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🌟 Start Using Now: https://solarclose.pages.dev
The Solar Sales Tool That Respects Your Data.
Most solar software runs in the cloud, meaning they own your leads. SolarClose is different. It runs entirely on your iPad/Laptop.
SolarClose is open source software licensed under BSL 1.1.
- Privacy First: All data stays on your device. Zero data leaves your browser.
- Free Web Version: Try it at https://solarclose.pages.dev
- Open Source: View and modify the code under BSL 1.1 license
- Commercial Licensing: Available for companies with $1M+ revenue
📚 Documentation: Features | Calculations | PWA Setup | QR Handoff | Signatures
✅ 100% Offline Operation - Close deals in basements, rural areas, or anywhere without signal
✅ Instant ROI Calculations - Show 25-year savings in real-time. Zero loading screens
✅ Privacy Guaranteed - Your leads live on your device. We never see them
✅ Professional PDF Proposals - Generate branded client proposals and technical sales sheets
✅ Quick Copy Summary - One-click to copy formatted talking points for texting prospects
✅ Smart Lead Tracking - "Last Contacted" timestamps prevent duplicate visits
✅ Lead Search & Filter - Instantly find customers by name or address
✅ Show Mode - Full-screen theatrical presentation for client reveals
✅ Digital Signatures - Capture client and sales rep signatures
✅ Lead Notes - Store detailed notes and comments on each lead
💰 Monthly Payment Comparison - Old utility bill vs. Solar + Loan payment side-by-side
💰 25-Year Savings Projection - Total lifetime savings with visual timeline chart
💰 Break-Even Point (ROI) - Highlighted on timeline showing when system pays for itself
💰 Customizable Loan Terms - APR, term length, down payment, and dealer fees
💰 Inflation Modeling - 4% annual utility rate increase (customizable)
💰 Maintenance Costs - Optional $150/yr maintenance factor
💰 Inverter Replacement - Factored at Year 12 & 24 (customizable cost)
💰 Panel Degradation - 0.5% annual output decline built-in
⚡ System Sizing - Input system size in kW with automatic production estimates
⚡ Real Efficiency Derating - 80% derating (weather/shade/inverter loss)
⚡ Annual Production - kWh/year based on system size and location factors
⚡ Offset Percentage - Shows how much of electric bill is covered by solar
⚡ Environmental Impact - CO₂ offset and trees planted equivalent calculations
🌍 5 Complete Languages - English, Spanish, Italian, French, German
🌍 Localized PDFs - Client proposals in customer's native language
🌍 Currency Formatting - Automatic $/€ based on language
🌍 Date Formatting - US/EU styles (MM/DD/YYYY vs DD/MM/YYYY)
🌍 Per-Lead Language - Each customer remembers their language preference
🌍 Instant Switching - One-click language toggle in top-left corner
🎨 Glass-Morphism Design - Modern, professional interface that looks expensive
🎨 Animated Counters - Smooth number animations for savings displays
🎨 Progress Bars - Visual indicators for system offset and ROI
🎨 Confetti Celebrations - Trigger on high savings to create excitement
🎨 Show Mode - Full-screen theatrical presentation view for client reveals
🎨 Responsive Layout - Works perfectly on iPad, tablets, and laptops
🎨 Dark Mode Ready - Beautiful on any device in any lighting
💾 Auto-Save - Every input automatically saved to local storage 💾 JSON Backup/Restore - Export all leads to universal JSON format 💾 Import Leads - Restore from backup or migrate devices 💾 Delete Leads - Individual lead deletion with confirmation 💾 QR Code Handoff - Generate QR codes linking to SolarClose website 💾 Digital Signatures - Capture client signatures with touch/mouse (native Canvas, no libraries) 💾 No Cloud Dependency - All data stays on your device forever
📄 Dual PDF Generation - Client proposal + Technical sales sheet
📄 Branded Design - Professional layout with your company info
📄 Multi-Language PDFs - Proposals in customer's language
📄 Detailed Breakdown - Monthly costs, savings, and 25-year projections
📄 Environmental Stats - CO₂ and tree equivalents in PDFs
📄 Instant Download - No server processing, generated in-browser
📲 Install to Home Screen - Works like a native app
📲 Offline-First Architecture - Full functionality without internet
📲 Fast Loading - Instant startup, no server delays
📲 Cross-Platform - iOS, Android, Windows, macOS, Linux
📲 Auto-Updates - Latest features delivered automatically
Type in the name and address. Everything auto-saves to your device's local storage.
