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Nice grid
Smart Grid in the South of France
Hans-Erik Johnsson Saft Batteries
Global Drivers for ESS
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Confirmed increase of Renewables
Lion-share of Investments in Power Gen
High share of EU mix by 2050
Driven by wind & solar
PV has reached competitiveness in many areas
Majority of wind and solar resources are connected to MV and LV grid levels (95% in France)
Grids reach level of RES saturation
Variable Renewable Energies Need for more flexibilities
Need for more ancillary services
Need for local energy management
World average annual renewables-based Capacity additions by type in the New policies Scenario
Source: IEA
- 100 200 300 400 500 600
0 30 60 90 120 150 180 210 240 270 300 330 360
Residual Demand (average Power by day= Energy by day /24)
- 100 200 300 400 500 600
0 30 60 90 120 150 180 210 240 270 300 330 360
Residual Demand with 15% of wind+solar (2020)
-100
-
100
200
300
400
500
600
0 30 60 90 120 150 180 210 240 270 300 330 360
Residual demand with 40% of wind+solar (2030)
Average Variability 30 GW
10 / 70 GW
Average Load factor 5800 h (~70%)
Average Variability 90 GW
30 / 150 GW
Average Load factor 5100 h
Average Variability 200 GW per day
100/300 GW
Average Load factor 3800 h (~40%)
Source: EDF R&D, 25 Sept 2013
Coping with renewable’s variability
3
An ambitious,
innovative project for
a smart solar district
In the city of Carros
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CARROS
TOULON
NICE
MARSEILLE
400 kV line
Carros located in Southern France, in an “electrical peninsula”
Single 400 kV line supplying the area
Already 1,8 MWp of solar PV
10 500 inhabitants, with residential and
industrial areas
20 MW peak load
Carros area description
5
Tier 1 Participants
Participants
R&D and University
Financing and supporting entities
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The Consortium
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Typical Feeder Management
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High penetration of PV Energy in an exsting feeder line
You would like to: Actively manage feeder loading Actively manage feeder voltages
1. Smart meters: 2. Residential storage (4kWh)
3. Feeder storage (100 kWh) 4. Demand-side management
Load and voltage profile of feeder Carros, July 2013
21 clients and 5 PV systems
A smart solar district with active demand
4 objectives
PV Integration into Grid
Activate « Prosumers »
Islanding
Business Models
2 key characteristics
Project based on ERDF Linky architecture
Storage devices at 3 levels within the Grid
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Smart Grid Demonstration Project in town of Carros
Load shedding (winter period)
Combined effort of load management and storage to reduce consumption peaks
typically 18h00-20h00 and in cases of transmission grid constraints
PV Integration (summer period)
Management of maximized PV production on LV network
Shifting of loads (mainly hot water boilers) from night to afternoon
Storing excess energy in batteries
Islanding
Enabling islanding of a single feeder with PV & battery
as sole power and voltage sources
Encourage consumers to adopt smarter habits in accordance with the network state
Four Use Cases
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Allocation of flexibilities
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At primary substation At secondary substations At residential homes
Aug 2014
Sept 2014
Dec 2014
Battery Installations
Which storage asset for which use case?
= ~
= ~
= ~
PV INTEGRATION
LOAD SHEDDING
ISLANDING
√
√
√
√
√ √
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Solution: Storage systems deployed in Nice Grid
- 1 battery at primary substation 1 MW / 560 kWh PCS: Alstom 1MW
- 2+1 batteries 30 kW / 106 kWh Low voltage feeders PCS: Socomec 30kW
- 1 battery « islanding» 250 kW / 620 kWh secondary substation DOCK Trachel PCS Socomec 250 kW
- +/-20 residential batteries 4,6 kW / 4 kWh SMA inverters
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Jan 2014
Autumn 2014
End 2014
Autumn 2014
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1 Megawatt in 20 foot
From Li-ion cells to battery in container
Technical characteristics for 580kWh battery: 20 ft container 3m height - 2.5m width 1.1MW (730V-770Ah) and 14tons
VL41M
Li-ion
cell
24V-80Ah module
29 modules 700V
plus 1 BMM
10 strings of 58 kWh
Battery assembled in //
Secondary Substation Battery
106 kWh
33 kW
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Power Conversion System [PCS]
Li-ion Energy Storage System Unit
[ESSU]
Residential System
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Battery Intensium Home Outdoor 48V – 4 kWh 1 BMM
Disconnect switch
Heater, Temperature and Humidity Sensor
Sunny Island Battery Inverter 6 kW
Conclusions Nice Grid
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A forward looking « real life » demonstrators in MV/LV grids Optimise ways of massive integration of decentralized renewables
Combination of storage, demand side & load management, smart grid technologies
Storage technologies are necessary to ensure security of supply and grid stability in tomorrow’s electicity supply systems Importance and value of « Flexibility Services » will increase
Data acquisition (smart meters, grid monitoring), management and
control software are key enablers
Economic value to be assessed under assumptions of long term evolutions of Grids, energy mix, supply and demand
Cost decrease of storage and smart grid technologies
Saft is active & ready !
New processes for installation and commissioning
Important administrative and safety part
Easy use of the asset
Welcome to visit Nice – Showroom available on invitation!
Utility learned
19
