Welcome to Grenoble « Sustainable city »From the first Eco-Districts

to the EcoCity

Dr Xavier NORMANDProject manager « Sustainable city »City of Grenoble NET ZERO CITIES CONFERENCE, 2013

Grenoble in briefMain city of the French Alps- City : 160,000 inhabitants- Metropolis : 400,000 inh.- Urban area : 700,000 inh.

#5 in World's 15 Most Inventive Citiesaccording to

The « Grenoble Facteur 4 » action plana framework for city planning

2008• adoption of the EU Climate and Energy Package (3x20),

Grenoble is part of the first signatories of the Covenant of Mayors• the « Grenoble Facteur 4 » 32-action plan was launched by the newly elected

municipality as the framework of an integrated environmental policy including the objective of dividing GHG emissions on the territory by 4 in 2050 :

• Actions deal with thermal improvement of buildings, energy efficiency, development of renewable energies, clean and soft mobility, natural ressources, education ; the list was fixed for the 5-year mandate

• An observatory for GHG emissions and energy consumption has been set up• Progress is monitored on a monthly basis by a group of Deputy Mayors, with a

debate every year in Town Council• It includes an « eco-citizen » participative programIt should be extended in 2014 at the « Metropolis » level

Grenoble Facteur 4: energy and GHGemission observatory

2001-2011: Eco-districts 1.0

Eco-districts: -Towards energy self-sufficiency : . positive energy building . gas-fired cogeneration- Urban transport- Social and functional mix- High environmental quality- Project follow-up (incl. support and training for the building companies) and district monitoring

Grenoble was part of SESAC (Sustainable Energy Systems in Advanced Cities), a project of the CONCERTO European Program (cf. www.concerto-sesac.eu), together with Växjö (Sweden) and Delft (the Netherlands)

Eco-districts are a major step on the path to sustainability:- De Bonne district won the first "Grand prix EcoQuartier" in 2009 and became the matrix for all new urban planning projects- High-energy performance buildings (BBC) became the "norm" in Grenoble, especially for social housing, thanks to a strong commitment for quality of building companies; it is now the standard for all buildings in France (RT2012, new thermal regulation => 50 kWh/m2/year)- High Environmental Quality standards are used for all new projects

The step further, the EcoCity

Working on the city scale

De Bonne district

The Presqu’Ile districtincluding the « GIANT » innovation campus

Christian de Portzamparc Architecte Urbaniste

Welcoming inhabitantsinto the innovation campus

CENTRALE PRODUCTION DE CHALEUR

INDUSTRIES / RECHERCHES LOGEMENTS

COLLECTIFS

BUREAUX

PROCESS

PARC DE SONDES GEOTHERMALES

CENTRALE PRODUCTION DE CHALEUR

INDUSTRIES / RECHERCHES LOGEMENTS

COLLECTIFS

BUREAUX

PROCESS

PARC DE SONDES GEOTHERMALES

Integrated urban design

… a systemic approach

Integrated urban systemLiving in the EcoCity

Smart grids : - remote control electrical equipement- multi-fluid / energy monitoring display

Vertical gardens : town houses, mountain views, optimized thermal performance

Low temperature reversible heating & cooling loop

Mobility system : - no private parking- real time information- multi-modal « mobility centers »

30 kWh/sqm/yr total energy consumption with limited extra-cost

Mutualized rooms and open space at city block scale

New mobility strategyMoving in and around the EcoCity

Step 1

Substitute individual vehicle by shared vehicles

Mutualized management of parking (residents / workers / …)

Offer convenient, moderate-cost, easy to use mobility solutions

Switch to hybrid / electrical cars with solar power supply and smart management of batteries

Complete public transport with car-sharing and last-mile solutions in the « Mobility House »

All parking places under public control : « Mobility House »

« Mobility Pass »

Offer easy charging facilities (at home / at work)

Step 2

Step 3

Step 4

Energy managementExperiencing a positive energy district

Between the traditional centralized production modeland the new theories of individual energy producer-manager,

find the relevant scale : the positive energy district

100% renewable electricity, managed by the smart-gridProduction Biomass cogeneration 25 GWh/y

Solare PV (ESRF, parkings) 2,4 GWh/yHydraulic 7 GWh/yTotal 34,4 GWh/y

Consumption New buildings all usage 24 GWh/yLow-temp loop pumps & heat pumps 1,4 GWh/anPublic lighting 0,6 GWh/anAvailable for electro-mobility 8,4 GWh/an

Heating and cooling using renewable and recovery energyReversible low-temp loop : 100% of the heating / cooling needs of 150,000 sqm new buildingsBiomass cogeneration plant : 135 GWh/y high temperature available for the city heat network, 4 times the consumption of the district

Two technological platforms (Grenoble and Lyon ) for 1,000 residential customers and 40 commercial and industrial sitesIntegration of renewable energy sourcesSmart meteringSearching for new business models

Smart gridGreenLys: a full-scale demonstrator