{ "schema_version": "1.1.0", "last_build_verified": "2026-08-21", "_notes": "Working rate data for the live app. As of the 2026-08-21 refresh pass, SDG&E, PG&E, MID, Riverside, and SMUD are confirmed directly against each utility's official tariff PDF ('_needs_verification: false'). LADWP and IID are updated against multiple corroborating secondary sources but still need a primary-tariff-PDF check (both utilities' sites block automated fetches). SCE and Anaheim remain unverified seed values — primary sources could not be located this pass. See each utility's 'notes' field for details and sourcing. The comparison set is all-California (as of 2026-05-07): SDG&E + LADWP, SCE, Anaheim, SMUD, PG&E, IID, Riverside Public Utilities, Modesto Irrigation District. See planning/04-rate-refresh-guide.md and docs/methodology.md.", "_schema": { "tiered_plan": "Tiers have CUMULATIVE caps. {kwh_threshold: 500} means 'this tier ends at 500 kWh of monthly usage.' kwh_threshold: null = remainder.", "tou_plan": "Each period has rate_summer and rate_winter. Default shape (share of monthly kWh per period) is set per-utility in the calc module.", "flat_plan": "Single per-kWh rate, no tiers or time periods. Used by IID's Domestic Service." }, "utilities": { "sdge": { "city": "San Diego", "utility_name": "San Diego Gas & Electric", "utility_type": "IOU", "state": "CA", "effective_date": "2026-08-01", "last_verified_at": "2026-08-21", "source_url": "https://www.sdge.com/total-electric-rates", "_needs_verification": false, "default_plan_id": "TOU-DR1", "plans": { "TOU-DR1": { "name": "TOU-DR1 Residential Time-of-Use", "structure": "tou", "fixed_charge_monthly": 24.16, "minimum_bill_monthly": 10.0, "tou_periods": { "on_peak": { "rate_summer": 0.69135, "rate_winter": 0.61471 }, "off_peak": { "rate_summer": 0.46421, "rate_winter": 0.53060 }, "super_off_peak": { "rate_summer": null, "rate_winter": 0.43719, "_winter_months": [3, 4] } }, "surcharges_per_kwh": 0.005, "tax_pct": 0.0057, "tax_label": "Franchise fee", "notes": "VERIFIED 2026-08-21 against SDG&E's official 'Schedule TOU-DR1 Total Rates Table' effective 8/1/2026 (sdge.com/sites/default/files/regulatory/8-1-26 Schedule TOU-DR1 Total Rates Table.pdf, provided directly by a volunteer) — this supersedes the 6/1/2026 table this entry briefly used earlier the same day; SDG&E has now filed at least three rate revisions in 2026 (Jan, Jun, Aug). Base Services Charge is $0.79343/day, converted to a monthly figure here. FLAG FOR SECOND VOLUNTEER: at 500 kWh this now computes to roughly $280 summer / $300 winter, which exceeds the rate-refresh guide's stated winter sanity range ($200–250) — likely the guide's sanity thresholds are now stale given real 2026 SDG&E rate increases, but worth a second pair of eyes per the guide's own instruction before treating as final. Also worth resolving: the Total Rates Table appears to already bundle all UDC riders (transmission, distribution, public purpose programs, etc.) into the 'Total Electric Rate' column used here — confirm the separate surcharges_per_kwh (0.005) isn't double-counting a component already folded into these totals. Given SDG&E is now revising this schedule roughly every 1-2 months, this entry may go stale faster than the twice-yearly refresh cycle assumes.", "caveats": [ "TOU plan: assumes a default 20/50/30 mix of on-peak / off-peak / super-off-peak usage. Your actual mix depends on when you use power.", "We use the headline above-baseline tariff rates and don't separately apply SDG&E's baseline allowance/credit. This keeps SDG&E directly comparable to PG&E and SCE in the leaderboard, but understates the bill modestly for low-usage customers who stay within the baseline allowance." ] } } }, "ladwp": { "city": "Los Angeles", "utility_name": "Los Angeles Department of Water and