| What it does | Independent calculator to check if a home battery pays for itself in your situation
| Free Bazi Chart Calculator with True Solar Time and AI Interpretation
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| Stage | Not given
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| Founded | Not given
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| Based in | NL
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Free basic chart, Ten Gods, hidden stems, and luck cycles. Paid one-time reports: complete life reading with 3-year outlook and 90-day action plan (price not specified). Credit packs available for full reports, follow-ups, and advisor chats; first top-up receives 20 bonus credits. Personal AI Adviso
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| Key features | - Compares battery models from 23 brands on payback time and net result after 15 years
- Calculates with real hourly EPEX prices for dynamic energy contracts
- Processes the end of net metering from 1 January 2027
- Provides negative buying advice if purchase is not worthwhile
- No account or email required
- Generates 10-page PDF advice report with lowest prices from 11 shops
- Free 22-page PDF handbook about home batteries
- Analyzes consumption and solar generation hour by hour for full year
- Three scenarios: pessimistic, most likely and optimistic outcomes
- Updates prices from 11 online shops every morning automatically
| - Free Four Pillars chart with true solar time calibration and historical time zone handling
- Hidden Stems and Ten Gods visualization
- Decade-long and year-by-year luck cycle analysis
- Register to save multiple charts for family members
- Complete life reading exploring personality, work, relationships, and life stages
- Personal AI Advisor for ongoing conversation about chart and life choices
- 3-year outlook with strategic timing guidance
- 90-day action plan with tactical focus and concrete steps
- Solar time calibration tool to verify time zone and boundary adjustments
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| What makes it different | - Truly independent: sells no batteries, has no arrangements with installers, publishes negative buying advice
- No personal data collection: zero signup required, immediate results without email
- Built from personal need: creator did his own calculations after a misleading sales pitch
- Comprehensive research: 384 example households analyzed in 26,112 calculations
- Shows all calculation assumptions: transparent methodology with public data sources
| - Transparent calculation with defined rules allowing verification of chart results
- True solar time and historical time zone handling for accurate chart generation
- Separation of chart calculation from interpretation for evidence-based analysis
- One-time payments with zero automatic renewals or hidden charges
- Open-source kit for developers to integrate Bazi charting into their applications
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 17 ▲ +2 (up) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 18 | 1 |
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| Citation Flow (Majestic) | 24 | 15 |
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| Referring domains (Majestic) | 18 | 15 |
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Eerlijk over Thuisbatterijen
Yuanzi Zhiyi