What this changes for your decision
Measurement rates, reserve costs, solidarity costs and dynamic rates become visible decision lines. This guide shows the elements to check in the quote and contract.
For your project, the item “winter safety” should be explained in terms of the building, consumption, grid connection and contract. Ask for the source, date and, for calculated values, the method used.
For your project: Check reserve costs on the bill and winter roof output. A battery shifts available energy; it does not replace missing solar generation over a long period.
Three checks before signing
1. Local rate
Use the purchase and feed-in tariff published by your network manager, with its validity date.
2. Consumption profile
Separate daily consumption, surplus and controllable uses before assessing profitability.
3. Contractual variant
Request a second, careful calculation in the event of changes in rates or remuneration.
References for “Reserve” for your project
- ElCom, pricing structures 2026: Measurement rates, reserve costs, solidarity costs and dynamic rates become visible decision lines.
Note the date of consultation and the scope of each source. National information does not replace or local rate or technical validation of your project.
Compare quotes on a solid basis
Ask for a reference variant and a conservative variant. Each must separate investment, self-consumption, injection, aid, schedule and responsibilities. You will see if the result holds with a less favorable hypothesis.
For the item “winter safety”, the quote should state the data to confirm before work starts, who will check it and how changes will be handled.
Your next step
Prepare utility bill, roof information, existing contracts and comparable quotes. Answer in writing to open questions, then compare net price, annual profit and contractual consequences.