Power", "utility_type": "POU", "state": "CA", "effective_date": "2026-07-01", "last_verified_at": "2026-08-21", "source_url": "https://www.ladwp.com/account/understanding-your-rates/residential-electric-rates", "_needs_verification": true, "default_plan_id": "R-1A", "plans": { "R-1A": { "name": "Standard Residential Service (Zone 1)", "structure": "tiered", "zone_assumed": "Zone_1_coastal", "fixed_charge_monthly": 7.90, "minimum_bill_monthly": 10.0, "tiers_summer": [ { "kwh_threshold": 350, "rate": 0.264 }, { "kwh_threshold": 700, "rate": 0.323 }, { "kwh_threshold": null, "rate": 0.410 } ], "tiers_winter": [ { "kwh_threshold": null, "rate": 0.22 } ], "surcharges_per_kwh": 0.015, "tax_pct": 0.10, "tax_label": "LA Electricity Users Tax", "notes": "RE-CHECKED 2026-08-21: ladwp.com still returns 403 to automated fetches (bot-blocked, same as the IID pattern), so this remains secondary-sourced rather than primary-verified. Summer (Jul-Sep 2026) tier rates updated from 0.22/0.30/0.37 to 0.264/0.323/0.410, corroborated consistently across five independent aggregators (Solar.com, Utility Check, Cali Energy, NRG Clean Power, Helios Energy) citing a ~2.1-2.5¢/kWh rise over 2025 summer levels. Winter/non-summer rate (0.22 flat) was NOT re-corroborated this pass — left unchanged pending confirmation. Power Access Charge actually varies $2.30/$7.90/$22.70 by the customer's highest-usage month in the trailing year; we keep the $7.90 mid-tier as a simplifying default. STILL PENDING a primary-source cross-check — LADWP's site blocks automated access, so this needs a volunteer to check manually in a browser.", "caveats": [ "LADWP customers in Zone 2 (inland LA, hotter) have different tier baselines than the Zone 1 (coastal) defaults shown here. Check your bill to confirm which zone applies." ] } } }, "sce": { "city": "San Bernardino", "utility_name": "Southern California Edison", "utility_type": "IOU", "state": "CA", "effective_date": "2026-01-01", "last_verified_at": "2026-05-01", "source_url": "https://www.sce.com/residential/rates", "_needs_verification": true, "default_plan_id": "TOU_D_4_9PM", "plans": { "TOU_D_4_9PM": { "name": "TOU-D-4-9PM Residential Time-of-Use", "structure": "tou", "fixed_charge_monthly": 11.82, "minimum_bill_monthly": 10.00, "tou_periods": { "on_peak": { "rate_summer": 0.58, "rate_winter": 0.52 }, "off_peak": { "rate_summer": 0.36, "rate_winter": 0.33 } }, "surcharges_per_kwh": 0.005, "tax_pct": 0.05, "tax_label": "Local utility tax (varies by city)", "notes": "SCE is California's other major IOU and is structurally similar to SDG&E (TOU residential default with summer/winter rates). Serves much of Southern California outside LADWP, SDG&E, and the muni-served cities. The 4-9 PM on-peak window applies on weekdays; weekends and the rest of weekday hours are off-peak. Tax_pct is a midpoint estimate — actual local utility taxes range from 0% (some Orange County cities) to ~10% (LA County cities). RE-CHECKED 2026-08-21: could not locate SCE's actual TOU-D-4-9PM tariff sheet PDF (sce.com's rate pages are landing pages without the schedule itself, and a search for the CPUC advice-letter PDF didn't surface it). Secondary aggregator estimates for 2026 (peak ~49-58¢, off-peak ~29-36¢) are broadly consistent with the existing seed values, so left unchanged. STILL PENDING a real primary-source check — a volunteer should locate the actual Cal. P.U.C. sheet, likely by browsing sce.com's Regulatory/Tariff Books section directly rather than searching.", "caveats": [ "TOU plan: assumes a default 20/80 mix of on-peak / off-peak usage. Your actual mix depends on when you use power.", "Local utility tax varies across SCE's territory — some LA-area cities carry up to 10%, while many Inland Empire and Orange County cities (including parts of San Bernardino County) carry 0% or low rates. We use a 5% midpoint.", "We use the headline above-baseline tariff rates and don't separately apply SCE's baseline