les actions d’orange pour réduire les impacts ... · france, belgium, moldova, poland, romania,...
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Les actions d’Orange pour réduire les impacts environnementaux de ses Infrastructures Réseaux
Journées Jacques Cartier
ENS Lyon 12 Novembre 2018
Marc Vautier Orange Labs Networks
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2 Interne Orange
Orange Commitments
Energy Efficiency
Circular Economy
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3 Interne Orange
Les 3 axes de notre politique RSE
Digital trust Operator
Orange actor of ecological transition
Contributing to socio-economic development
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4 Interne Orange
Reduce by 50% CO2 emission per customer usages Orange member of Global Climate Action
Integrate Circular Economy principal in all our processes Orange member of Fondation Ellen MacArthur
- 50%
CO2
Orange Commitments
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5 Interne Orange
Part I
Energy consumption
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6 Interne Orange
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7 Interne Orange
Energy Action plan L.Dubois, J.Mesnage, S.Le Masson… (TGI/OLN)
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8 8 Orange confidential
Energy Action Plan Scope
Energy
Countries
Excluded
Domains
Electricity & Fuel
IT and Network (Radio Access Network, Fixed Acces Network, Technical Environment, Data Center, middle and core network)
France, Belgium, Moldova, Poland, Romania, Slovakia, Spain, Botswana, Cameroon, Congo Democratic Republic, Egypt, Guinea Bissau, Guinea Conakry, Ivory Coast, Jordan, Madagascar, Mali, Mauritius, Morocco, Niger, Senegal, Tunisia
OBS, Orange Marine, Real Estate, Retail, Vehicle Fleet, Gas consumption…
Objectives Reduce Energy OPEX
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9 Interne Orange
Energy Action Result of Electricity consumption & OPEX
Stabilization of energy consumption despite growth in networks (geographical & techno) and usages
Saving since 2010
Yearly energy consumption
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10 Interne Orange
Equipment renewal and shared RAN infrastructures, brought more than 70% of
2017 savings
2017 ITN electricity consumption savings per lever
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11 Interne Orange
400 Vdc D.Marquet & O.Foucault (TGI/OLN)
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12 Interne Orange
Why 400 V DC?
Objectives
Develop unique powering system: 400 V DC (ETSI normalized, ITU-T)
Simplify architectures and installations
Improve efficiency and reliability
Reduction of Capex and Opex
Context : Different voltages and currents used
– 48 V DC for telecom equipment,
– 230/400 V AC for Data Centres,
20000VAC
Electricity
Grid
400VDC
Battery
Telecom
Equipment
Telecom
CrossBarDSLAM
CrossBar
DSLAM
IP
Server
Green
Generator
400VDC
230VAC
PERMANENT
CrossBar
IP
Server
SECURIZED
400VDC
400VDC
Energy
Station
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13 Interne Orange
400 Vdc solution … some advantages
3 - AC UPS 400V : which saving ?
7 to 15% energy saving compared to AC UPS big unit used at 30% load in 1+1
AC/400 modules : simple & reliable like AC/48, very low maintenance OPEX
3% saving in new 400VDC server PSU
1 – Better sustainability, LCA and circular economy aspects (ITU-T 1400 series)
less copper, less electronic, less battery because less cable loss and no inverter
longer lifetime and more reuse possibility as high MTBF and simple to operate
less maintenance and fuel for maintenance trip
2 –Renewable Energy and smartgrid services are easier to implement
DC coupling of PV as defined in L.1205
less instability risk in DC when enabling load shaving, islanding and also full soft DC coupling of Diesel engine
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14 Interne Orange
Cooling D.Nortershauser, S.Le Masson (TGI/OLN)
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15 Interne Orange
Power density is increasing
3 racks 1 cabinet
Enough heat for 8 houses
40 to 48 kW
hot spots problems and cooling high energy consumption
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16 Interne Orange
Not sufficient to cool high density cabinets
Low energy efficiency
Reliability issues due to hot spots, dust, humidity
No efficient and cost effective heat reuse
Switching to liquid cooling is necessary
Air cooling is not adapted to ICT equipment evolution
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17 Interne Orange
• Use a rear-door heat exchanger to remove heat from servers
• Cold water or ambient water are possible
• Possibility to reuse hot water (heat is rejected outside otherwise)
• High savings energy: just need pumps
Liquid cooling at cabinet level
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18 Interne Orange
Liquid cooling at component level
• Exchangers are in direct contact with the components
• Hot water (30-70°C) can be used
• Components with power consumption less 2 Watts are generally ignored
• No airflow → fans and heat sinks are removed
• Small pipes diameters introduce high pressure drops in water loop rise of pump power consumption
• Geometry of exchangers depend of the servers
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19 Interne Orange
• Two types of immersion cooling:
No phase-change: IT equipment are cooled by naturel convection.
