eu policies on energy performance of buildings: the role of air tightness and ventilation
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
EU POLICIES ON ENERGY PERFORMANCE OF BUILDINGS:the role of air tightness and ventilation
Users & Stakeholders TightVent Meeting, Brussels 24 MARCH 2011
Dr Marina EconomidouExpert in Energy Efficiency
Buildings Performance Institute Europe
BPIE
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
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 F
EW
WO
RD
S A
BO
UT
BP
IEBP
IE
EU frameworkEPBD (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
BPIE
EU
BU
ILD
ING
PO
LIC
IES
: O
PP
OR
TU
NIT
IES
& C
HA
LL
EN
GE
S
Energy Efficiency Plan 2011Non-binding targets
1) MS to set their own indicative targets 2) 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 1) Set an example2) Renovation rate to be doubled to at least 3 % per year3) Renovation should bring buildings up to level of the best 10% of national building
stock4) 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.
BPIE
EU
BU
ILD
ING
PO
LIC
IES
: O
PP
OR
TU
NIT
IES
& C
HA
LL
EN
GE
S
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
BU
ILD
ING
PO
LIC
IES
: O
PP
OR
TU
NIT
IES
& C
HA
LL
EN
GE
SBP
IE
CO2 Saving potential
IMP
OR
TA
NC
E O
F A
IR-T
IGH
TN
ES
S A
ND
V
EN
TIL
AT
ION
BPIE
ABA
TEM
ENT
COST
TO
TAL
IMPR
OVE
MEN
T PO
TEN
TIA
L
* Source: JRC: Environmental Improvement Potentials of Residential Buildings. South European countries with warm climates
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
IMP
OR
TA
NC
E O
F A
IR-T
IGH
TN
ES
S A
ND
V
EN
TIL
AT
ION
BPIE
Nearly zero energy buildings
Air-tightness :part of integrated NZEB solution
Multiple definitions: Climate, building types, building traditions , etc.
So does ventilation!
Need:Common and cross-national understanding
BPIE
Example of low energy standards: Passive House
Air tightness of EU buildings
* Source: Preliminary BPIE data for its ‘Transforming Europe’s Buildings’ study
BPIE
Max. air tightness levels
BPIE* Source: Preliminary BPIE data for its ‘Transforming Europe’s Buildings’ study
AT CZ UK
Renovations• Air-tightness & Ventilation to beconsidered in renovation solutions
Current renovation rates ~1% per year
Targeted renovation rates ~3% per year
• Need for large scale solutions
BPIE
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
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 F
EW
WO
RD
S A
BO
UT
BP
IEBP
IE