Get Refined Queue
get_refined_queueServer-side SET-REDUCTION over the US ISO interconnection queue (~5,300 projects, 7 ISOs, ~1,744 GW). Instead of pulling the raw queue into context to filter (token-expensive, error-prone), push the predicates to the data layer and get back ONLY the survivors. Filter by min_mw, max_ttp_months (ISO-level avg interconnection wait), iso (comma-union), baseload_only (firm/dispatchable — excludes wind/solar/storage), fuel_type (isolate a specific fuel, e.g. gas or nuclear), and the spatial predicates max_fiber_km + geocoded_only. Returns _entity=queue_results: per-project name, ISO, state/county, fuel_type, capacity_mw, queue_status, estimated_ttp_months, fuel_class, plus (~83% of rows) lat/lng, coordinate_precision, fiber_km, and a compact per-survivor site_evaluation_handoff (ready-to-pipe analyze_site + get_water_risk args) + a by_iso/by_fuel summary. Answers "show me 1 GW+ gas projects that can connect in under three years", "what is in the queue that actually fits my timeline". Try: get_refined_queue min_mw=1000 fuel_type=gas max_ttp_months=34 — "1 GW+ gas in ISOs under 34-month time-to-power." NOTE max_ttp_months is a HARD ISO cut (SPP ~24 is the only ISO under 30, so <=30 can return nothing); use >=34 to include MISO/ERCOT/ISO-NE. Use for high-cardinality siting/arbitrage scans; do NOT use for the ISO-level GW aggregate (use get_interconnection_queue) or a single-site read (use analyze_site). Phase 2 LIVE: pipe a survivor's site_evaluation_handoff straight into analyze_site for a one-call composite viability read. CANDIDATE CONTRACT (2026-07-11): every survivor also mints a durable opaque candidate_id + snapshot_id (7-day TTL, deterministic candidate_expired on lapse — never a silent recompute). ZERO-DRIFT CHAINING: pass candidate_id to analyze_site / rank_sites instead of transposing coordinates — downstream reads the FROZEN mint, eliminating param-rename/rounding/lost-context drift. geocoded_only=true guarantees every survivor carries both the handoff AND frozen coordinates. Contract doc: dchub.cloud/docs/candidate-lifecycle.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| iso | No | Restrict to one or more ISOs, comma-separated for a union: PJM, ERCOT, MISO, CAISO, SPP, NYISO, ISONE (ISO-NE). e.g. iso=ERCOT,PJM. Omit for all; combines with max_ttp_months as an intersection | |
| limit | No | Max results to return (1-500; default varies by tool) | |
| min_mw | No | Minimum project capacity in MW, e.g. 1000 for 1 GW+ | |
| status | No | Queue status filter. Default 'active' = still progressing (excludes withdrawn/cancelled/suspended/in-commercial-operation) — cross-ISO safe (SPP labels live projects 'IA FULLY EXECUTED/ON SCHEDULE' not 'active'). Pass 'all' for every status, or a literal label to substring-match | |
| fuel_type | No | Isolate a fuel by inclusive substring match on the raw label; comma/semicolon-separated for a union, e.g. 'gas' hits GAS/Natural Gas, 'nuclear,hydro' unions both. Runs the fuel filter server-side instead of post-filtering survivors in context | |
| max_fiber_km | No | Keep only survivors within N km of the nearest MAPPED long-haul fiber route endpoint — coarse backbone proximity from a sparse ~260-node dataset over a county-centroid origin, NOT last-mile fiber. Implies geocoded rows only | |
| baseload_only | No | Keep only firm/dispatchable fuel (nuclear, gas, steam, geothermal, hydro, coal); exclude wind/solar/storage. Firm-vs-intermittent split only — does NOT sub-divide peaker vs combined-cycle gas (no duty-cycle field in the queue). Default false | |
| geocoded_only | No | Keep only survivors that carry lat/lng (~83% of the queue) — the ones with a ready site_evaluation_handoff you can pipe into analyze_site. Default false | |
| max_ttp_months | No | Max time-to-power in months (ISO-level avg interconnection wait; HARD cut keeping projects in ISOs at/under this — PJM ~51, CAISO ~40, ISO-NE ~34, MISO ~34, ERCOT ~33, NYISO ~31, SPP ~24; <=30 leaves only SPP) |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| quota | No | Caller quota state (remaining calls, tier) when available. | |
| _entity | No | Payload class discriminator (e.g. facility|market|iso_grid|queue_results|deal|report|response) — branch on this before parsing the rest. | |
| citation | No | Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload. Normally an OBJECT {source, url, license, cite_as, retrieved_at}; a bare string is accepted and carries the attribution line itself. | |
| provenance | No | Collection-level provenance block: {source, method, as_of, verification_counts, cite_url_template, license, cite_as}. Quote the verification level when citing. | |
| _front_door | No | In-band front-door hint (first workflow-entry tool of a session): call plan_query(intent) first for the ordered multi-step plan. | |
| _return_loop | No | Suggested next-session delta call (get_changes since=24h) so you pull only what changed. | |
| site_evaluation_handoff | No | Pre-built follow-up calls (analyze_site / get_water_risk args) when the payload carries coordinates — an array of {tool, parameters, why} entries. |