{
  "query": {
    "country": "BE",
    "energy": "electricity",
    "supplier_offers": true
  },
  "status": "ok",
  "price": {
    "currency": "EUR",
    "unit": "per kWh, energy cost excl. VAT, grid fees and taxes",
    "value": 0.20465,
    "measure": "median",
    "median": 0.20465,
    "typical_low": 0.180968,
    "typical_high": 0.2184,
    "min": 0.128,
    "max": 0.242543
  },
  "sample_size": 25,
  "period": {
    "from": "2026-10-01",
    "to": "2026-10-31"
  },
  "confidence": "medium",
  "price_type": "posted_price",
  "as_of": "2026-10-30T09:48:35.362Z",
  "source": {
    "id": "be-vreg-energy",
    "name": "Fixed-price electricity and gas offers for homes in Flanders (VREG V-test open data)",
    "publisher": "Vlaamse Nutsregulator (VREG, the Flemish energy regulator)",
    "licence": "Modellicentie voor gratis hergebruik Vlaanderen v1.0 (Flemish government free-reuse model licence): worldwide, free, non-exclusive right to reuse for any lawful purpose, including commercial exploitation, with attribution and without suggesting that we act on behalf of the regulator. Read on the regulator's disclaimer page on 2026-10-24.",
    "licence_url": "https://www.vlaamsenutsregulator.be/disclaimer",
    "attribution": "Bron: Vlaamse Nutsregulator (VREG), V-test open data. Bevat overheidsinformatie, verkregen onder de modellicentie voor gratis hergebruik Vlaanderen v1.0. The median, the range, the change on the previous month and the ranking of suppliers are calculated by ProofPrice from the listed offers. ProofPrice is not the Vlaamse Nutsregulator and does not act on its behalf.",
    "url": "https://www.vlaamsenutsregulator.be/cijfers/v-test-data-en-energieprijscurves"
  },
  "method": "The Flemish energy regulator (VREG) publishes every product that suppliers listed in its V-test price comparison, month by month, as an open-data workbook. We read the fixed-price products for homes (supply to the customer) of the newest month and take the single-meter energy cost per kWh of each product, excluding VAT, grid fees, taxes and levies. The answer is the median and the 10th to 90th percentile of those listed offers, one per product. These are suppliers' posted offers, not prices customers paid.",
  "method_url": "https://proofprice.com/method",
  "summary": "Fixed-price electricity offers for homes in Flanders in October 2026: median energy cost 0.2047 EUR per kWh (20.47 cents), 10th to 90th percentile 0.181 to 0.2184 EUR, across 25 listed products, excluding VAT, grid fees, taxes and levies. The median is 10.6% higher than in the previous month. Based on 25 records from Vlaamse Nutsregulator (VREG, the Flemish energy regulator) (2026-10-01 to 2026-10-31). Confidence: medium.",
  "notice": "Information, not a valuation or offer. Ranges describe past recorded prices.",
  "extra": {
    "energy": "electricity",
    "meter": "single meter, day tariff",
    "reference_period_label": "October 2026",
    "products_listed": 25,
    "suppliers_listed": 11,
    "fixed_fee_median_eur_per_year": 61.32,
    "green_certificate_cost_median_eur_per_kwh": 0.011,
    "chp_certificate_cost_median_eur_per_kwh": 0.0036,
    "certificate_costs_note": "Listed by the regulator as separate lines; not added to the headline figure.",
    "previous_period": {
      "reference_period": "September 2026",
      "median_eur_per_kwh": 0.1851,
      "products_listed": 24,
      "median_change_percent": 10.6
    },
    "cheapest_suppliers": [
      {
        "supplier": "EnergyVision",
        "cheapest_product": "Goedkope stroom 3 jaar vast",
        "cheapest_eur_per_kwh": 0.128,
        "products_listed": 1
      },
      {
        "supplier": "Bolt",
        "cheapest_product": "Plenty Vast",
        "cheapest_eur_per_kwh": 0.1493,
        "products_listed": 2
      },
      {
        "supplier": "Elegant",
        "cheapest_product": "Zeker & Vast",
        "cheapest_eur_per_kwh": 0.1755,
        "products_listed": 1
      },
      {
        "supplier": "Energie.be",
        "cheapest_product": "Elektriciteit vast online",
        "cheapest_eur_per_kwh": 0.1892,
        "products_listed": 1
      },
      {
        "supplier": "Mega (handelsnaam van Power Online)",
        "cheapest_product": "PREPAID FIXED",
        "cheapest_eur_per_kwh": 0.1902,
        "products_listed": 7
      },
      {
        "supplier": "OCTA+ ENERGIE",
        "cheapest_product": "Boost Fix",
        "cheapest_eur_per_kwh": 0.1912,
        "products_listed": 2
      },
      {
        "supplier": "Trevion",
        "cheapest_product": "Trevion Groene Energie Vast",
        "cheapest_eur_per_kwh": 0.1917,
        "products_listed": 1
      },
      {
        "supplier": "TotalEnergies",
        "cheapest_product": "myEssential Vast",
        "cheapest_eur_per_kwh": 0.1921,
        "products_listed": 2
      },
      {
        "supplier": "Luminus",
        "cheapest_product": "BasicFix Online",
        "cheapest_eur_per_kwh": 0.1934,
        "products_listed": 4
      },
      {
        "supplier": "Eneco Belgium",
        "cheapest_product": "Eneco Zon & Wind Fix One",
        "cheapest_eur_per_kwh": 0.2047,
        "products_listed": 2
      },
      {
        "supplier": "ENGIE (handelsnaam van Electrabel)",
        "cheapest_product": "Empower",
        "cheapest_eur_per_kwh": 0.2098,
        "products_listed": 2
      }
    ],
    "price_basis": "posted offers of suppliers (fixed-price products for homes, supply to the customer), one record per product, excluding VAT, grid fees, taxes and levies",
    "attribution_notice": "Bron: Vlaamse Nutsregulator (VREG), V-test open data. Bevat overheidsinformatie, verkregen onder de modellicentie voor gratis hergebruik Vlaanderen v1.0."
  },
  "answer_id": "ans_a9ab9f9dddc0eb34a476",
  "method_version": "1",
  "retrieved_at": "2026-10-30T09:48:35.362Z",
  "evidence": {
    "type": "posted_price",
    "label": "Suppliers' posted fixed-price offers (not a receipt)",
    "meaning": "The price per kWh that each supplier's fixed-price product for homes was listed at in the Flemish V-test in the month. An offer to a new customer, before grid fees, taxes and VAT; not what anyone paid."
  },
  "reliability": "record_level",
  "data_as_of": "2026-10-30",
  "data_age_days": 0,
  "suggestions": [
    "This is a posted price, not what each customer paid."
  ]
}