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:

Pricing structure:

Contract term & cancellation:


🤝 SimplyFair12 – for maximum price security

Ideal if you:

Pricing structure:

Contract term & cancellation:


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