Energy Efficiency in Buildings Challenge. Data related challenges and opportunities Jens Laustsen Coordinator of CA EPBD Executive Director of 2peach Brussels, 4 th October 2016
Energy Efficiency in Buildings Challenge.Data related challenges and
opportunities
Jens Laustsen
Coordinator of CA EPBD
Executive Director of 2peach
Brussels, 4th October 2016
A new Concerted Action EPBD IVConcerted Action EPBD IV:• Started 1 October 2015 and run until March 2018 • All EU Member States plus Norway• 29 partners – lead by DEA (DK)• 4 CA plenary meetings will be held• First meeting November 2015 in Copenhagen• Second meeting end of May 2016 in Vilnius• Third meeting will be in February 2017 in Valletta• Experts meet and share experience• Support implementation and maximise outcome of EPBD• Confidentiality in meetings – Free and open
Lessons learned and share of best practice
The EPBD Recast
Major focus on Energy Performance
New revision is on-going
Existing Buildings
New Buildings
Cert. & Quality Insp.
Structure CA IV
3 Core Teams
Major renovationComponents
Information
Finance IncentivesCertification
Inspection
Existing Buildings
New Buildings
Cert. & Quality Insp.
Structure CA IV
3 Core Teams
Major renovationComponents
Information
Finance IncentivesCertification
Inspection
Each started with a brainstorm to identify relevant topics !
Existing Buildings
New Buildings
Cert. & Quality Insp.
Policy Implement
Technical Elements
Compliance Capacity Impact
Structure CA IVCalculation Method
CEN adaptationStandard Values
Renewable Energy
Certification Scales
Cost Efficiency
3 Cross-cutting Teams
Common elements
Existing Buildings
New Buildings
Cert. & Quality Insp.
Policy Implement
Technical Elements
Compliance Capacity Impact
Structure CA IV
3 Cross-Cutting TeamsPolicy Package Energy Renovation
Existing Buildings
New Buildings
Cert. & Quality Insp.
Collaboration CA RES & EED
Policy Implement
Technical Elements
Compliance Capacity Impact
Structure CA IV
Collaboration other CA’s and projects
Demands for Energy Renovation in EED …
Existing Buildings
New Buildings
Cert. & Quality Insp.
Collaboration CA RES & EED
Communication
Policy Implement
Technical Elements
Compliance Capacity Impact
Structure CA IV
Internal Communication External Communication
Incl. Database-driven PDF = Book
Change in the CAThe new structure reflects the following needs:
• More holistic approach to buildings• More holistic policy packages – especially for
existing buildings• Need for more focus on compliance and impact• => Need to improve data collection• More needs for policies for existing buildings• Need for more collaboration CAs and EE projects• Involvement of stakeholders
EPBD Policies
• Implementation of EPBD policies request a large amount of data
• But they could potentially also deliver very large amount of data at low costs
NZEB and Cost Optimality
• Some key elements in EPBD and European policy development are:
• Nearly zero energy requirements for all buildings in 2020 and for public buildings in 2018
• Cost optimality as guidance for NZEBs both in new and existing buildings
• Request very large sets of data !
Requirements New Buildings- nZEB
Survey – filled in by half of MS shows that 60 % has defined nZEBstandards by April 2015.
Ways to calculate for instance RES are are very different !
Diversity !
Danish Building Codes
kWh
per m
² per
yea
r
In Danish action plans for a CO2 neutral society it is the target that all building will be positive in the future (year still to be decided)
Gross energy including heating, cooling, ventilation and hot sanitary water
0
20
40
60
80
100
120
140
160
Existingbuildings .
BR 1982 . BR 1995 . BR 2006 . BR 2010 . BR 2015 . BR 2020 . BR 2025 ?.
BR ?? .
Requirements New Buildings- nZEB
Cost Optimality
Large work has been done on Cost Optimality – LCA’sLevels of LCA are are very different !
Cost Optimality Examples
Good examples from Belgium and Denmark
Diversity ! But all requests very larges sets of data
Control for New Buildings
Checking compliance and checking impact requires large amounts of data
Lack of consistent data
• In my past post we tried to check the true costs of these building codes
• Wanting to compare the impact on real prices• But it was not possible to get consistent data for
the same group of buildings:• On real savings• Nor on real additional costs• Special problems with energy and building
physics• Metered versus calculated
Existing Buildings
• Every existing building is different • Different construction• Different history
• Improvements can bring them to different stages
Building TypologyGermany France
Tabula / Episcope - http://episcope.eu/building-typology/country/
Very Best practice Renovationin GermanyFactor 10
Better than new !Energy standard refurbishment
0
50
100
150
200
250
300
Existin
g bu
ildings
EnEV S
anier
ung
EvEV N
ew B
uilding
s
EnEV m
inus 3
0%
EnEV m
inus 5
0%
Passiv
e ho
use
kW
h7(m
²a) Primary losses
Losses in system
Hot sanitory water
Energy demand
Source: DENA Besser als ein Neubau
St. Petersburg, Russia
Germany
Fact
or 1
0
28 kWh/m²
- 91 %
28 kWh/m²
- 88 %
22 kWh/m²
- 89 %
44 kWh/m²
- 83 %
21 kWh/m²
- 96 %
35 kWh/m²
- 90 %
Renovation StrategiesJoint Research Centre, Renovation strategies
Need for collaboration with EED
Renovation was a large part of our last meeting in Vilnius:• Stakeholder
meeting 30 May • Sessions on CA
Plenary
These strategies and implementation need to be based on very large sets of data
EPBD Policies
• Implementation of EPBD policies request a large amount of data
• But they could potentially also deliver very large amount of data at low costs
• Especially the EPCs has a very large potential
Certification, EPC
• EPBD requires certification of buildings:• By construction• By sale• By rental• Regular for large public buildings
• Every year 10.000’s or even 100.000’s of certificates are made in every European country
Certification, EPC
Germany
Diversity ! Pros and Cons
Collection of Data
• By most EPCs a consultant is sent to the house to collect a large set of data
• In many countries these are collected in a central database
• Cross Europe more than 1 million buildings checked every year !!!
Could these only be made active !!!
Some Gaps
Some gaps to be closed:• Better combination / connection between data on
buildings and on energy use• Better data on results of change – before and after• Better connection between measured and
calculated energy use• More data on consumer influence on consumption
Thank you for your attention
Jens Laustsen
CA EPBD Coordinator
Executive Director @ 2peach Aps