allowance/credit, consistent with how SDG&E and PG&E are modeled." ] } } }, "smud": { "city": "Sacramento", "utility_name": "Sacramento Municipal Utility District", "utility_type": "POU", "state": "CA", "effective_date": "2026-01-01", "last_verified_at": "2026-08-21", "source_url": "https://www.smud.org/en/Rate-Information", "_needs_verification": false, "default_plan_id": "R", "plans": { "R": { "name": "Standard Residential (Time-of-Day)", "structure": "tou", "fixed_charge_monthly": 27.00, "minimum_bill_monthly": 10.0, "tou_periods": { "on_peak": { "rate_summer": 0.3765, "rate_winter": 0.1776 }, "mid_peak": { "rate_summer": 0.2139, "rate_winter": 0.1285 }, "off_peak": { "rate_summer": 0.1550, "rate_winter": 0.1285 } }, "surcharges_per_kwh": 0.002, "tax_pct": 0.075, "tax_label": "Sacramento utility users tax", "notes": "VERIFIED 2026-08-21 against SMUD's official Rate Schedule R-TOD PDF (smud.org/-/media/Documents/Rate-Information/Rates/1-R-TOD.ashx, Resolution 25-06-15), using the Jan 1, 2026 effective column. STRUCTURAL CORRECTION: SMUD's real tariff has only 2 periods in winter (Peak 5-8pm weekdays, Off-Peak everything else) — there is no winter mid-peak period at all. The prior seed's mid_peak.rate_winter (0.18) was set equal to on_peak, effectively overbilling the 30%-share our model labels 'mid-peak' at the on-peak rate. Corrected mid_peak.rate_winter to equal off_peak.rate_winter (0.1285), since those hours are genuinely just off-peak hours under the real tariff — this keeps the calc module's always-3-period model numerically correct without needing a code change. Fixed charge updated 23.50 → 27.00/mo. Tax is Sacramento's 7.5% UUT. Summer genuinely has all 3 periods (Peak 5-8pm, Mid-Peak weekday non-peak hours, Off-Peak nights/weekends).", "caveats": [ "TOU plan: assumes a default 15/30/55 mix of on-peak / mid-peak / off-peak usage. Your actual mix depends on when you use power.", "Local utility tax varies across SMUD's service territory — Sacramento City carries the 7.5% UUT we apply here, but suburbs (Citrus Heights, Folsom, Rancho Cordova, etc.) carry lower rates or none. Bills outside the City of Sacramento will run modestly lower than our estimate." ] } } }, "pge": { "city": "San Francisco", "utility_name": "Pacific Gas & Electric", "utility_type": "IOU", "state": "CA", "effective_date": "2026-06-01", "last_verified_at": "2026-08-21", "source_url": "https://www.pge.com/tariffs/en/rate-information/electric-rates.html", "_needs_verification": false, "default_plan_id": "E_TOU_C", "plans": { "E_TOU_C": { "name": "E-TOU-C Residential Time-of-Use (Peak 4–9 PM)", "structure": "tou", "fixed_charge_monthly": 24.12, "minimum_bill_monthly": 10.0, "tou_periods": { "on_peak": { "rate_summer": 0.5224, "rate_winter": 0.3976 }, "off_peak": { "rate_summer": 0.3994, "rate_winter": 0.3676 } }, "surcharges_per_kwh": 0, "tax_pct": 0.0057, "tax_label": "Franchise fee", "notes": "VERIFIED 2026-08-21 directly against PG&E's official Cal. P.U.C. tariff sheet (Electric Schedule E-TOU-C, Advice 7921-E, effective June 1, 2026) — pge.com/tariffs/assets/pdf/tariffbook/ELEC_SCHEDS_E-TOU-C.pdf. All four TOU rates matched the seed values exactly (to the hundredth of a cent); only effective_date and last_verified_at needed updating. Base services charge ($24.12/mo) is Income Tier 3 (the no-discount default, $0.79343/day) — Tier 1 (CARE-eligible) is $0.19713/day and Tier 2 (FERA / affordable rental) is $0.39688/day. Peak window is 4–9 PM every day, including weekends.", "caveats": [ "TOU plan: assumes a default 25/75 mix of on-peak / off-peak usage. PG&E's peak window is 4–9 PM every day (including weekends), so the on-peak share is higher than SCE's weekday-only equivalent. Your actual mix depends on when you use power.", "We don't apply PG&E's baseline credit (-$0.0814/kWh on baseline allowance, which varies by climate zone). For a typical