Solar ROI,
Demystified.
A deterministic feasibility engine built for the Indian grid. Structured financial modelling with MNRE-aligned subsidy logic — fast, transparent, actionable.
Financial Intelligence
Get precise payback periods, IRR, and NPV calculations customized to your state's grid tariffs.
Subsidy Intelligence
Applies PM Surya Ghar subsidy rules based on MNRE guidelines for eligibility estimates.
Explainable AI Insights
Complex tier-based tariffs broken down into readable, actionable language.
Rooftop & Generation Intelligence
Estimate viable system size, expected generation, and roof-fit potential before a physical site visit.
From guesswork to solar clarity.
Zenith turns bills, roof details, tariffs, and subsidy rules into clear feasibility, savings, and payback insights for Indian rooftop solar.
The Old Way
- ✗ Manual site visits before basic feasibility is clear.
- ✗ Quotes that make system size, costs, and savings hard to compare.
- ✗ Subsidy rules and state tariffs scattered across confusing sources.
The Zenith Way
- Data-driven feasibility based on usage, location, and roof inputs.
- Clear cost, savings, payback, and 25-year projection logic.
- MNRE-aligned subsidy estimates with state tariff and net-metering context.
Intelligent Solar Decision Layers
From feasibility scoring to subsidy optimization — everything required to deploy rooftop solar intelligently.

1. The Payback Pulse
The Payback Pulse turns a messy electricity bill into a clear solar decision. Add your location, usage, or bill details, and Zenith models system size, generation, monthly savings, and payback using tariff-aware financial logic. Instead of vague promises, you get a grounded answer: how fast solar pays back, how much it can save, and whether the numbers actually work for your roof.
The Subsidy Scout
The Subsidy Scout makes government solar support easier to understand. Zenith checks your inputs against PM Surya Ghar and MNRE-aligned subsidy logic, estimates the likely benefit, and shows how it changes your net installation cost. No hunting through scattered rules; just a clearer path from eligibility to real savings.


The 20-Year Vision
The 20-Year Vision shows what rooftop solar looks like beyond the first quote. Zenith projects long-term savings across rising electricity prices, system performance, maintenance assumptions, and cash flow over time. It turns decades of solar economics into a clear view of payback, returns, and the financial upside of owning your own power.
The Photon Hunter
The Photon Hunter gives every rooftop a sharper solar read. Upload a quick roof video, and Zenith studies visible area, shading, orientation, and layout constraints to spot where panels have the strongest potential. It turns a simple rooftop scan into a practical preview of fit, generation capacity, and what deserves a closer site visit.


The Grid Guardian
The Grid Guardian brings order to shared solar energy. Zenith models production, demand, and surplus power across a simulated community microgrid, then uses optimization logic to identify more efficient ways to allocate energy. It explores how shared solar systems could reduce waste, improve local resilience, and get more value from every unit generated.
A Dashboard built for clarity.
A sample feasibility snapshot showing how Zenith translates bill, roof, tariff, and subsidy inputs into clear solar decisions.
Payback Period
Zenith estimates this setup could recover its net cost in 3.2 years, mainly through monthly bill reduction and subsidy-adjusted upfront cost.
Early Feedback on Zenith
Perspectives from homeowners, energy professionals, and installer workflows.
"Zenith makes the solar decision feel much clearer by showing payback, subsidy impact, and savings in one place."
Homeowner Perspective
Early prototype feedback
"The bill-to-feasibility flow could reduce the confusion homeowners face before speaking with installers."
Energy Consultant Perspective
Early prototype feedback
"Subsidy and tariff explanations are useful because most residential customers struggle to understand the real net cost."
EPC Workflow Perspective
Early prototype feedback
"A structured report would make it easier for installers to explain system sizing and financial outcomes to leads."
Installer Perspective
Early prototype feedback
Built for Real Solar Decisions.
Starting with homeowner feasibility today, with installer workflows designed as the next layer.
Homeowner Planning Toolkit
Designed for Indian households evaluating rooftop solar before speaking to installers.
No credit card. No sales pressure.
- Feasibility Score with ROI & Payback Analysis
- PM Surya Ghar Subsidy Eligibility & Slab Estimate
- 25-Year Savings & Electricity Inflation Projection
- Basic Rooftop Size & Generation Estimation
EPC & Installer Intelligence Suite
Built for solar businesses closing residential rooftop projects in India.
Planned for installer and EPC workflows.
- Client-Ready White-Labeled Proposal PDF
- Advanced IRR, NPV & Cashflow Modelling
- Lead Export & CRM-Ready Customer Reports
- Rooftop Layout & System Configuration Summary
- Priority Policy & Technical Updates