The problem. "100 MW available" can mean a transformer nameplate in MVA, capacity requested but not confirmed, or a site's total consumption. For a data center, what counts is usable IT capacity, once cooling on the hottest day, design margin and auxiliaries are removed. This tool gives the order of magnitude.

cos φ
%
%
%
kW
Usable IT capacity–
As a share of the announced capacity–
Announced active power–
Confirmed power–
Available for the site after margin and auxiliaries–
Indicative number of racks–

Simplified calculation. Redundancy (N+1, 2N) applies to internal equipment rather than grid capacity, but a margin is needed for maintenance and peaks. Does not replace a study.

WHAT THE CALCULATOR DOES NOT TELL YOU

Whether the capacity is actually confirmed, from when, with which limitations and works. That is what a document-based check is for. For a former industrial site, see also what a brownfield's MW are really worth.

HOW IT WORKS

A first conversation. You describe the project and the decision at stake. We tell you whether we can help, and who will be involved.
A confidentiality agreement. Signed before you send us any document.
A written, fixed-fee proposal. Scope, deliverables, timeline and fees set in advance: no open-ended time-based billing.
The assignment and debrief. A written deliverable, a debrief session, and the questions to put to the grid operator or your partners.

WHAT WE COMMIT TO

Recent assignments

Review of connection documents and the announced energisation date for a European data center developer, ahead of its investment decision. Audit of high-voltage equipment sourcing for a petrochemical group.

Independence

We do not design, build or sell equipment. No commission, no brokerage. Never on both sides of the same project.

Framework

Confidentiality agreement before any document. Professional liability insurance. Best-efforts obligation: only RTE and Enedis commit to capacity and a date.

DESCRIBE YOUR SITUATION

A few lines are enough: the project, the document or decision at stake, and your deadline. We come back to you to set up a first conversation.

First conversation confidential and with no commitment. Fixed fees proposed in writing before any assignment. Best-efforts obligation.

FREQUENTLY ASKED QUESTIONS

Why divide by peak PUE rather than average PUE?

Because the site must run on the hottest day, when cooling uses the most. Annual average PUE is for energy, not sizing.