Bay Area customer this would lower the bill modestly; we use the headline tariff rate for comparability with other utilities.", "Base services charge assumes Income Tier 3 (the standard, no-discount tier). CARE-eligible customers pay much less." ] } } }, "iid": { "city": "El Centro", "utility_name": "Imperial Irrigation District", "utility_type": "POU", "state": "CA", "effective_date": "2026-01-01", "last_verified_at": "2026-08-21", "source_url": "https://www.iid.com/power/rates-regulations/rates", "_needs_verification": true, "default_plan_id": "Domestic", "plans": { "Domestic": { "name": "Domestic Service", "structure": "flat", "fixed_charge_monthly": 11.40, "minimum_bill_monthly": 11.40, "rate_per_kwh": 0.2230, "surcharges_per_kwh": 0, "tax_pct": 0.0, "tax_label": "Tax (none — Imperial County rural, no city UUT applied here)", "notes": "RE-CHECKED 2026-08-21: IID's site is still bot-protected for automated fetches, but a volunteer supplied a screenshot of IID's own published '2025-2028 Rate Update' table directly from iid.com, which is effectively a primary source. It confirms Residential energy rate exactly: 19.76¢ (2025) / 22.30¢ (2026, matches this entry) / 24.38¢ (2027, flat through 2028). Table footnote: 'Energy Cost Adjustment (ECA) will be reduced to zero' and 'rate does not include fixed charges' — the customer charge portion of that table wasn't visible in the screenshot, so the $11.40/mo fixed charge here remains secondary-sourced (OhmSnap, Helios Energy) rather than confirmed from IID's own document. _needs_verification stays true pending that one remaining figure.", "caveats": [ "IID rates are mid-cycle: 2025 was ~19.7 ¢/kWh, 2026 is ~22.3 ¢/kWh, slated to rise to ~24.4 ¢/kWh by 2027 per the Board's 2025–2028 rate adjustment plan.", "Imperial Valley summers are extreme — typical IID household uses 2–3× more kWh than coastal SD due to cooling load. We hold your usage constant for the comparison." ] } } }, "riverside": { "city": "Riverside", "utility_name": "Riverside Public Utilities", "utility_type": "POU", "state": "CA", "effective_date": "2026-01-01", "last_verified_at": "2026-08-21", "source_url": "https://riversideca.gov/utilities/residents/rates/electric-rules-rates", "_needs_verification": false, "default_plan_id": "D-TOU", "plans": { "D-TOU": { "name": "Schedule D-TOU Domestic Time-of-Use", "structure": "tou", "fixed_charge_monthly": 45.31, "minimum_bill_monthly": 45.31, "tou_periods": { "on_peak": { "rate_summer": 0.2304, "rate_winter": 0.1728 }, "mid_peak": { "rate_summer": 0.1497, "rate_winter": 0.1382 }, "off_peak": { "rate_summer": 0.1253, "rate_winter": 0.1253 } }, "surcharges_per_kwh": 0.005, "tax_pct": 0.065, "tax_label": "Riverside utility users tax (UUT)", "notes": "VERIFIED 2026-08-21 against RPU's official Schedule D-TOU PDF (multi-year rate table adopted Aug 2023, Board Resolution 2023-2, with columns through 2028). CORRECTION: the seed's summer TOU rates (0.1990/0.1294/0.1083) were actually the document's 2024 column, not 2026 — winter rates were correctly pulled from 2026 but summer accidentally used 2024. Now using the 2026 column consistently for both seasons: summer on/mid/off-peak 0.2304/0.1497/0.1253, winter 0.1728/0.1382/0.1253 (winter unchanged, was already correct). Fixed $45.31/mo combines Customer ($14.93) + Reliability ($20.00 medium residence 101–200A) + Network Access ($10.38 Tier 2 daily-avg) — all confirmed exact matches to the 2026 column. Energy rates shown are Tier 1 only — high-usage customers cross into Tier 2 (~60% higher) inside summer on-peak (>330 kWh on-peak/month).", "caveats": [ "TOU plan: assumes a default 15/30/55 mix of on-peak / mid-peak / off-peak usage. Your actual mix depends on when you use power.", "Service charges combine Customer + Reliability (medium-residence 101–200A) + Network Access (Tier 2 daily-avg kWh). Apartment / small residence customers