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Real-time electricity generation, fuel mix, demand, and locational marginal prices (LMPs) for major United States regional transmission operators / independent system operators (CAISO, ERCOT, NYISO)
Server provides 10 well-scoped, read-only tools with clear domain focus (US ISO grid data). Tool names follow verb_noun pattern (caiso_*, ercot_*, nyiso_*) and descriptions are detailed (avg 180 chars, within 10-1024 baseline). However, critical gaps: (1) No output schemas documented, LLMs cannot predict response structure for planning; (2) Parameter descriptions lack format/constraint details (e.g., 'limit' has no min/max, 'date' lacks YYYY-MM-DD validation guidance); (3) No error handling guidance, tools will fail silently on invalid dates or network errors; (4) Transport unknown, cannot assess protocol readiness. Tool names are domain-specific but lack action verbs (get_, fetch_, list_) that would improve LLM parsing.
CAISO (California) real-time grid carbon intensity for today: metric tons CO2 emitted per 5-minute interval, plus marginal CO2 (lbs/MWh). Use for "what is California grid carbon intensity right now", climate-aware load shifting, hourly emissions reporting.
CAISO (California) real-time electricity demand vs. forecast for today. Returns 5-minute demand series + day-ahead forecast + hour-ahead forecast (MW). Use for "is California load tracking forecast", peak-demand timing, demand-response triggers.
CAISO (California) real-time grid fuel mix for today: solar, wind, geothermal, biomass, biogas, small hydro, coal, nuclear, natural gas, large hydro, batteries, imports per 5-minute interval. Returns timestamped MW values per fuel type. Use for "what is California using to make electricity right now", "solar curtailment today", "battery contribution this evening".
CAISO (California) real-time renewable generation breakdown for today: solar, wind, geothermal, biomass, biogas, small hydro, nuclear, large hydro, batteries (MW per 5-min interval). Subset of caiso_fuel_mix focused on zero-/low-carbon sources. Use for "California renewable share right now", "duck curve today".
ERCOT (Texas) real-time grid fuel mix: coal/lignite, natural gas, nuclear, hydro, wind, solar, power storage, other (MW). Returns the most recent 5-minute snapshot plus monthly installed capacity per fuel type, so percent-of-installed can be computed. Use for "Texas grid mix right now", "ERCOT wind output", "is Texas burning coal today".
No output schemas documented. LLMs cannot predict response structure (field names, types, nesting) for downstream planning or data extraction. Tools return CSV/JSON but structure is invisible to the agent.
Parameter constraints missing. 'limit' parameter has no min/max bounds (unbounded numbers let LLMs pass absurd values). 'date' parameter lacks format validation guidance (YYYY-MM-DD not enforced in description). No enum constraints on zone names.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-23 | D | 52 | 2026-07-28+ | v2 |
ERCOT (Texas) real-time supply (capacity) vs. demand: hourly capacity, current demand, ERCOT load forecast (MW). Returns the recent day plus today's forecast. Use for "is ERCOT close to its reserve margin", "Texas demand vs. capacity", emergency-alert proximity during heatwaves.
NYISO (New York) real-time grid fuel mix for the most recent published day: dual fuel (gas/oil-capable), natural gas, nuclear, other fossil fuels, hydro, wind, solar, other renewables (MW per 5-min interval). Use for "New York grid mix yesterday", NYC clean-energy progress tracking.
NYISO (New York) zonal LMP (locational marginal price, $/MWh) for the most recent published day, broken down by load zone (CAPITL, CENTRL, DUNWOD, GENESE, HUD VL, LONGIL, MHK VL, MILLWD, N.Y.C., NORTH, WEST). Returns LBMP, marginal cost of losses, marginal cost of congestion per 5-min interval. Use for NY wholesale electricity prices, zonal congestion analysis.
NYISO (New York) actual zonal load (MW) per 5-minute interval for the most recent published day, by zone (CAPITL, CENTRL, DUNWOD, GENESE, HUD VL, LONGIL, MHK VL, MILLWD, N.Y.C., NORTH, WEST). Use for NY zonal demand analysis, peak-time identification, NYC load profile vs. upstate.
NYISO (New York) ISO load forecast (ISOLF) for the most recent published day, per zone, MW. Use for "what does NYISO expect demand to be today", forecast-error tracking vs. nyiso_load.
No error handling guidance. Tools will fail on invalid dates, network timeouts, or missing data, but descriptions provide no recovery hints. LLMs cannot self-correct or retry intelligently.
Tool names lack action verbs. Names like 'caiso_fuel_mix' are domain-specific but do not start with get_, fetch_, or list_. LLMs rely on verb prefixes to infer intent before reading descriptions.
Transport unknown. Source code shows tool definitions but no MCP server initialization, transport binding, or protocol version declaration. Cannot verify HTTP, SSE, or STDIO compliance.