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EU POLICIES ON ENERGY PERFORMANCE OF BUILDINGS: the role of air tightness and ventilation

EU POLICIES ON ENERGY PERFORMANCE OF BUILDINGS: the role of air tightness and ventilation. Users & Stakeholders TightVent Meeting, Brussels 24 MARCH 2011 Dr Marina Economidou Expert in Energy Efficiency Buildings Performance Institute Europe. BPIE. Overview. A Few Words about BPIE

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EU POLICIES ON ENERGY PERFORMANCE OF BUILDINGS: the role of air tightness and ventilation

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  1. EU POLICIES ON ENERGY PERFORMANCE OF BUILDINGS:the role of air tightness and ventilation Users & Stakeholders TightVent Meeting, Brussels 24 MARCH 2011 Dr Marina Economidou Expert in Energy Efficiency Buildings Performance Institute Europe BPIE

  2. Overview • A Few Words about BPIE • EU Building Policies: opportunities & challenges • Why care about ventilation & air-tightness? • Airtightness in New and Existing building policies • Concluding remarks BPIE

  3. BPIE • Non-profit association in Brussels; operational since Feb 10 • Founding partners: eceee, European Climate Foundation, Climate Works • Focus on energy efficiency in buildings throughout Europe • Centre of expertise in buildings (technical expertise) • European centre for a global best practice network • Targeted independent research, policy analysis & evaluation to support policy implementation A FEW WORDS ABOUT BPIE BPIE

  4. EU framework EPBD (2002/91/EC) • Definition of requirements for the energy performance of buildings • methodology for calculating the energy performance of buildings • scheme of assessing the energy performance of a building (EPC) • Mechanism of regular inspections of heating & air conditioning systems EPBD (2010/31/EC) • New nearly-zero-energy buildings constructed after 2020 (public sector buildings in 2018) • A harmonised calculation methodology to push MS  minimum energy performance requirements towards cost-optimal levels • Existing building stock shall be renovated to very low-energy standards (no specific target be set for the renovation of existing building). • For major retrofits the 1000 m² threshold is eliminated . • A more detailed and rigorous procedure for issuing EPC EU 2020 – 20/20/20 Target EU BUILDING POLICIES: OPPORTUNITIES & CHALLENGES BPIE

  5. Energy Efficiency Plan 2011 Non-binding targets • MS to set their own indicative targets • EC to review progress in 2013 and propose binding targets for all MSs if it appears the 20% target will not be achieved. Public Sector • Set an example • Renovation rate to be doubled to at least 3 % per year • Renovation should bring buildings up to level of the best 10% of national building stock • Energy efficiency standards to be incorporated more fully into public procurement. ESCOs • Both the private and public sectors • Legislative proposals to increase their role Training • Improving training for architects, engineers, auditors etc. to meet implementation of technically demanding building solutions. EU BUILDING POLICIES: OPPORTUNITIES & CHALLENGES BPIE

  6. EPBD and Air tightness • Common general framework for the calculation of energy performance of buildings (Annex 1): “The methodology shall be laid down taking into consideration at least the following aspects: … … … (d) natural and mechanical ventilation which may include air-tightness; ...” EU BUILDING POLICIES: OPPORTUNITIES & CHALLENGES BPIE

  7. TOTAL IMPROVEMENT POTENTIAL CO2 Saving potential ABATEMENT COST IMPORTANCE OF AIR-TIGHTNESS AND VENTILATION * Source: JRC: Environmental Improvement Potentials of Residential Buildings. South European countries with warm climates BPIE

  8. Indoor air quality Build Tight – Ventilate right ‘Leaky’ buildings • Discomfort • Space heating/cooling • Deterioration ‘Too air-tight’ buildings • Sick Building Syndrome Symptoms: e.g. headaches, fatigue IMPORTANCE OF AIR-TIGHTNESS AND VENTILATION BPIE

  9. Nearly zero energy buildings Multiple definitions: Climate, building types, building traditions , etc. Need: Common and cross-national understanding Example of low energy standards: Passive House Air-tightness : part of integrated NZEB solution So does ventilation! BPIE

  10. Air tightness of EU buildings * Source: Preliminary BPIE data for its ‘Transforming Europe’s Buildings’ study BPIE

  11. Max. air tightness levels UK AT CZ * Source: Preliminary BPIE data for its ‘Transforming Europe’s Buildings’ study BPIE

  12. Renovations • Air-tightness & Ventilation to be considered in renovation solutions Current renovation rates ~1% per year Targeted renovation rates ~3% per year • Need for large scale solutions BPIE

  13. Some concluding remarks • Legal framework: exists but more support is required for implementation • Importance of Build Tight – Ventilate Right • Environmental reasons • Comfort reasons • Greater need for air-tightness and ventilation measures: • NZEB • RENOVATIONS BPIE

  14. Thank you! Marina Economidou marina.economidou@bpie.eu BPIE

  15. BPIE’s mission • Support the development of ambitious – but pragmatic buildings related policies and programs at EU and Member State Level. • Drive timely and efficient implementation by teaming up on European and member state level with local authorities, communities, industrial players, research organisations and consumers. • Provide the knowledge that is necessary to conduct both activities successfully A FEW WORDS ABOUT BPIE BPIE

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