ThisprojecthasreceivedfundingfromtheEuropeanUnion’sSeventhProgrammeforresearch,

technologicaldevelopmentanddemonstrationundergrantagreementNo608702.

WP2 - Project Initiation

Key Innovation

Form

S O C I A L H O U S I N G R E T R O F I T T I N G

I N G R E N O B L E : M I S T R A L P R O G R A M

DELIVERABLE INFORMATION

Number D2.1 Reviewers BenjaminGiron(HESP)

Title KeyInnovationForms Nature R–Report

Leadorganization Hespul Disseminationlevel PU–Public;

Mainauthor(s) BenjaminGIRON(HESP) DeliveryDate 25/01/2016

Contributors PerrineFLOURET(GRE) Reviewers N.MOYON(GRE)

VERSION HISTORY

Version Date Author/Reviewer Description1.0 20/06/2014 B.Giron/A.vanderStoep 1

stdraft

2.0 22/08/2015 B.Giron/A.vanderStoep,

I.VandeVyver,S.Broesma

2ndversion

3.0 18/12/2015 B.Giron/S.Broesma 3rdversion

4.0 05/07/2016 B.Giron 4thversion

5.0 08/07+/2016 B.Giron 5thversion

Retrofitting

SOCIALHOUSINGRETROFITTINGINGRENOBLE:MISTRALPROGRAM

MAIN INFORMATION

• Subtitle:retrofittingofthe3MistralTowers

• Principle: The3 towersofMistral districtwerebuilt in

1967. They are composed by 200 dwellings, with 130

kWhEP/ m2 yearly energy consumption.The district is

located in one of the urban policy neighbourhoods of

Grenoble. The owner is ACTIS, a metropolitan public

social landlordontheGrenoblearea.Thebuildingsare

connectedtothecitydistrictheatingNetwork.

Theretrofittingaimstoreach64kWhEP/year.m2 (-50%)

byanimportantworkprogram:externalshellinsulation,

radiators replacement, controlled heat recovery

ventilation.

• Location:72,74,76,avenueRhinetDanuble-Grenoble• District:MistratDistrict

• WorkProgress:

• Visitorinformationcontacts:- LionelTOURDRE,BranchManageratACTIS

lionel.tourdre@actis.fr- GillesBILLION,RealEstateBuildingatACTISgilles.billion@actis.fr

- David-AlbertBILLIOTTE,ProjectmanageratLaMétro

david-albert.billiotte@lametro.fr

• SocialInnovation:

The SPIRAL Methodology (Societal Progress

Indicators for the Responsibility of All), is an

European social approach to make cityzens

build their own well-being indicators. The

method is deployed in 3 cycles (preparation,

mobilization, integration) of 8 steps. It has

already been tested from Sept. 2014 to Jan.

2015 in Mistral for the beginning of the

renovationprogram.

SPIRAL Methodology will be adapted to the

energy retrofitting works, to better commit

and understand the inhabitants expectations.

intermsofenergyawareness.

OPPORTUNITIES, BARRIERS AND SOLUTIONS

Opportunities Barriers/Challenges Solutions

Technical

- Target:64kWhEP/year.m2

forheating,ventilatingand

cooling,hotwater,lighting

- #-50%oftheenergybill

- The3buildingsare

connectedtothecity

heatingnetwork.

- Theconcretearchitectures

(60’s)enablestheexternal

shellinsulation

- Externalshellinsulation

- Radiatorsreplacement

- Controlledheatrecovery

ventilation

- DeploymentoftheVivaCité

tool(multi-energymonitoring

interface)

Political/Legal

- TheLocalUrbanismPlan

allowstheretrofittingworks

(externalinsulation)

- TheEnergyretrofittingispartofalargeurban

renewableprogram

- TheEnergyperformanceis

basedontheFrenchLow

EnergyPerformance

standards(non-regulatory)

- Theenergyperformanceisa

contractualobligationforthe

GeneralContractor

- TheSocialOwneris

supportedbyanEnergy

technicalconsultant

Financial/Economic

- FinancialcontributionofCity-Zen=50€/m2(#3.500

€/dwelling)

- The VivaCité tool (multi-

energy monitorig interface)

would propose a buying

purchaseapproachofenergy

saving.

