to evaluate captive, group captive, and third-party PPA structures for your organisation.