Deep Retrofit Pilot Programme

The existing housing stock in Ireland continues to pose one of our greatest energy efficiency challenges. A considerable portion of the current building stock performs poorly when compared against a building built today.


Retrofit progress to date

More than 330,000 homes have benefited from SEAI's Better Energy grant schemes. Home-ownners, Communities and those who are more vulnerable living in our community have all experienced the benefits of getting their homes upgraded with SEAI. The types of measures carried out in these energy upgrades included attic and wall insulation, heating system upgrades and controls and renewable technologies.


What is deep retrofit?

Deep retrofit is the significant upgrade of a building toward nearly zero energy requirements where it is practically feasible and achievable. Rather than upgrading isolated parts of the house, the whole home should be assessed as a system, looking at how energy is used and retained. All aspects of the building fabric, air tightness, ventilation and renewables should be assessed.


SEAI's deep retrofit pilot programme

SEAI will shortly commence the first of multi-annual pilots which will investigate the challenges and opportunities that deep retrofit present. The learning from these pilots will inform our approach and support towards the large scale deep retrofit of buildings in Ireland.

The initial focus will be on the residential market. The government has allocated €5million in 2017 to commence some deep retrofit pilots. In addition, SEAI will be focussing on deeper retrofit in other programmes such a Better Energy Homes, Better Energy Warmer Homes, Better Energy Communities and the Warmth and Wellbeing Programme.

Funding will be provided to projects which demonstrate an integrated, comprehensive strategy for significantly improving home energy performance. Projects will generally comprise:

  • Whole house solution which includes a fabric first approach
  • Minimum BER uplift of 150-200 kWh / m2 / yr to minimum BER A3
  • Deployment of renewable solutions supporting transition from fossil fuels

To maximise the learnings from the pilot, SEAI aims to fund a range of projects which support:

  • A range of building archetypes.
  • Development toward large scale deployment
  • Regulatory development
  • Multiple customer benefits


It will be at SEAI's discretion to fund projects which will advance these learnings towards the longer term objectives of the pilot.

Full details on how to get involved in the 2017 pilot programme will be published shortly. In the meantime, if you have a project which you believe supports the objectives of the pilot and may qualify for funding, then please contact us at

As part of SEAI's engagement with stakeholders SEAI will host its inaugural National Deep Retrofit Conference on June 21st in the Aviva Stadium, Dublin. Keep an eye on our events page for more details.


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