What people ask most often before using the platform for the first time. The whole journey of a project from intent to operation is on one map on the page How we do it. If you do not find the answer, write to us.
It calculates whether and how a battery storage system pays off — from a battery at home to a utility project of tens of MWh. The output is a business case, a revenue stack and a due diligence report. We are neither a technology vendor nor a designer; we do not design the siting or run operations.
Reservation prices for ancillary services from ČEPS, day-ahead prices from OTE, distribution tariffs from ERÚ price decisions, flexibility scenarios from the ČEPS needs analysis. No number is filled in from memory — when a source is missing, the platform says so and does not calculate. The current state of the sources is on the page Data status (in Czech).
Because a single number would be dishonest. Reservation prices fell by more than 90 % between 2023 and 2026 — any single value would give an impression of certainty that does not exist. That is why low / base / high for every stream and for the economics.
A DSCR (the ratio of operating cash flow to debt service) below 1.2 is below the usual bank minimum. The platform always flags such a project — even if the other indicators look good. An unknown DSCR never pretends to be compliant; it shows as “undetermined”.
For a utility project within the documented size range we add an indicative benchmark and label the result as indicative. Outside that range, and for behind-the-meter installations, we do not calculate the economics at all — a DCF with zero investment would return a strongly positive NPV, which is worse than a missing figure.
Not for a large transaction, and we do not claim it does. The platform gives clarity on the vast majority of decisions in minutes and for a fraction of the price; full due diligence with a human expert is a paid follow-on step, not an entry gate.
The Czech Republic — tariffs, regulation and market data are in a so-called country pack, which is finished for the Czech Republic. Germany, Poland, Austria and Slovakia are planned.
A few seconds. It runs on the server over the actual 15-minute day-ahead series, not in the browser — so the result is the same for everyone and can be traced back by the input fingerprint.
Yes. A negative NPV, a sub-threshold DSCR and missing inputs are shown as visibly as good results. Independence is the whole product — if we hid bad results, there would be no point.
Things that can kill a project or significantly worsen it — technical, regulatory and economic. For example an approaching deadline for an amendment to the connection agreement, CAPEX outside the usual range, or efficiency below the threshold for the relief on the maximum drawn power charge.
Form inputs are stored against your account. Inverter access credentials are stored separately in an encrypted vault and never enter the calculation. This is described in detail in the privacy policy (in Czech).
The one-pager with an indicative assessment is free. Beyond that the price depends on the segment — from CZK 2,490 one-off for a home to a per-MWh rate for utility projects. The complete overview is in the price list.
Your battery, audited. In minutes, not months.
Enter an address, an invoice or documentation — the platform builds a business case, revenue stack and due diligence from real market data. First output free.