see ~$10/mo less.", "We model Tier 1 within each TOU period only. Riverside's full Schedule D-TOU has tier breaks within each period (e.g., on-peak summer Tier 2 is ~$0.32/kWh vs Tier 1 $0.20/kWh) — typical 500 kWh users stay within Tier 1 for most periods." ] } } }, "mid": { "city": "Modesto", "utility_name": "Modesto Irrigation District", "utility_type": "POU", "state": "CA", "effective_date": "2025-01-01", "last_verified_at": "2026-08-21", "source_url": "https://www.mid.org/power/rates-service-rules/electric-rates/", "_needs_verification": false, "default_plan_id": "D", "plans": { "D": { "name": "Schedule D Residential Service", "structure": "tiered", "fixed_charge_monthly": 32.00, "minimum_bill_monthly": 32.00, "tiers_summer": [ { "kwh_threshold": 500, "rate": 0.17759 }, { "kwh_threshold": null, "rate": 0.21349 } ], "tiers_winter": [ { "kwh_threshold": 500, "rate": 0.15279 }, { "kwh_threshold": null, "rate": 0.18249 } ], "surcharges_per_kwh": 0.0148, "tax_pct": 0.0, "tax_label": "Tax (none — see note)", "notes": "VERIFIED 2026-08-21 directly against MID's official Electric Rate Schedule D PDF (mid.org/wp-content/uploads/2025-D-RESIDENTIAL.pdf), effective January 1, 2025. Fixed charge and all four tier rates matched the seed exactly. Two-tier seasonal: 500 kWh tier-1 cap, ~3.6 ¢/kWh tier-2 markup. Surcharges per kWh combine system-wide CIA ($0.0028) + EEA ($0.0120) adjustments; PCA is currently $0 — these are billed separately from the base Schedule D rate and weren't itemized on the sheet checked, so surcharge figures remain as previously sourced. MID is a public irrigation/utility district — no city UUT applied to residential.", "caveats": [ "MID summer is May–September (one month broader than the CA convention used by SDG&E, LADWP, Anaheim, etc.)." ] } } }, "anaheim": { "city": "Anaheim", "utility_name": "Anaheim Public Utilities", "utility_type": "POU", "state": "CA", "effective_date": "2026-01-01", "last_verified_at": "2026-05-01", "source_url": "https://www.anaheim.net/653/Electric-Utility-Rate-Schedules", "_needs_verification": true, "default_plan_id": "Domestic", "plans": { "Domestic": { "name": "Standard Domestic Rate (Residential)", "structure": "tiered", "fixed_charge_monthly": 11.00, "minimum_bill_monthly": 11.00, "tiers_summer": [ { "kwh_threshold": 430, "rate": 0.160 }, { "kwh_threshold": null, "rate": 0.210 } ], "tiers_winter": [ { "kwh_threshold": 285, "rate": 0.155 }, { "kwh_threshold": null, "rate": 0.200 } ], "surcharges_per_kwh": 0.005, "tax_pct": 0.025, "tax_label": "Anaheim utility users tax", "notes": "Anaheim Public Utilities (APU) is the city-owned electric utility serving Anaheim, CA. APU offers a Standard Domestic Rate (default; modeled here) and a Domestic TOU Rate (not modeled). Rate values were calibrated against secondary sources: FindEnergy reports APU's average residential rate at 19.87¢/kWh; EnergySage shows roughly 21¢/kWh as of April 2026; APU's average residential bill is $94.60/month. The numbers here are tuned to produce ~$94 at ~475 kWh, but the tier thresholds and exact per-kWh splits still need a final volunteer verification pass against the official Standard Domestic Rate tariff at anaheim.net/653. RE-CHECKED 2026-08-21: found and read anaheim.net's combined rates/rules PDF, but the specific page located was the 'Developmental Schedule D-TOU' (a different, TOU-based rate we don't model, last revised 2011) rather than the Standard Domestic Rate schedule this entry actually models — so no new data obtained. STILL PENDING: a volunteer needs to find the current Standard (non-TOU) Schedule D specifically within anaheim.net's rate document, ideally via anaheim.net/6335/Residential-Rates.", "caveats": [ "Anaheim residential rates use a seasonal baseline: ~430 kWh in summer (Jun–Oct), ~285 kWh in winter. Crossing the baseline kicks usage into the higher tier-2 rate." ] } } } } }