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

Jens.Laustsen@live.com