SERVE-ING Tipperary Results & Lessons

© SERVE Project, 2013

www.servecommunity.ie

SERVE-ING Tipperary

Results & Lessons Paul KEnny

http://www.servecommunity.ie/

SERVE Region


Rural Region

Core Project Activities

Retrofitting for Existing Houses and Buildings

New Buildings

Renewable Energy Supply

Monitor and prove results

Research on socio-economic impacts

and sustainable electricity options

Train/Educate people



400

Retrofits

50

New Builds

73,000m2


600

Wood Stoves

950 m2

Solar Panels

2,000kW

Biomass


40,000,000 pieces of Energy

Data

100’s of House Visits

Many Cups of Tea

Results


€4.1m in Grant Aid

11% IRR

13% increase in Biomass Use


0%

5%

10%

15%

20%

25%

A1 A2 A3 B1 B2 B3 C1 C2 C3 D1 D2 E1 E2 F G

National

Tipperary

SERVE Pre Upgrade

SERVE Monitored Houses – Pre Upgrade

EXCELLENT GOOD VERY POOR

SERVE Monitored Houses – Post Upgrade


0%

5%

10%

15%

20%

25%

30%

35%

40%

A1 A2 A3 B1 B2 B3 C1 C2 C3 D1 D2 E1 E2 F G

National

Tipperary

SERVE Post Upgrade

Notable Shift towards B3 / C1

Using National & SERVE BER Databases

EXCELLENT GOOD VERY POOR

NOW and THEN

– Now a National Retrofit Programme and Grant

Supports which have many similarities to SERVE

structures

– No supports for retrofitting of homes

– 200 construction people trained on quality standards

– No training on retrofitting

– SERVE has 40 million data points on energy

consumption in dwellings (retrofitted and new

buildings)

– No data on energy performance of dwellings

– 1.5MW of biomass heating in place on Heat Supply

Contracts. ESCO Model Development

– No Biomass Heat Supply Contracts in Place


• Climate change reality

• Ireland’s energy use – need to accelerate

NZEB

• Energy security

• Competitiveness

Why we need to change

Climate Change Reality

• “The latest science makes it clear that the world needs to reach zero

carbon emissions globally by 2050 to maximise chances of staying

below 2 degrees and to make 1.5 degrees feasible,”… Mary Robinson,

NUI maynooth, Summer 2015

• End fossil fuels for heating and electricity by 2040

• Grid Electricity is a huge challenge (but not for Today’s discussion!!)

• For housing:

– Elimination of fossil fuel at household level.

– Energy Efficiency

– Renewable energy primary and secondary heat.

• Practical implications:

– Airtightness & ventilation

– Fabric

– Wood Pellets or Heat pumps and Grid De-Carbonisation.

Domestic CO2 reduction options

• Credible option A:

• At generational retrofit (30-50 years) – when large works being

undertaken:

– External insulation to foundation, and through soffit.

– Remove ceilings, membrane installation, and replace floor.

– New windows & doors, airtight to fabric.

– Airtightness to 0.6-2 ACH;

– HRV, External Airsource stoves, Heatpumps with UFH.

– 60-80k additional cost Vs Standard rewire/ replaster/ replumb/ reroof.

– BER of 40-65 kWh/M2/annum.

– €300 to heat.

– 1.8M houses @70k = 126Bn Euro.

– It will take 50-100 years at current renovation rate to achieve.

• We have 25.

• We need a cheaper solution.

Domestic CO2 reduction options

• Credible option B:

• At deep retrofit that forgoes very long payback fabric upgrades that costs

less to do, but higher ongoing heat use using RES-E (via grid)

– External insulation only for solid walls.

– Seal up gaps and holes with 3-6 man days labour to achieve 3-5ACH/ Hr.

– New front doors.

– New windows where > 3Uvalue; new glazing where frames have long life left.

– HRV or DCV (i.e. not hole in wall!!)

– Heatpumps with LT rads (COP 3 expected) or pellets.

– 20-40k cost.

– BER of 70-100 kWh/M2/annum.

– €600- €800 to heat vs €1800 (18MWh @10c oil; after boiler).

– 1.8M houses @25k = 45 Bn Euro. (still 8-10 x current retrofit rate!!).

Measures

• Minimum Requirements:

• Heat pumps:

– Need Low Temperature Radiators

– Need longer heating times, therefore airtightness becomes more of an issue.

– If airtightness improved, ventilation needs to be improved.

– Controls need to be integrated (on/ off Vs radiator temperature control).

• Biomass Boilers

– Pellets may be chosen (larger, historic dwellings)

– Log gassification stoves or Boilers may be chosen with self supply, but not likely.

• Secondary heating

– Remove open fires or Install Chain based chimney closure and No HRV.

– Biomass room heater stoves with external air feed.

• Airtightness upgrade (experimental)

– Pre works test.

– Window/ door frame seal upgrade.

– Service openings external and internal sealing.

– Attic AT works (Taping services, Wires from ceiling roses/ conduits, other openings).

– Other AT weaknesses based on a test.

Measures

• Minimum Requirements:

• Ventilation:

– Ideally Whole House Heat recovery Ventilation however:

• Can be excessively disruptive/ costly

• Householder may be tied to Open fires or non balanced flue stoves (HRV not ok).

– Demand Control Ventilation

– Other TBC.

• Real time electricity monitor.

• External access controls

• Hot water tank for Heat pump (i.e. Low temperature coil)

• Passiv Haus Front Door.

Measures

Optional additions:

• Cavity wall insulation

• External Wall insulation

• Attic insulation.

• Windows (frames and glazing)

• Glazing Elements (coated, warm edge spacer, inert gas)

• Solar PV

– All houses will have day / night meter upgrades for the HP.

– High day baseload with HRV.

– Solar Water heater via PV and heatpump!

– Need Low Temperature Radiators

• Low energy Lighting.

– High Quality LED’s

What will we learn

• Consumer appetite

• Consumer attitudes to retrofit

• Financial model test

• Air Permeability reduction

• Heat pump performance appraisal

….. And a huge amount of other data!!

• Non profit, public good social

enterprise

• Partnership approach

• Energy management

• Renewable energy and energy

efficiency

• Procurement, project mgmt.

• Cost effective, value driven

• 12 expert staff

• Paul Kenny

• Chief Executive

• T: 052 7443090

• F: 052 7443012

• E: [email protected]

• W: www.tea.ie

• Cahir

Tipperary Energy Agency

mailto:[email protected]

http://www.tea.ie/

SERVE-ING Tipperary Results & Lessons

Environment