FR

Energy transition and smart grids

Although a portion of the grid is already “smart”, the growth of renewables and the new usages of electricity press to continue the modernization of the grid.

The energy transition: an industrial and societal challenge

Integrate renewable energy and new uses of electricity in the most efficient way, are Enedis everyday challenges.

 

Enedis deals with technical issues of:

  • Intermittent and unpredictable production
  • Variable power demand, geographically spread linked to the recharging of electric vehicle.

 

Injecting electricity directly into the distribution grid at multiple points tends to disrupt voltage levels, which in turn can place the electrical equipment of customers at risk. Facing these new constraints, Enedis is experimenting solutions that contribute permanently to the local balance between supply and demand of electricity, with the will to maintain the best quality of supply.

Key figures for the energy transition in France
48 GW of renewables in 2023
6 GW of consumption cut-off in 2023
Up to 7 millions of charging points in 2030
35 millions of Linky smart meters in 2021

95% of renewable energy sources are connected to the distribution grid managed by Enedis

Today there are a vast number of producers of renewable energy, solar in particular: while there were practically none in 2005, more than 350,000 solar power producers are now connected to the local low-voltage grid.

Objectives of the European Union:

20% of renewable energy in the EU’s energy consumption by 2020 (meaning 23% for France: 33% in heat-producing, 27% in electricity and 10,5% in transports).

 

Objectives of the French energy transition law for the green growth:

  • Reducing by 50% the energy consumption from 2012 until 2050
  • Reducing by 50% the nuclear share in the energy mix by 2025
  • Reducing by 30% the consumption of fossil fuel from 2012 until 2030
  • Reaching 23% of renewable energy in the energy consumption by 2020 and 32% by 2030
  • Reducing by 40% the greenhouse gas emission from 1990 until 2030.

A new paradigm for the grid

 

Today’s grid was initially designed to transmit electricity in just one direction, from power stations to consumers.

yesterday

A smart grid must allow electricity to flow in both directions to cater for the electricity produced using renewable energy sources.

Today

Smart grids must also allow the development of new electrical applications, including electric vehicles.

 

 

 

Enedis continues to modernise the grid

Enedis has opted for new technologies and investments optimisation to meet the energy challenges.

To prepare and support this major technical shift, Enedis is investing in numerous demonstrators in France and Europe. Their aim is to design tomorrow’s « smart grids », solutions combining electricity and NICT. The Linky smart metering system is a core element of this new system.

The integration of new technologies will allow these grids to feedback information. It will make it possible to analyse the actions of the electrical system’s various stakeholders so as to guarantee the efficiency, reliability and security of electricity distribution.

With all these technologies that come with Smart Grids, it is possible to manage the network balance in real time, by adapting consumption to production. The adjustment in the future will shift towards the demand side, making the consumer an active player. Enedis is contributing to the development and the smooth running of the whole system.

 

Smart Grids development relies on real condition experiments (equipment, software tools, telecommunications…)

Smart Grids are the combination of advanced power network solutions and information and telecommunication technologies. The following solutions are currently tested by Enedis on its pilot projects.

Implementation of smart meters / sensors that give precise information about the network state and consumption profiles.
Development of advanced software (incidents location, self-healing, voltage control…).
 
Implementation of data exchange system with decentralised generation sites.
Solutions for active downstream meter management (demand and storage management).
 
Development of tools to forecast local consumption and production, and tools to simulate possible constraints on the local scale (8 days to one hour ahead power-flow forecasts).
Implementation of advanced digitised equipment in primary substation (transformation system from TSO to DSO, HV to MV) and secondary substation (transformation system from MV to LV): digitised controls, voltage regulation…
 

Raising awareness among consumers and local authorities about the energy demand management

  • Free, secure and instructive checking of consumption data.
  • Providing information for local authorities to develop local energy plan (PCET – Plan Climat Energie Territorial) and efficient energy policies.

 

Securing the power supply

  • Optimisation of the MV and LV networks control allowed by an observable and remotely managed network
  • Provisional management of maintenance work from forecasts, simulations and priority investments thanks to data collection on the grid.

 

Making the incorporation of renewable energy sources easier

  • Creation of new connections offers to welcome more RES producers on the MV network enabling to maximise the network potential of integration
  • Coordination with the decentralized producers to regulate the voltage level on the grid
  • Production (wind and solar) and consumption forecasts to foresee the local supply-demand balance
  • Possibility for the electricity supplier to propose pricings and/or services to manage household equipment and to consume when there is local generation.

 

Participating in the electric and plug in hybrid vehicles development

  • Coordination between consumers and charging stations operators to contribute to the smart monitoring of charging
  • Optimisation of charging stations installations considering the potential of integration of the grid.