| What it does | Calculate your Body Roundness Index instantly. Free, Fast, and Revealing.
| Independent calculator to check if a home battery pays for itself in your situation
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| NL
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Free calculation with no registration required
- Optional gender and age personalization
- Average BRI data by age and gender
- Interpretation guidance for results
- Detailed waist measurement instructions
- Comparison with BMI
- Health risk assessment based on BRI ranges
| - 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
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| What makes it different | - Uses waist circumference for more accurate body composition assessment than BMI
- Better at predicting cardiovascular health risks
- More sensitive to changes in body shape and fat distribution
- Provides accurate results for people with high muscle mass
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 25 ● no change since last check | 16 ● no change since last check |
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| Trust Flow (Majestic) | 7 | 18 |
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| Citation Flow (Majestic) | 18 | 24 |
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| Referring domains (Majestic) | 55 | 18 |
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BRI Calculator
Eerlijk over Thuisbatterijen