- Thecalendarandfinalcostwillmainlydependonthe

generalcontractor,which

isn’tyetdesignated- Vivacitétoolisbeingtested.

Someoptimizationmightbe

needed.

- PeriodicworkingprogressbetweentheSocialownerand

thegeneralcontractor.

- Themonitoringphase(inCity-

Zen)willallowtomeasureand

improveVivacitéservice.

Social

- SPIRALmethod,dedicatedto

theself-beingindicators,will

beadaptedandtestedfor

theenergycitizenapproach

- Socialacceptancefrom

inhabitantoftheretrofitting

works.

- Energyremainsaminor

factorofwell-being

regardingothersocialissue:

security,unemployement,

education,…

- Energyawarenesscampaign

willbeconductedby:

ALEC38(EnergyLocalAgency)

andthelocalfacilitationteam

fromthesociallandlord

Environnental

- TheSocialhousingretrofittingisoneofthe

strategicaxisoftheGrenoble

EnergyClimatePlan(25%

reductionoftheinhabitant

consumption)

- Theenergyconsumption

reductioniswell-integrated

bythesociallandlord

- But,energysavingisnotthe

mainconcernforinhabitants

comparetocleanlinessor

wastemanagementissues.

- TheSPIRALmethod,willbe

adaptedtostrengthten

inhabitantstoenergy

awareness

NEWS & LINKS

• MISTRAL district urban renewal (French): http://www.grenoble.fr/304-renovation-urbaine-et-sociale-mistral-eaux-

claires.htm• SPIRALMethodology:http://spiral.cws.coe.int/tiki-index.php• SPIRAL,retourd’expérience(French):

• City-Zennews:http://www.cityzen-smartcity.eu

• Grenoble-ALpesMétropolenews:http://www.lametro.fr

• CityofGrenoblenews(French):http://www.grenoble.fr

SOCIALHOUSINGRETROFITTINGINGRENOBLE:MISTRALPROGRAMTECHNICALSUMMARY

DESCRIPTION OF THE INNOVATION AND RATIONALE FOR THE SELECTION

TheSocialhousingretrofittingisoneofthestrategicaxisoftheGrenobleEnergyClimatePlan,whichaims25%reduction

of the inhabitant consumption for 2020. TheMISTRAL Retrofitting program is one of themost important on going in

Grenoble with more than 200 dwellings, of the 3 iconic towers of this working class district to reduce their energyconsumptionbyhalf(64kWhEP/year.m

2).Becauseinhabitantbehaviourisoneofthemostimportantcriteriatoreachthe

energy performance, SPIRAL european method would be tested among groups of inhabitant. By SPIRAL method,

inhabitantwillco-constructtheirownwelf-beingindicatorsdedicatedtoEnergyconsumptionfield.

LEVEL OF DEVELOPMENT (REGARDING THE EC SCALE, THE TECHNOLOGY READINESS LEVEL)

- Technicalenergyretrofitting=>TRL8:Everyaspectoftheleveloftechnicaldeploymenthasbeenalreadylifted.The

refurbishmentprocesshasbeensuccessfullydevelopedandtestedtoreachtheenergyperformanceofCity-Zen:

Externalshellinsulation,Radiatorsreplacement,Controlledheatrecoveryventilation

- SPIRALeuropeanmethodology=>TRL4:SPIRALMethodologyhasbeenalreadytestedwithinhabitanttoconstructthe

weel-beingindicators,todrivesocialpoliciesorproject(see:https://wikispiral.org/).Butithasneverbeentestedinthe

fieldofincreasingtheEnergyawareness.Thisexperiencemayprovideanewwaytoconnectsocialissueswithenergy

transitionchallenge.

WHAT ARE THE MOST RELEVANT DEMONSTRATION PROJECTS?

AfirstmassivecampaignofrenovationwererealizedinMistraldistrictinthe90’s,toreachtheperformanceof131kWhEP/

m2.yearwiththefollowingworks:Externalshellinsulation,windowsreplacement,single-flowCMVinstallation,

replacementoftheDHCsubstation..Theaimsisnowtodividethatenergyperformanceper2,inludingotherstopicsofthe

urbanrenewal(publicspace,commonportions,…).

