FR

Nice Grid

A project experimenting with the contribution of a smart solar-powered district and of storage to handle demand peaks

 

Number of customers concerned:

  • 1,500 residential customers for peak demand shaving, 100 residential customers for photovoltaic and storage

 

Total budget:

  • €30.2 million, including €10.7 million funded by Enedis

 

The Nice Grid project, located in Carros on the Var plain in the urban community of Nice-Côte d’Azur, aims to set up a “smart” solar district demonstrator. Funded both by the Grand Emprunt (national loan scheme) and European Grid4EU project funds, Nice Grid will take place in several zones: with a residential component, social housing and an industrial estate. It will involve 1,500 customers (residential, business and public building) equipped with Linky meters.

Scope

  • Information provided to customers
  • Demand management / peak shaving
  • Installation of innovative equipment (observation, control)
  • Gestion of ev charging station
  • Power demand and generation forecasting models and tools
  • Advanced functions for managing the grid (status estimation, voltage regulation, self-healing, demand / production balance, active management of distributed resources...)
  • Electricity storage solutions (batteries, electric vehicle)

 

Key stages

Aggregation of curtailment capacities and consideration of a large mesh and a significant number of clients to optimize the impact on the network

  • falseIn summer, shifting of consumption in solar period from 12 am to 4 pm (25%/client in average which represents 5% of extra consumption in the area)
  • falseIn winter, reduction in consumption during the peak period from 6 pm to 8 pm (21%/client in average which represents 2% of HV/MV substation power)
  • Confirmation of the Linky system as an important contributor in the implementation of smart solutions
  • In order to solve strains on LV network, requirement of a large number of flexibility clients and of delivering the needed power at the right place and at the right time

Executing an islanding for a limited period with photovoltaic generation and storage solutions

  • Islanding maintained for 5 hours thanks to the battery and converter
  • Currently complex and expensive solutions to ensure islandings (storage, switching elements, measuring device, management algorithms, …)
  • Solution that might have an interest for isolated sites or weak power supply sites
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