One site analysis, in the browser

1. 01 Data

   Any CSV export: long or wide, kWh or kW, registers, day-month or month-day, daylight saving days. Every assumption the importer makes is listed, and gaps are filled only when you say so.

2. 02 Tariff & bill

   Published tariffs with their sources — Liander 2026 and the ACM 2028 draft, NEW Netz with the German levies, the Romanian ANRE tariffs — or your own rates. The rebuilt bill is checked against the invoices month by month.

3. 03 Battery

   Cut peak charges, or stay under a connection limit after adding EV chargers or a heat pump. Pick a product from the battery database or let the search find the size with the best net present value.

4. 04 Finance

   Installed cost, maintenance, capacity fade and replacement, discount rate. Savings for an aged battery are re-billed, not scaled.

5. 05 Results

   Peak before and after, savings by bill line, payback, NPV and IRR — every case billed by the same engine as the baseline and checked for energy balance.

6. 06 Report

   A PDF with the data-quality appendix, the tariff versions and sources, the assumptions and the limits. White-label on Pro.

Try it on the illustrative sample site without an account. Your first analysis on real data is free.