Welcome to Grenoble « Sustainable city » From the first Eco-Districts to the EcoCity Xavier NORMAND oject manager « Sustainable city » ty of Grenoble NET ZERO CITIES CONFERENCE, 2013
Nov 03, 2014
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