Deep Retrofit Conference: European EPISCOPE project study on current energy retrofit rates on north Dublin housing stock and future requirements    

1. 1
(2013-2016)
Towards Zero Conference
22nd
June 2017
Michael Hanratty, IHER Energy Services Ltd
"The sole responsibility for the content of this presentation lies with the authors. It does not represent the opinion of the
Community. The European Commission is not responsible for any use that may be made of the information contained
therein."

2. 2
EPISCOPE/ TABULA Irish
Building Typology
• 3 new dwelling types
• 31 existing dwelling types
• standard and advanced
upgrade analysis for all
existing dwellings
www.episcope.eu
http://episcope.eu/fileadmin/tabula/public/docs/brochure
/IE_TABULA_TypologyBrochure_EnergyAction.pdf

3. 3
IEE EPISCOPE Project (2013-2016)
1. So, what proportion of the housing stock
has been refurbished to date?
2. And, what proportion of dwellings are
getting energy upgrade works done each
year? How are we tracking?
3. If we are going to miss 2020/ 2030/2050
targets, what policy steps or interventions
can be taken to close the gap?

4. 4
EPISCOPE Pilot Action: Northside of Dublin City
 Pilot Action Area data:
– Population: 307,000
– 134,000 dwellings
– 1,242 Small Areas (50-200 dwellings)
– 93 Electoral Divisions (smallest legally defined
administrative areas in the State for Small Area Population
Statistics)

5. 5
EPISCOPE Irish Pilot Action:
Building Stock Energy Performance Indicators
Element
% Elements
Refurbished
(BER research
tool)
Walls 14.2%
Roofs 34.7%
Windows 76.2%
Boilers 23.9%

6. 6
Field Survey - Trend Findings
Field Survey Summary
Element
Annual
Refurb
rate (%)
Funding (%)
SEAI Grant
since 2008
Warmer Homes
Scheme
Local Auth./
landlord upgrade Outside grants
Walls 2.20% 25% 13% 25% 38%
Roofs 4.50% 10% 14% 10% 67%
Windows 3.20% 0% N.A. 21% 79%
Boilers 4.20% 4% N.A. 12% 84%
Controls 0.80% 14% N.A. 0% 86%

7. 7
Aggregate Annual Refurbishment
Rate/Trend – Northside of Dublin City
Aggregate trend gives base assumption for
‘business as usual’ trend
Aggregate Trend (annual):
Element
3 * National
Progr'mes Field survey
BER
Research
Tool
Aggregate
trend
Walls 1.06% 2.20% 2.50% 2.40%
Roofs 0.76% 4.50% 2.60% 3.60%
Windows N.A. 3.20% 2.20% 2.70%
Boilers 0.5% 4.20% 2.00% 3.10%
Controls 0.04% 0.80% N.A. 0.80%

8. 8
Current Trends & Target Trends
(primary energy calibrated for actual use)
Base assumptions for ‘business as usual’ Trend Scenario
g
a
p
Target (-80%)
Business as
usual
(- 48% CO2)
220kWh/m2
/a
130 kWh/m2
/a
66 kWh/m2
/a

9. 9
Base assumptions for ‘business as usual’ Trend Scenario
Achieving 80% reduction by
2050 will require:
 DEEP retrofit of 75% of the
residential stock (i.e. to
primary energy value of circa
43 kWh/m2/year)
 A 60% de-carbonisation of the
electricity grid
Recommendation
Assuming 75% of residential stock of 1.6m dwellings will require a deep retrofit
at c €30k per unit, €36bn spend on dwellings to hit 2050 target
Current Trends & Target Trends
http://episcope.eu/fileadmin/episcope/public/docs/pilot_act
ions/IE_EPISCOPE_LocalCaseStudy_EnergyAction.pdf

10. 10
UK House Condition Surveys
House Condition
Surveys Description Budget
Scottish HCS 3,000 building surveys per year €1m p.a.
English HCS
13,300 social surveys/ 6,200
building surveys/ inspections p.a.
€3.75m p.a.
Northern Irish HCS
1,314 social surveys/ 1,434
building surveys
(every 5 years, 2011/ 2016)
€0.4m
Given the scale of the task to meet 2020/ 2030/ 2050 energy saving
targets, a rolling residential energy performance survey for
Ireland is STRONGLY RECOMMENDED
Here’s a mapped view

11. 11
BER Ratings (2015) – average D2
This map will need to be deep green
by 2050!

12. 12
Wall U Values
Current status indicator!
http://energyaction-static.s3-website-eu-west-1.amazonaws.com/index.html

13. 13
Heating Controls
A lot of work to be done!

14. 14
ENERFUND: 12 partner countries
N
O
ORGANISATION COUNTRY
1
Cyprus
University of
Technology
Cyprus
2
Centre for
Renewable
Energy Sources
and Saving
Greece
3
National
Institute for
Research and
Development in
Construction,
Urban Planning
and Sustainable
Spatial
Development
Romania
4
Cyprus Energy
Agency
Cyprus
5
ECB – Energy
Centre
Bratislava
Slovakia
6
Severn Wye
Energy Agency
UK
7
Sustainable
Energy
Development
Agency
Bulgaria
Jozef Stefan
An ENERgy Retrofit FUNDing rating tool
www.enerfund.eu

15. 15
INDICATIVE PARAMETERS – TO BE DEFINED DURING THE PROJECT
OK Credit Rating Good Credit
Rating
OK Credit Rating
E Rating F Rating G Rating
High Occupancy Medium Occupancy Low Occupancy
5% VAT on
retrofit
19% VAT on
retrofit
0% VAT on
retrofit
Mountainous Area City Area City Area
No pro-active
actions
Pro-active Mayor Pro-active Mayor
No Training
Courses
Available
Training Courses
Available
Training Courses
Available
Product Product No Product
An ENERFUND example

16. 16
"The sole responsibility for the content of this presentation lies with the authors. It does not represent the opinion of the
Community. The European Commission is not responsible for any use that may be made of the information contained
therein."
Thanks for listening........
www.episcope.eu
michael@iher.ie