Lyon Smart Community: energy efficiency is the key-word, explains the Greater Lyon's Director of Energy

21 December 2012

Coupled with IT solutions the smartgrids are intelligent networks capable of registering information about their own functioning. The objective? To capitalise on the data provided and optimise the production, distribution and consumption of energy.

The concept covers all the four tasks of the "Lyon Smart Community" programme, the building of an intelligent building, the design of a shared pool of electric vehicles and the introduction of energy audits in homes and all of this linked to a system which drives and analyses the overall data.

Ikari, shining a light on the intelligent building

The 1st task concerns the construction of a mixed use 12,000 m2 building: Hikari, light in Japanese, sited by the waterfront in Lyon Confluence. Beyond the commonly agreed characteristics for buildings creating positive energy, the building includes:

  • production of electrical energy from photovoltaic panels on the roof and the facade,
  • storage of energy with SCiB batteries developed by Toshiba,
  • integrated energy distribution, with in the putting in place  of a control and monitoring system for the building.

"Ikari has a large number of captors installed in different parts of the building, programmed to recover information on the energy networks (electrical, heating, gas) installed" explains Eymeric Lefort, Head of the Greater Lyon Energy Commission.

Here we can find captors connected to the electrical circuit, electric plugs, heat probes, hot water, light and meteorological conditions captors etc. These many captors register consumption and, coupled with actuators control energy usage around the building: regulating heating and air conditioning, opening and closing of windows, turning on and off lights and electrical equipment...

Shared vehicle pool, a balanced energy target

The 2nd task targets those who work around the Lyon Confluence site and those who use the area with the deployment of a fleet of electric vehicles that are self shared and use energy produced by the photovoltaic system.

"The distribution and switching between sources of renewable energy production on the one hand and the need to recharge electric vehicles on the other is a large challenge for the project explains the Head of the Greater Lyon Energy Commission.

Eco-renovation, a very high level energy use monitoring

The 3rd task concerns the 275 social housing that is being renovated in the Cité Perrache. Here the captors which measure (water, gas, electricity) encourages the introduction of high performing audit systems in order the help those living in the buildings manage their electrical consumption.

"The system will supply readings that are refined through usage" explains Eymeric Lefort. The captors installed sends the data to an energy box which uses the information and send information to inhabitants who will then acquire a very precise understanding of their consumption in real time.

"Beyond accurate measuring, a shared network around questions inherent in energy consumption will be created" says Eymeric Lefort. "Households will be able to compare, anonymously, details concerning consumption, and communicate with other inhabitants of the Cité Perrache."

CMS, optimised management of energy, at neighbourhood scale

The Community Management System (CMS) is an overall management and distribution system for energy data from the demonstrator on a neighbourhood scale.

As well as the data from the three tasks, the CMS will upload information from the neighbourhood such as overall electricity consumption, local weather, air quality, the permanent production from the future Lyon Confluence heat network, electrical generation from the photovoltaic units etc."This information will allow us to establish efficient consumption for each equipped building: kWh and CO2 emissions: in such a way as to supply an energy audit tool at neighbourhood level."

"Lyon Smart Community", opening up the field of the possible

Greater Lyon is researching an energy model that will be able to meet the requirements of the region and the community. For Eymeric Lefort, "the Lyon Smart Community demonstrator is a vital stage in the trialling the idea of energy efficiency and judging the pertinacity of the Micro Grid on a neighbourhood scale.

After the official launch, Lyon Smart Community is now entering its operational phase with the construction work at the start of 2013. Delivery is expected in 2015.