Input system size (kW), total cost, and current electric bill.
Instantly display:
- Monthly payment swap (Old Bill vs. Solar + Loan)
- 25-Year Total Savings with visual chart
- Break-even point (ROI) highlighted on timeline
- Environmental impact (CO₂ offset, trees planted equivalent)
- One-click "Copy Summary" to text prospects
Click "🎭 Show" to:
- Theatrical View: Full-screen presentation mode with big numbers
- Client Reveal: Turn your device around and say "Here is your future"
- Distraction-Free: Hides all inputs, shows only key results
- Press ESC to Exit: Quick return to editing mode
Click "Export PDF" to generate:
- Client Proposal: A clean, branded PDF for the homeowner (in their language)
- Sales Sheet: A detailed technical breakdown for your records
Or click "📱 QR Code" to:
- Instant Handoff: Generate a QR code linking to SolarClose website
- Mobile-Friendly: Client scans to visit the site on their device
- Easy Access: Quick way to share the calculator with prospects
- Last Contacted timestamps on every lead
- Never knock the same door twice by mistake
- Prioritize follow-ups at a glance
- Door-to-Door Reps: No signal? No problem. Works 100% offline
- Multi-Language Markets: Serve Spanish, Italian, French, and German customers with native-language proposals
- Privacy-Conscious Teams: Stop feeding your lead data to SaaS aggregators
- Speed Closers: When you don't have 15 minutes to wait for a complex CAD design
- Text-First Closers: Copy formatted savings to text prospects instantly
We don't hide our math. We use realistic, conservative numbers to build trust:
- Real Efficiency: 80% derating (accounts for weather/shade/inverter loss)
- Degradation: 0.5% annual panel output decline
- Maintenance Buffer: Optional $150/yr maintenance factor
- Inverter Replacement: Factored at Year 12 & 24 (customizable)
- Inflation: 4% annual utility rate increase (customizable)
All calculations use industry-standard formulas and conservative assumptions.
Fully localized in 5 languages - Not just the UI, but everything:
- 🇺🇸 English - Complete interface, PDFs, and calculations
- 🇪🇸 Spanish (Español) - Perfect for US Hispanic markets and Latin America
- 🇮🇹 Italian (Italiano) - Serve Italian-speaking customers
- 🇫🇷 French (Français) - For French-speaking markets
- 🇩🇪 German (Deutsch) - Complete German localization
What's translated:
- ✅ Entire user interface
- ✅ PDF proposals (client-facing)
- ✅ PDF sales sheets (internal)
- ✅ All form labels and buttons
- ✅ Error messages and tooltips
- ✅ Currency formatting ($/€)
- ✅ Date formatting (US/EU styles)
Switch languages instantly - One click in the top-left corner. Your leads remember their language preference.
Your Data, Your Device.
- Local Storage: All data persists in your browser. Clearing cookies clears data
- JSON Backup: Click "Backup" to download a universal JSON file of your leads
- Cloud Freedom: Save that backup to your Google Drive, not ours
SolarClose is open source software licensed under the Business Source License 1.1 (BSL).
- Personal Use: Free forever
- Commercial Use: Free for companies with less than $1M annual revenue
- Self-Hosting: Allowed under BSL terms
- Modifications: Allowed for internal use
For companies with $1M+ annual revenue:
- White-Label Branding: Your company logo, colors, and domain
- Custom Features: Pre-loaded incentives, loan products, and integrations
- Priority Support: Direct technical assistance
- Commercial Rights: Full commercial usage rights
Contact us for Commercial Licensing
After 4 years from release, the software automatically converts to the Apache 2.0 license, making it fully open source.
See LICENSE for full terms.
Web App (Recommended):
- Visit https://solarclose.pages.dev
- Click "Install" in your browser to add to home screen
- Works offline as a Progressive Web App (PWA)
Self-Hosted Deployment:
git clone https://github.com/yourusername/solarclose.git
cd solarclose
npm install
npm run build
npm startSolarClose is licensed under the Business Source License 1.1 (BSL).
© 2025 SolarClose. Licensed under BSL 1.1.
This software is open source under the Business Source License 1.1. You may use, modify, and distribute this software for non-production purposes or for companies with less than $1M annual revenue. After 4 years from release, the license automatically converts to Apache 2.0.
Commercial use by companies with $1M+ annual revenue requires a commercial license.
For licensing inquiries, contact: https://teycirbensoltane.tn
Made by Teycir - https://teycirbensoltane.tn