Everything on this site stays free and stays here. These packets are the same material gathered into something you can put in a project folder, hand to a colleague, or attach to a submittal — sourced, dated, and readable without a browser tab open.
Each is drawn from work already published on this site. The pages the material comes from are linked under every entry, so you can read the whole basis before deciding whether the packaged form is worth anything to you.
The full lead-time index — 249 rows across nine equipment groups — with what is actually driving each number, which are firm and which are modelled, and how to read them into a schedule that survives contact with a supplier.
How an interconnection request actually moves through ERCOT, MISO and PJM: the study sequence, where the queue stalls, what each operator asks for and when, and the timing assumptions that most often turn out to be wrong.
The electrical scope of a data center build from utility service to rack: transformers, switchgear, distribution, backup generation and cooling — what each is specified by, the standards it is built to, and the lead time to plan around.
What NFPA 855 asks of a battery installation and how that shapes siting, spacing and enclosure choice — plus how augmentation is planned across a project's life rather than bolted on once capacity has already faded.
The method behind each of the calculators: the formula, where it comes from, a worked example you can check by hand, the code or standard that governs it, and the conditions under which the shortcut stops being safe to use.
Buy America and IIJA domestic-content rules alongside FEOC restrictions: what has to be sourced where, what documentation is expected to prove it, and where the two regimes pull a bill of materials in different directions.
There is no point building all six before finding out whether any of them is wanted. Tell us which is closest to a problem you actually have, and we will build that one and email you when it exists. One message about that packet — not a newsletter, and not a signup for anything else.
What this is not. Voltfield does not sell equipment and is not a route to anyone who does. These packets would be documents — the reference material on this site, gathered and formatted. The site itself stays free, complete and without a signup, whether or not any of this ever ships.