Bessieres
Project Context
Water Horizon is a Toulouse-based deeptech startup founded in 2017. With its proprietary thermochemical technologies, Water Horizon aims to become a major player in industrial decarbonization. WH supports industrialists in their energy transition across several sectors: waste heat recovery, heat storage and transport, and renewable cooling production.
With its mature technologies, WH is transforming the landscape into a positive energy territory.
STAKEHOLDERS
Bessières Greenhouses
Suez – UVE Econotre (Bessières)
PARTNERS
SUEZ
BUDGET / FINANCING
Total Cost:
3 million euros
Funding:
Water Horizon
ADEME
KEY FIGURES
→ 792 tonnes of CO2 avoided per year
Target of 1 GWh of energy delivered annually
DESCRIPTION
Thanks to its agricultural heritage, Bessières is ideally positioned to host an innovative project aimed at establishing a local and sustainable circular economy, connecting producers of residual heat and consumers of cold.
The Bessières Energy Recovery Unit (UVE) is a household waste treatment center.
The facility processes approximately 196,000 tons of waste annually, producing electricity and heat.
Some of this heat is recovered through a greenhouse heating network. Nevertheless, the recovery remains limited and a large part of this heat is still lost and released into the air.
Les Serres de Bessières, located a few hundred meters from the UVE (Waste-to-Energy Unit), is a market gardening operation specializing in the production of greenhouse tomatoes. The greenhouses cover 10 hectares of land for an average annual production of 6,000 tons of tomatoes. The need to maintain an adequate temperature for tomato preservation presents a major environmental challenge: significant cooling requirements. Indeed, refrigeration systems, although essential for preserving the quality of the tomatoes, contribute to energy consumption and greenhouse gas emissions.
With its “Low Heat to Cold” (LH2C) thermal battery technology, Water Horizon will distribute renewable cold from waste heat from the WTE plant.
The LH2C battery is charged by heat from the UVE. Once full, it is used on the same site to provide cooling.
Project Impact
Bessières Winery
Best image
Reduction of environmental impact
Continuous upgrade and innovation to comply with evolving regulations
Serres de Bessières:
Lower operating and maintenance costs
→ Reduction of greenhouse gas emissions
→ Temperature management (accuracy, stability) to ensure the quality and safety of stored products
Localisation / Routing
POINT TECHNOLOGY
Over the past 7 years, WATER HORIZON has refined a unique skill and technical expertise in the recovery of waste heat and the production of renewable cold.
In Europe, fatal industrial heat represents the equivalent of 100 nuclear reactors.
It is from this striking observation that Water Horizon developed its Low Heat To Cold (LH2C) technology: to recover low-temperature waste heat (50-100°C) and transform it on site into positive temperature cold (>0°C).
Water Horizon takes care of everything! Whether you are a producer of waste heat or a consumer, we handle finding your match, sizing the project, financing it, and operating it.


