{
  "url": "https://openlegislation.uk/draft-ecodesign-for-energy-related-products-and-energy-information-regulations-2021/schedule-10/paragraph-4",
  "json_url": "https://openlegislation.uk/draft-ecodesign-for-energy-related-products-and-energy-information-regulations-2021/schedule-10/paragraph-4.json",
  "legislation": "ukdsi/2021/9780348222920",
  "legislation_title": "The Ecodesign for Energy-Related Products and Energy Information Regulations 2021",
  "legislation_url": "https://openlegislation.uk/draft-ecodesign-for-energy-related-products-and-energy-information-regulations-2021",
  "path": "schedule/10/paragraph/4",
  "kind": "paragraph",
  "number": "4",
  "heading": "Weighted water consumption",
  "text": "(1) The weighted water consumption (WW) of a household washing machine or of the washing cycle of a household washer-dryer must be rounded to the nearest integer and calculated in litres as follows—\nWW= (A × WW,full + B × WW,1/2 + C × WW,1/4).\n(2) For the purposes of sub-paragraph (1)—\n(a) WW,full is the water consumption of—\n(i) a washing machine, or\n(ii) the washing cycle of a household washer-dryer,\nfor the eco 40-60 programme at rated washing capacity, in litres and rounded to one decimal place;\n(b) WW,½ is the water consumption of—\n(i) a household washing machine, or\n(ii) the washing cycle of a household washer-dryer,\nfor the eco 40-60 programme at half of the rated washing capacity, in litres and rounded to one decimal place;\n(c) WW,1/4 is the water consumption of—\n(i) a household washing machine, or\n(ii) the washing cycle of a household washer-dryer,\nfor the eco 40-60 programme at a quarter of the rated washing capacity, in litres and rounded to one decimal place;\n(d) A, B and C are the weighting factors referred to in paragraph 2(7).\n(3) For household washer-dryers with a rated washing capacity lower than or equal to 3 kg, the weighted water consumption of the wash and dry cycle is the water consumption at rated capacity, rounded to the nearest integer.\n(4) For all other washer-dryers, the weighted water consumption (WWD) of the wash and dry cycle must be rounded to the nearest integer and calculated as follows—\nWWD= [ 3×WWD,full±2×WWD, 1 2 ] 5\n(5) For the purposes of sub-paragraph (4)—\n(a) WWD,full is the water consumption of the wash and dry cycle of a household washer-dryer at rated capacity, in litres and rounded to one decimal place;\n(b) WWD,½ is the water consumption of the wash and dry cycle of a household washer-dryer at half of the rated capacity, in litres and rounded to one decimal place.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ukdsi/2021/9780348222920/schedule/10/paragraph/4",
    "retrieved_at": "2026-10-30T14:47:21.902040+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}