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Physical supply and use tables Summary of country experiences in Europe

This report provides a summary of country experiences in Europe regarding the monitoring of water use efficiencies and the derivation of cost-effective measures to protect water resources. It also includes forecasts of economic development and their impact on water abstraction and use, as well as cross-country comparisons via indicators. The report highlights the challenges and recommended data sources for collecting accurate and reliable water use data.

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Physical supply and use tables Summary of country experiences in Europe

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  1. Physical supply and use tablesSummary of country experiences in Europe

  2. Purposes • National level: • Monitoring of water use efficiencies • Which economic activity creates the biggest pressure on the different water sources? • Derivation of cost-effective measures to protect water resources from exhaustion (requirement of the EU Water Framework Directive) • Forecasts of economic development  forecasts of water abstraction and use • Breakdown to river basin level and administrative areas • … • European level: • Same as national level • Cross-country comparisons via indicators

  3. Data collection EU Countries and OECD countries: Eurostat/OECD Joint Questionnaire on Inland waters • Water abstraction and supply and use tables according to NACE 2 digits classification: • Public water supply (41) • Agriculture, forestry, fishing (01-05) • of which: Irrigation • Manufacturing industry (15-37) • of which: industry-cooling • Production of electricity (cooling) (40.1) • Other activities (50-93) • Households -> representing the physical side of supply and use, same data can be used for physical supply and use tables

  4. Table 2 Table 3 General water flow scheme (JQ Inland Waters)

  5. Physical flows within the economy

  6. Selected results from pilot studies (Spain)

  7. Selected results from pilot studies (Netherlands)

  8. Selected results from pilot studies (country comparison – absolute values)

  9. Selected results from pilot studies (country comparison – water use per EUR of value added)

  10. Selected results from pilot studies (Denmark)

  11. Typical and recommended data sources • Abstraction and supply by water supply industries • Census on water supply industries by NSIs • Data from invoicing of water supply • Water (supply) associations • Water abstraction and use by industries • Existing administrative data (e.g. from checking of water permits) • Surveys by NSIs (biggest water users and representative water users) • Calculation with water use factors (per unit of product / per EUR value added / per employee…) • Expert estimation • Water abstraction and use by agriculture • Administrative data • Farmers Association • Invoicing data • Agriculture statistics • Expert calculations • Water abstraction and use by households • Household census and water use factors

  12. Challenges • (Legally) binding data collection • Contradictions in data from different sources • Data accuracy • Trends within margin of error? • Different accuracy from different data sources • Data collection according to NACE / ISIC classifications • Awareness of policy makers, media and public

  13. Conclusion • There is a legal requirement to link physical water use data with economic data: EU Water Framework Directive 2000/60/EC • Water Accounts are one of many tools and will be more and more important in the near future • Countries with most water-related problems have the best experience in water accounting • There is the political and economic need for this data and derived indicators • Data sources • Administrative data • Census data • Calculation with co-efficients • Requirement for data exchange with other institutions: • Ministry of Environment / Agriculture / Water Management • Environment Agency • Water Associations • Universities (e.g. for water use factors) • …

  14. Thank you very much for your attention!nagym@un.org

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