Required data
Current tariff, building load, solar output, battery state and forecasts. EV charging and heat pumps add mobility and comfort goals.
Charge from the grid?
This can make sense with a clear price spread and low expected solar output. Losses, wear and backup reserve must be included.
A practical rule set
Define minimum reserve, maximum price, target time and solar forecast. Do not react to every small price movement.
- Check the forecast
- Include conversion losses
- Limit simultaneous power
- Compare real monthly results
Common mistakes
Excessive cycling, no fallback and coincident loads can increase costs. A negative wholesale price does not always mean a negative retail price.
Conclusion
Dynamic tariffs work best with flexible loads and transparent, safe automation.
Hinweis: Der Artikel bietet allgemeine technische Orientierung. Verbindliche Auslegung, Anschlussregeln, Förderungen und Wirtschaftlichkeit müssen projektbezogen geprüft werden.