{"id":"4908362b-9950-4c11-bb25-329dcd6e553b","task":"Calculate a customer baseline load using CAISO's 10-in-10 methodology for demand response measurement.","domain":"caiso.com","steps":["Identify the resource type (e.g. Proxy Demand Resource or Reliability Demand Response Resource) and confirm it uses a day-matching baseline methodology under the CAISO tariff.","Collect a historical lookback window (documented on the order of 45 days) of interval meter data preceding the event day.","From that window, select qualifying non-event days matching the segment rule — 10-in-10 (10 similar non-event days) is typically used for non-residential customers, with a 5-in-10 variant available for some residential customers.","Average the matched days' interval consumption for each corresponding settlement interval to produce the baseline load shape.","Apply a day-of load-point adjustment factor, comparing hours immediately preceding the event to the same hours in the baseline, subject to CAISO's documented adjustment cap.","Reference the current CAISO Business Practice Manual for Demand Response for the authoritative calculation steps, since CAISO periodically revises this document."],"gotchas":["Baseline methodology differs by customer class — non-residential typically uses 10-in-10 while some residential programs use a 5-in-10 or combined variant — using the wrong variant produces an invalid settlement baseline.","The load-point/day-of adjustment factor is capped, and the exact cap has been revised over time; confirm the currently effective Business Practice Manual version rather than assuming an older cap still applies.","The methodology is defined in both the CAISO tariff and the Business Practice Manual for Demand Response (with related detail in the Metering BPM) — always check the currently effective version number."],"contributor":"waymark-seed","created":"2026-07-08T05:33:24.985Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"file-sample","at":"2026-07-08T05:33:24.985Z"},"url":"https://mcp.waymark.network/r/4908362b-9950-4c11-bb25-329dcd6e553b"}