SPRIRALMethodologyhasbeentestedintheMISTRALDistrictbetweenSept.2014andJune2015.110inhabitants(or10

groups)wereinvolvedinthe2firstphases(Preparation&Mobilization):fromprimaryschoolpupilstosenior’sclub.

ThemainresultsweretostrengthenmediationbetwweninhabitantsandtheSocialLandlord,maintenance&cleanliness

ofthedistrict,imrovethecommunitylifeandtheinter-generationallinks.

EXPECTED IMPACTS OF THE INNOVATION

TheprincipleoftheSPIRALmethodologyishavingthestakeholderscoconstructtheindicatorstospecifythemainaxisthey

wanttotakeintoaccountforabettersocialcohesion.Inthiscontext,SPIRALwillbetestedinthefieldoftheEnergy

Retrofitting.

¨ ImpactonEnergy(supplyorsavings)&greenhousegasreductionexpected

- SPIRALapproachisexpectinghelpstostakeholderstosharetheenergyawerenessinthesocialhousingdistricts,

wherethistopicisn’tapriority.ItshouldalsohelptheSocialLandlord,themunicipalityandthelocalenergysupplier

tobetterunderstandtheinhabitantsenergysavingsexpectationsandmotivations.

- Socialhousingretrofitting:thereductionoftheregulatoryenergyperformanceshouldsignificantlyreducethe

tenant’senergybills.TheVivacitémonitoringwilspecifytheproportionofthesavingsmade,intermsofeuros,kWhEP

andCO2emissions.

¨ Widerpotentialbenefitsforcities

- SPIRAL:shouldhelptoimprovethedesignofthepublic interfaceVivacitétool,developedbyATOS&GEG(seethe

dedicatedKIF).

- Socialhousingretrofitting:The“workpackage”deployedinMistral,takingintoaccountthetechnicalbuilding

characteristicsofthe60’s(concreteandprecatsedstructure)

¨ Otherimpacts

- SPIRAL: ItwouldbetheopportunitytotestthismethodologywiththeSosialLandlord,whichwasn’t involed inthe

firstexperience.

- Socialhousingretrofitting:tobespecifiedafterwards

TECHNICAL FEASIBILITY AND SOCIO-ECONOMIC VIABILITY

- SPIRAL:Thereisnotechnicalfeasibilitytodeploythismethodology,excepttohavetrainedandskilledstakeholders.

- Socialhousingretrofitting:Thetechnologydevelopedfotheretrofittingareproperlymastered:externalshell

insulation,radiatorsreplacement,controlledheatrecoveryventilation.ThedeployementoftheVivaCitétool,willbe

theonlytechnicalinnovationtoensuretheassessmentoftheenergysavings.

INTEGRATED MEASURES

¨ Integratedmeasurescombiningmultipleofthedomains:buildings,smartgridsanddistrictheatingandcooling

- SPIRAL:themethodwillcombineenergysavings(fromuserspointofview),retrofittingworksandsocialcohesion

- Socialhousingretrofitting:Theworkswillcombinethedistrictheatingandcooling,thebuildingsshellinsulation,the

multi-energy,

¨ Whichotherstakeholderswouldneedtobeinvolvedintheimplementationofthekeyinnovation?

- SPIRAL : the Mistral tenants and representative inhabitants/associations of the Mistral district (to be specifiedafterwards)

- Socialhousingretrofitting:ThemainstakeholdersimpliedaretheSocialOwner(ACTIS),theGeneralContractor(tobe

designated),ATOS/GEGfortheVivacitémonitoringtool,andthetenantsofthe“showflats”.Asocialconsultantwill

beinchargeofthetenants’involvementduringtheproject.

CHALLENGES TO BE ADDRESSED BY CITY- ZEN

ThemainsbarriersidentifiedforthetenantsandinhabitantsoftheMistraldistrictarerelatedtothefactthat

Energybillisnotamajorconcernforthem:technicalbarriers,relativefinancialsavingsexpected(#300/500€

peryear)comparedtothesustainablechangeofhabitstodo,….Thiseffortsarenotjudgedurgentsregarding

theirprecarious situation.TheSPIRALmethodologyand theVivacitémonitoring toolwill try toproposenew

toolsandapproachestomeetthischallenge.