BTM / transitional

Why it matters

This is a structurally distinct BTM template from yesterday's Joule 4 GW Utah lead and worth modeling separately in BTM-product-surface.md. Yesterday's Joule deployment is *permanent* off-grid (no interconnect, ever); Fleet's Storey filing is *transitional* off-grid (BTM gens operate 2–3 years until utility delivers permanent service). The transitional model is materially more capital-efficient per MW because (a) air-permit envelope is smaller for a 2–3 year operating life — RICE NESHAP / Title V applicability turn on hours-of-operation thresholds, and a 24-month window can fit under the synthetic-minor or short-term construction-permit envelope rather than a full Title V major-source filing, (b) Cat / Cummins genset financing is markedly cheaper for 2–3 year contracts than for 20-year permanent BTM, (c) the eventual switchover to grid service captures the utility-tariff economics once the queue clears. Tract's existing wiki entry (m-and-a-map.md, landgate.md, byog-byong-state-patchwork.md) already flags Tract as the sandbox-developer model; Fleet's 350 MW Nevada filing is the first observable Tract-led BTM template at scale and the first one tied to a named hyperscaler tenant (Nvidia per Bloomberg). The 'over-the-counter permits' inside TRIC's core area is also the structural answer to the Camden GA / Sedgwick KS local-moratorium pattern from yesterday — when the master-developer agreement pre-grants permitting authority below the county-commissioner level, the moratorium chokepoint disappears entirely. Worth opening a new strategy/tract-fleet-storey-transitional-btm.md page tracking the filing through the Nevada Public Utilities Commission and the air-permit module of the de-rate calculator should now have transitional-BTM as a discrete deployment mode alongside permanent-BTM and grid-tied. The 2-3 year window is also a tell that NV Energy's Greenlink transmission is the binding constraint and Fleet has chosen to bridge with gensets rather than wait — that's the same arbitrage pattern the de-rate calculator models for ERCOT Batch Zero in Texas, with Nevada as a clean parallel.