What the difference between SimplyFair and SimplyFair24? | Ostrom Help Center
What the difference between SimplyFair and SimplyFair24?
Written by Laura
May 7, 2026
👉 Both plans start from the same place: 100 % renewable energy, transparent pricing, and fair contract terms.
🚝 SimplyFair – Maximum Flexibility
The classic SimplyFair plan is ideal if you:
- want to stay fully flexible
- are comfortable with monthly price adjustments
- want to react to market developments at any time
Pricing structure:
- Monthly base fee
- Unit price:
- can be adjusted monthly depending on market conditions
- price changes are communicated 4 weeks in advance by email
Contract term & cancellation:
- No minimum contract term
- Cancel anytime with 2 weeks' notice
🔒 SimplyFair24 – Maximum Price Security
Ideal if you:
- want long-term, predictable energy costs
- want all price components locked in for 24 months
- want protection against market fluctuations, tax, and levy changes
Pricing structure:
- Full price guarantee for 24 months – all price components are locked in, including taxes and levies (e.g. VAT, electricity tax, EEG, KWKG, StromNEV, offshore levy, concession fee, grid fees, and unit rate)
- Monthly base fee:
- 8 EUR base fee per month
- grid fees of your local grid operator
Contract term & cancellation:
- Minimum contract term: 24 months from start of supply
- Automatic monthly renewal thereafter
- Cancellation: 2 weeks before the end of the contract term (afterwards cancelable anytime with 2 weeks' notice)
Quick Comparison
| Feature | SimplyFair | SimplyFair24 |
| Base fee | Base fee (incl. grid fees) | 8 EUR base fee + grid fees |
| Price guarantee | None (monthly adjustments) | All price components fixed for 24 months |
| Minimum contract term | None | 24 months |
| Cancellation notice | 2 weeks, anytime | 2 weeks before end of contract term |
| Best for | Flexibility | Long-term price security |