Slide background


The idea is to produce local resources by treating wastewater locally.

The idea is to integrate this production system in buildingsso that no floor space is used.

The idea is to adapt it to the city, to eco-neighbourhoods, to the industry, and also develop it in mobile structures (Freewaterbox).

The idea is to combine economic expertise and ambition for the environment and future generations.

The idea is to have a big idea… and provide the necessary resources.


A passion to develop an environmental system, on the basis of circular economy, by transforming waste into resources on site.
This approach reflects Ennesys’ profession in the heart of the energy transition and takes three major issues into account: reducing the carbon footprint, water supply and simultaneous energy production.



Antoine de Saint-Exupéry, Terre des Hommes, 1939

Our philosophy is to combine scientific expertise and economic ambition for the environment and future generations.

Scientific expertise and economic ambition to: 

• Promote effective solutions of waste recovery, adapted to sites and local uses

• Provided that these solutions are economically efficient… ensuring their durability

• Promote sustainable economy, according to short supply chains, creating and/or maintaining local jobs

• Eliminating economic growth disparities caused by unequal access to resources

• Promote the decentralisation of energy and site autonomy

For the environment and future generations to:

• Alleviate the effects of the world’s demographic growth through a solution which minimises society’s impact on the environment

• Protect “water” resources and ensure greater accessibility,

• Make waste a raw material (and not the other way round!)

Simple values that keep the Ennesys team going on a day-to-day basis to develop effective remediation solutions in ecological, as well as economic terms.

It is not surprising that this interests all players who are economically or politically involved, in particular:

• Local or national political leaders, wanting to promote more virtuous environmental strategies

• Public or private managers of remote sites, which do not have sufficient water and/or energy resources

• Public or private investors in developing areas with a lack of infrastructures


Pierre Tauzinat, President and CEO

At 53 years old and a graduate from HEC EMBA, he has mainly spent his career between the High-tech and Pharmacy sectors with a particular expertise in markets in the Asia-Pacific region, where he operated technology transfers, established foreign product lines, then strengthened their distribution networks for over ten years, especially from Tokyo, where he lived. Throughout these years, he acquired knowledge of microalgae applications and he understands their potential.

When he came back to France, he helped create an industrial start-up business in the microprocessors sector, and managed in particular the development and integration of innovative technology programmes for markets in the security and renewable energies sector. He studied the potential benefits and constraints of photovoltaic cells and hydrogen storage.

A combination of skills led him to become a co-founder of Ennesys, for which he is responsible for strategy, finance and industrialisation and has been since its creation.

Christine Grimault, Deputy CEO

At 52 years old and a graduate from EFAP, she dedicated her career to taking action in territorial marketing and large real estate projects until 2011, by developing the Infracom agency that she created in 1988. As part of this activity, she was in charge of marketing, communication and the territorial attractiveness of large national operations (Paris Rive Gauche, La Défense-Seine Arche, Plaine Commune etc.) on behalf of local authorities. She designed the marketing campaigns of large real-estate projects on behalf of major French companies in the sector and large establishments or foreign investment funds.

She left the communication sector in 2012 to take over the development of Ennesys, for which she is a co-founder. Due to the city’s expectations in terms of environmental strategy, she supervises marketing and institutional and trade relations, in particular.


The Executive Board is made up of former stakeholders and key figures who have a particular interest in Ennesys’ progress.

• ALP Sas (represented by Julien Martinez)

• Groupe BPG (represented by Jean Balas)

• Philippe Chaix

• Christine Grimault

• Jean-Louis Kindler

• Jean-Michel Leroux

• Pascal Quiry

• Pierre Tauzinat

• Wicap Ennesys (represented by Souleymane Galadima)



November 2016



In Abu Dhabi, this standard FREEWATERBOX transforms per day : 45m3 waste water into 44 m3 irrigation water (grade AAA), 500 kg kitchen waste into 150 m3 biogaz, 80 kg of the best quality compost and 300 l of algae bio-stimulant, that increase productivity of cultures by 50%.

 watch the video


April 2014

Industrial agreement between France and China: Ennesys is appointed to equip the pilot section of the future eco-neighbourhood of Shenyang with its systems..

March 2014

Ennesys launches the FreeWaterbox.



Ennesys wins first prize at the 2014 Innovative eco-business Awards (French National forum of Eco-businesses)

Decembre 2013

Four new patents, three of which were purchased from an American company

Octobre 2013

Ennesys receives a visit from the President of the French Republic, François Hollande and in November, supports the presidential delegation in Israel and Palestinian Territories, for the 2nd Israel-France Innovation Day

May 2013

Ennesys wins Paris Région Lab’s Energy efficiency of buildings call for projects

Ennesys wins a prize at the 2013 Innovative eco-business Awards (French National forum of Eco-businesses).

Decembre 2012

Groupe Balas (market leader in waterproofing for Construction and Public Works) acquires a stake in Ennesys

March 2012

The Île-de-France region allocates a grant of 125,000 Euros to Ennesys, which helped to install their demonstrator under real conditions.

Ennesys files their first patent focussed on the system’s capacity to regulate the thermal units of building facades.

Septembre 2011

Ennesys wins first prize at the KIC-Climat competition organised by the European Institute of Innovation and Technology, it awards start-up businesses focusing on innovative and economically viable projects, which could influence climate change.

Septembre 2010

Creation of Ennesys by its founding partners Pierre Tauzinat, Christine Grimault, and Jean-Louis Kindler, driven by the same desire to use their respective expertise and entrepreneurial passion to benefit the environment.