Phase-change (research): liquid will evaporate on contact with hot spots (components with high heat dissipation). Gas returns to liquid on the condenser.
• No airflow: fans and heat sinks (in most cases) are removed
Condenser
Liquid cooling by immersion
ICT equipment
Cooling fluid
Phase change system Oil-based cooling system
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20 Interne Orange
Circular Economy S.Vaija (TGI/OLN)
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21 Interne Orange
Current economy mainly based on the take – make – dispose principle
WEEE (waste of electric and electronic equipment) = hardly recovered and recycled
EU 2015 : 10 million tons of electronic equipment put on the market and 3 millions tons recycled
Switch from linear to circular economy
Extraction of natural resources
Product manufacturing
Waste disposal (landfill)
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22 Interne Orange
For functional network equipment, which can still be required by others affiliates inside Orange Group
A platform to facilitate communication on 4 main actions:
Request – someone is looking for an equipment, for ex. not available locally
Excessive stock – someone has an excessive stock of equipment available
Resell – someone is willing to destock equipment, i.e. sell them with a discount
Exchange – someone has placed an order to a supplier, the product has not yet been delivered and it can still be delivered elsewhere
Reuse, « Stock Market Place » Orange in-house platform
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23 Interne Orange
Strategy launched within Technical Decision Committee in 2017
Two main ideas: cope with CAPEX constraint and sort suppliers (black & white lists)
Buying second hand equipment = strong lever for environmental footprint reduction and also useful operationally speaking:
Price level from -30 to -90% of Orange price
End Of Life legacy equipment no more available on the Original Equipment Manufacturer (OEM) market
Opportunity to acquire spare parts for older equipment (buy entire equipment and disassemble it for spares)
Can be bought from Brookers (equipment tested in laboratories, include a 12 months warranty. 10 broker partners have been sourced by Orange Group)
One thing to remember: be aware of environmental regulation when purchasing second hand
Reuse - Second hand equipment
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24 Interne Orange
For all Energy related products (ERP) CEN/CENELEC (JTC 10 Energy-related products - Material Efficiency Aspects for Ecodesign) are currently developing General method for the assessment of:
- Durability
- Ability to re-manufacture
- Ability to repair, reuse and upgrade
- Recyclability and recoverability
- The proportion of re-used components
- Recycled material content
- The use of critical raw materials
Standards should be available in 2020
For the different types of equipment specific standards will be developed afterwards by dedicated standardisation bodies (ex. ETSI EEM-ICT)
Introduce circularity in network equipment RFPs
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25 Interne Orange
Trying to narrow the questions
Selective recycling and refurbishment: How are the processor’s heatsink
fastened?
Critical raw Materials content: High concentration in specific
components? Upgrade:
Available empty slots for key components?
Recycle content: Intentionally added post-
consumer recycled material?
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26 Interne Orange
12 questions for the allocated between the 6 criteria (Durability, Reparability, etc.)
For each question a certain number of points are awarded according to the achieved performance
Remanufacturing time for field-serviceable components according to time
Type of fasteners used on electronic boards according to reuse potential / possible damage
Score on each criteria weighted t according to importance regarding Orange circular economy strategy and expected reliability of manufacturer answers
Reparability important topic for equipment lifespan and avoid “beyond-repair” failures = Weight x 5
Critical Raw Materials difficult to obtain answers from manufacturers, new topic = Weight x 1
Circularity KPI = score out of 100
Circularity KPI design based on questions added in RFPs
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27 Interne Orange
Electronic equipment recycling process = shredding + some materials recovery Recycling process focus on recovering precious metals from the motherboard, copper from cables and plastic/steel/aluminum scrap from casing
Snapshot of current recycling process
Massify electronic waste
Furnace and refining operations
About 20 metals are recycled with a 90 to 95% efficiency
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28 Interne Orange
Two problems with this end-of-life process Some metals/critical materials are not recovered All the production effort to manufacture the component (e.g. energy used in factories) is lost Collaborative project with EcoSD eco-design network and several universities Case study: when devices are phased out should we recover some component for reuse/resell? If so, how to process for a maximum recovery efficiency?
The best current process but not without flaws
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29 Interne Orange
Integrated circuits, different ways to recover and rework them Challenges:
Keep the heat level at a minimum to avoid damaging the circuit
Manual operations are cost intensive, some automation is required
Some components might not be interesting for resell, but they contain high concentration of critical raw materials (e.g. Tantalum capacitors), selective recycling could be an opportunity
Are the manufacturers ready to use second hand components in their equipment? What insurances, quality controls are required?
Electronic components recovery challenges
Hot air Infrared Laser
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Thank you