What is the difference between SimplyFair and SimplyFair12? | Ostrom Help Center
What is the difference between SimplyFair and SimplyFair12?
Written by Philip Janz
January 26, 2026
Both plans are based on the same core model!
👉 Electricity from 100% renewable energy, market-based pricing, full cost transparency, and fair cancellation terms. The main difference is flexibility vs. price security.
🚝 SimplyFair – for maximum flexibility
The classic SimplyFair plan is ideal if you:
- want to stay fully flexible
- are comfortable with monthly price changes
- want to react to market developments at any time
Pricing structure:
- Monthly Base Fee
- Unit price:
- can get adjusted on a monthly base and may change based on market prices
- any price changes are communicated to you by email 4 weeks in advance
Contract term & cancellation:
- no minimum contract term
- cancel anytime with 2 weeks’ notice
🤝 SimplyFair12 – for maximum price security
Ideal if you:
- want predictable energy costs
- prefer prices that don’t change for 12 months
- want to protect yourself from market fluctuations
Pricing structure:
- energy price guaranteed for 12 months
- monthly base fee:
- 7€ base fee per month
- grid fees charged by your local grid operator
Contract term & cancellation:
- minimum contract term: 12 months
- automatically extended by 1 month thereafter
- Cancellation notice:
- 2 weeks before the end of the contract term ( after that, cancellable at any time with 2 weeks’ notice)
Quick comparison
| Feature | SimplyFair | SimplyFair12 |
| Base fee | Base fee (incl. grid fees charged by your grid operator) | 7 € base fee + grid fees charged by your grid operator |
| Unit price | Variable (monthly changes) | Fixed for 12 months |
| Minimum contract term | None | 12 months |
| Notice period | 2 weeks, anytime | 2 weeks to the end of the contract term |
| Best for | Flexibility | Price stability |