One comprehensive on-site visit by an experienced solar engineer. We examine mounting structures, electrical cabling, module degradation, and benchmark your plant against nearby peers with actionable cost-benefit solutions.
Asset Due Diligence
During the solar installation boom, speed often trumped craftsmanship. Undersized DC cables, missing spring washers, un-galvanized brackets, and poor stringing degrade quietly over 3 to 5 years until generation drops or hazards emerge.
Vibrations from Pune monsoon wind gusts loosen foundation anchor bolts and module clamps. If cold-galvanized spray was used instead of hot-dip galvanizing, mounting structures corrode from within, risking catastrophic roof detachment.
Undersized DC cables cause continuous resistive power losses and heat up dangerous amounts under midday summer currents. Unprotected cable trays cause UV embrittlement, cracked insulation, and dangerous ground leakage faults.
Micro-cracks, failed bypass diodes, or uneven cell shading turn photovoltaic cells into electrical resistors that heat past 100°C. Left undetected, hotspots cause permanent backsheet burning and string-wide generation loss.
Your plant might generate units every single day without throwing an inverter error code, and still lag 15% to 25% behind neighboring solar plants in identical sunlight conditions. You can't fix what you don't measure.
Comprehensive Checklist
Our engineer inspects your solar plant from the foundation bolts to the inverter firmware, documenting every finding with photographic evidence and measured instrument data.
Wind Resistance & Corrosion Protection
We measure zinc coating thickness (galvanization microns) on columns, rafters, and purlins. We inspect chemical anchor fasteners, check bolt torques with calibrated torque wrenches, and evaluate roof waterproofing penetration seals.
Conduits, Voltage Drop & Megger Testing
We inspect DC cable gauges to verify acceptable voltage drop (< 2%). We check UV conduit routing, inspect DCDB/ACDB rotary isolators and fuses, and perform megohmmeter insulation resistance tests to catch hidden ground faults.
Thermal Dissipation, SPDs & Trip Logs
We check inverter heat-sink clearance and fan ventilation, analyze internal event logs and historical error codes, verify Surge Protection Device (SPD) health, and evaluate operating conversion efficiency under live load.
Resistance < 5Ω & Life Safety
We test ground resistance at each earth pit using a 4-terminal digital earth tester. We inspect separate dedicated earthing paths for DC, AC, and lightning protection, and check copper/GI strip continuity.
Cost-Benefit Feasibility for Fixes
If your Generation Score is much lower compared to nearby plants in your pin code, we identify the root causes (shading, mismatch, wiring losses). We tell you if it can be fixed, and provide a comprehensive cost-benefit analysis detailing the repair cost versus the 5, 10, and 20-year financial returns.
Transparent Pricing
Transparent pricing combining a fixed deployment fee and a per-kW variable rate. SolarSaathi members enjoy substantial discounts on both components.
SolarSaathi Member Price applied. You save ₹600 on this audit.
Objective appraisal of structural, electrical, and generation health with itemized cost-benefit analysis.
Base fee ₹1,999 + ₹80/kW (5 kW) · SolarSaathi Member Price
Target Use Cases
Four situations where a professional engineering audit protects your capital.
If your Generation Score on Zenith shows your plant is producing fewer units than nearby rooftop plants in the same pin code, an audit uncovers the exact engineering bottlenecks and calculates whether fixing them pays for itself.
Before a housing society committee officially signs off on builder handovers or releases final payments to a solar EPC contractor, an independent audit verifies structural safety, cable gauges, and earthing compliance.
Purchasing a factory, bungalow, or commercial office with an existing solar plant? We evaluate remaining module lifespan, inverter wear, and quantify immediate capital expenditure needs before you close the deal.
Solar inverters commonly have 5-year warranties, and module workmanship warranties run 10 to 12 years. Auditing your system in Year 4 or Year 9 ensures failing parts are replaced under OEM warranty at zero cost to you.
The Deliverable
A clear, actionable engineering dossier uploaded straight to your Zenith dashboard.
Comprehensive PDF report detailing structural, electrical, module, and grounding observations with clear Red / Amber / Green safety ratings.
High-resolution closeups of structural joints, cable insulation, isolator terminals, and module condition so you can see exactly what the engineer saw.
Quantified breakdown of lost units, potential generation uplift, estimated repair costs, and 5-to-20 year projected financial returns.
Frequently Asked Questions
Clear answers on scope, peer comparison, cost-benefit feasibility, and pricing.
A Site Visit is an acute diagnostic callout; a Plant Audit is an exhaustive, proactive engineering evaluation.
You call a Site Visit when an inverter is tripping, an error code is flashing, or generation suddenly flatlines. You book a Plant Audit to evaluate the overall health, design, structural safety, and long-term durability of the entire installation.
Crucially, an audit is also recommended if your Generation Score is noticeably lower compared to nearby plants: we analyze why you are losing generation, determine if it can be fixed, and provide a detailed cost-benefit analysis.
Our engineer examines over 40 critical checkpoints across 5 main engineering areas:
Through Solabrix's Zenith platform, we compare your actual generation history against real rooftop solar plants in your exact pin code and capacity segment under the same solar irradiance conditions.
If your plant produces fewer units than its peers, the audit pinpoints the exact causes—such as localized shading, module mismatch, string design flaws, cable losses, or inverter clipping.
Yes, absolutely. Finding a problem is only half the battle; knowing whether it makes financial sense to fix it is what matters.
If the audit uncovers remediable bottlenecks (like string rewiring, tilt adjustment, module replacement, or cable upgrades), we calculate:
Plant Audit pricing has a transparent two-part structure:
For example, a 5 kW plant costs ₹2,399 for members versus ₹2,999 standard. A 50 kW system costs ₹5,999 for members versus ₹7,499 standard.
Currently, our on-ground physical audits are active in Bavdhan, Kothrud, Warje, Karvenagar, and Erandwane.
We are actively expanding our technician coverage across Pune. Note: SolarSaathi digital care and peer generation benchmarking is available across all of Pune.
Yes. SolarSaathi members save ₹500 on the fixed deployment fee (₹1,999 vs ₹2,499) and save ₹20 per kW on the capacity variable rate (₹80/kW vs ₹100/kW).
For residential rooftop systems (3 kW to 10 kW), the audit takes 2 to 3 hours. For larger housing society plants and commercial rooftops (25 kW to 100+ kW), inspections take 4 to 6 hours.
Yes. The Solabrix Plant Audit is an independent, third-party engineering appraisal. The dossier includes instrument readings, timestamped high-resolution photos, and references to MNRE and CEA compliance guidelines.
Housing societies and commercial owners regularly use our audit reports during builder handovers or to hold EPC installers accountable to their workmanship warranties.
You or a representative need to provide initial rooftop and electrical room access. You don't need to accompany the engineer during testing. Once completed, the engineer provides a brief verbal overview, and the complete audit report is uploaded to your Zenith account.
Protect your 25-year investment with an independent engineering evaluation and concrete ROI roadmap.