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Resource: Synthesis of the Factor 4 approach for setting up sustainable strategies for energy retrofitting of social housing building stock and for territorial strategies as regarding energy retrofitting of social housing.

Name of organisation: IEE project "Factor 4" reviewed by FINABITA (I)

Type of ressource: guidance documents

Addressed barriers:

  • financial
  • managerial

Addressed users:

  • building owner
  • design team
  • public decision maker

Language:

  • English
  • French
  • Italian
  • Romanian

Process stage:

  • national/ regional strategy development
  • organisational strategy development
  • asset management

Contact:

Funding Asset Management

Description

This document is a synthetic presentation of the Factor 4 results. It presents first the objectives of the Factor 4 project and then its main result, which is the Factor 4 approach for setting up sustainable strategies for energy retrofitting of social housing building stock and for territorial strategies as regarding energy retrofitting of social housing.
The Factor 4 approach has 4 phases:
- a building typology for selecting representative buildings to analyze
- a building scale LCEC analysis for optimizing the energy retrofitting programme of each representative building
- a building stock (portfolio of a social owner or all the social housings on a territory) analysis
- the sustainable energy retrofitting strategy for the whole building stock or for the whole territory.
These are the main topics of the brochure:

- The Factor 4 project objectives, content and results: the Factor 4 approach
- The main issues for social housing energy retrofitting
- Reminder on social issues in social housing
- The building scale LCEC analysis
- The building scale analysis with the Factor 4 model
- The building stock LCEC analysis (with for example Scenario towards an optimization for a building stock (France), a territorial scale with the analysis of all the buildings concerned by retrofitting actions in a neighborhood regeneration project , a territorial analysis (by local authorities or public administration) for defining the need for public subsidies
- Towards sustainable energy retrofitting strategies for social housing
- Towards a national strategy for energy retrofitting of social housing ?
- The various barriers
- The life cycle energy costing interest and overall recommendations

Implementation

This territorial approach has been useful for setting out territorial strategies of local authorities, for example in France:

-            Municipalities: It has been used by La Calade and SUDEN for setting out a sustainable development strategy (including energy and GEG but also energy precariousness and many other issues) at a territorial (municipal or conurbation) scale, and especially for private and social houses. This research has been made for the French ministry in the PREBAT programme (National energy in buildings research programme). This method has been tested in Roubaix (city in the North of France) and can be used by any local authority. Some local authorities are already interested.

-            Other scales such as the regionThis research is made for the French ministry in the PREBAT programme (National energy in buildings research programme). This method is under test in Puy de Dôme (centre of France).

For more information: outrequin.philippe@gmail.com

Information