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Detailed installation case study, challenges, and verified generation yields of a 5 kW solar array.
Project Core Statistics
- System Capacity: 5 kW
- Annual Generation: 7,100 Units (kWh)
- Annual Financial Savings: ₹60,350
- ROI Payback Period: 4.5 Years
- Carbon Offset: 5.6 Tonnes / year
Project Details: 5kW Residential Off-Grid Solar in Villivakkam
This case study documents the technical engineering design and net-metering integration executed by IKIGAI GLOBAL for Mrs./Mr. Rajasekar K. in Villivakkam, Chennai. The project serves as an active benchmark for domestic systems in the local distribution circle.
1. Operational Challenge
Frequent local power cuts and low voltage fluctuations damaging household appliances.
2. Engineered Solution
Designed a heavy-duty off-grid system with tubular battery storage, isolating the household entirely from TNEB voltage drops.
3. Bill of Materials (BoM) & Specifications
| Component | Specification Details |
|---|---|
| Solar Modules | 10 x 500W Mono PERC Modules |
| Solar Inverter | 5kVA Off-Grid MPPT Inverter with 10kWh tubular battery bank |
| Mounting Structure | Anchor fast-fasteners and customized elevations GI profiles |
| Grid Connection | TANGEDCO Bidirectional Net-Metering Approval |
4. Financial Yield and Performance Audit
Since commissioning on 2026-02-05, the array has consistently yielded 4.1 kWh/kWp daily, aligning with our original PVSyst generation profiles. The client has recorded a 90% drop in active utility consumption fees, offsetting higher-slab charges.