Selects a roof area on the satellite map, and the system automatically calculates the surface and shows solar panel fitting recommendations.
9 Trina Solar panels selected — the system displays total power, weight, and material cost based on the chosen model.
Advanced settings activated — user can define monthly bill, system efficiency, panel degradation, and energy inflation rate.
Location search feature showing auto-suggested addresses and live panel configuration mapped onto the user's roof.
Financial analysis panel with annual production, return on investment (ROI), 25-year savings, and CO₂ reduction impact.
Technical tuning options for installation cost, AC/DC conversion rate, and average daily sun hours per region.
Dashboard view showing selected areas, total system power, weight, and cost across all sections.

QuantoRenderia.com

🌞 Elevator Pitch

QuantoRenderia.com is an intelligent solar calculator that lets anyone — from homeowners to solar companies — visually design solar installations, estimate savings, and generate a full project proposal in minutes using geolocation, satellite data, and panel databases.

🧠 Problem

Adopting solar energy is complex. People and companies struggle to know:

If a roof is viable
How many panels can fit
The accurate ROI and energy yield
The full cost of equipment and installation
Meanwhile, solar companies spend hours creating custom proposals manually, delaying sales and increasing overhead.

🚀 Solution

QuantoRenderia.com transforms the solar quoting process with automation and intelligence:

🌍 Automatic geolocation (Google Maps API)
🏠 Draw multiple roof sections directly on the satellite view
📐 Real-time surface measurement (m²)
⚙️ Simulate different panel models from a dynamic Supabase database
🔋 Live fit calculation: number of panels, weight, space used/left
💡 Get detailed generation projections: monthly, annual, 25-year
💰 Full budget preview: material, installation, taxes, depreciation
📄 Instant PDF proposal with roof layout, components, costs, and charts
🧮 Advanced controls: sunlight hours, AC/DC conversion, panel loss, etc.
☀️ Powered by Google Solar API for precision irradiance data

🔥 Why It Matters

For Homeowners & Businesses:

Empowers decision-making with clear, visual data
Removes friction and confusion around solar investment
Allows fully customized simulations without technical knowledge

For Solar Companies:

Automates manual quoting work
Saves hours per project
Boosts sales with polished PDF proposals
Enhances professionalism and customer trust

💡 Technology Stack

Frontend: React + TypeScript
Mapping: Google Maps API + Solar API
Database: Supabase (Real-time panel models, metadata, pricing)
Backend: Node.js (Calculations, PDF generation)
Hosting: Vercel / AWS
Coming Soon: LLM-powered assistant to auto-configure ideal setup

💰 Business Model

🏠 Freemium for homeowners (limit simulations, upgrade for PDF export)
🏢 B2B SaaS for solar companies:
- White-label estimator tool
- Branded PDF generation
- CRM and lead tracking
🔗 Affiliate revenue from equipment partners and installers
🧩 Future API plans for integration with real estate, energy, and gov platforms

📈 Traction & Milestones

🔧 MVP 80% ready with live geolocation, drawing tools, simulation engine
📦 Supabase-powered panel catalog fully integrated
🧪 Usability tests with solar professionals underway
📄 PDF proposal engine in development
🌎 Launching first in Brazil, then LATAM and global

🏁 The Ask

We are currently seeking:

💰 Investment to scale infrastructure and finalize PDF automation
🔗 Strategic partnerships with solar providers and equipment suppliers
🚀 Support to scale B2B acquisition and go-to-market

🌍 Our Vision

To become the standard quoting platform for solar projects on Brazil — empowering people and companies to design, simulate, and install solar energy faster and smarter than ever.

☀️ Draw your roof. Simulate your system. Print your future.

💡 Inspiration

The inspiration behind QuantoRenderia.com came from the overly complex and manual process of getting a solar energy quote.

In traditional workflows, solar salespeople had to physically visit the property, use a drone to take aerial photos, bring the images back to the office, upload them into design software, manually draw the roof layout, run calculations, and finally generate a PDF proposal. This process could take days, involved multiple tools, and required technical expertise — all before the customer even saw an estimate.

We believed this could be done faster, smarter, and entirely online — allowing both end-users and solar companies to simulate projects with just a few clicks, using real-time geolocation and satellite data.

QuantoRenderia.com was built to eliminate friction, save time, and make clean energy adoption more accessible and scalable.

⚙️ What It Does

Detects your location automatically via Google Maps
Allows you to draw and label multiple roof sections
Calculates usable area and panel fitting in real time
Suggests available solar panel models with specs
Estimates production, costs, payback, and ROI
Generates a printable, professional PDF proposal

🏗️ How We Built It

Google Maps and Solar APIs for location, drawing, and irradiance data
Supabase for real-time panel database and user data
React for the frontend interface
Node.js backend for some calculations and futures integrations with CRM
Modular architecture for fast feature iteration

🧱 Challenges We Ran Into

Calculating panel fitting while accounting for multiple roof sections and gaps
Rendering accurate measurements from freehand-drawn shapes
Integrating Google Solar API with custom area mappings
Building a flexible system that works for both end-users and B2B clients

🏆 Accomplishments That We're Proud Of

Drawing tool with real-time m² calculation and section management
Dynamic database of solar panels with specs and filters
Accurate cost and ROI simulation using real solar data
Smooth UX for both consumers and professionals
PDF proposal generator (in progress) that reflects real design + budget

🎓 What We Learned

Accurate geospatial UX is challenging but game-changing
Solar energy ROI depends on many variables that users must control
Combining simplicity and technical depth creates real product value
Solar professionals want tools that reduce their quoting workload

🔮 What's Next for QuantoRenderia.com

Launch in Brazil and expand to LATAM markets
Finalize and release branded PDF export
Build user accounts, CRM features integrations and proposal history
Add LLM-powered agent to recommend best setups for each case and rooftop type
Monetize via SaaS plans for b2b, affiliate integrations and selling leads to companies