Red de Calor de León: renewable heat for more than 28,000 homes
Customer
Jannone Tubos
Country
Spain
Application
Local & district heating
Construction period
2026
Product solutions
- 1,308 m of pre-insulated bonded pipe systems DN 800/1000
- 32 pieces of 90° elbows DN 800/1000
- 2 pieces of 45° elbows DN 800/1000
The Red de Calor de León is one of the most important district heating developments in Spain. It is part of the sustainable energy transition in the Castilla y León region and is co-financed by the EU Just Transition Fund. The project replaces fossil fuel heating systems step by step with heat from locally sourced renewable biomass.
Sustainable district heating for León
The first construction phase comprises a 44 MW biomass heating plant and the first section of the distribution network. The plant runs on two biomass boilers of 22 MW each and will consume around 64,000 tonnes of locally sourced forest biomass per year. Once completed, the system will provide renewable heating and domestic hot water to more than 28,000 homes and around 150 public and private buildings. It is expected to generate approximately 176 GWh of renewable heat each year and to avoid more than 35,000 tonnes of CO₂ emissions annually.
Large-diameter pipe systems for the network backbone
ISOPLUS supplied 1,308 m of pre-insulated bonded pipe systems (KMR) in DN 800/1000, together with 32 pieces of 90° elbows and 2 pieces of 45° elbows in the same dimension. At the upper end of the rigid pipe range, these components form the transport backbone of the network and carry the full 44 MW thermal output of the generation plant into the city. The pipe system, featuring PUR foam insulation and a HDPE outer casing, provides high energy efficiency, long service life and reliable operation, and integrates into a network equipped with leak detection, VPN-based communications and smart variable-flow pumping. All deliveries were completed on schedule and coordinated with the construction programme, while work on the network continues. In later phases, the plant is planned to grow from its initial 44 MW to a total of up to 88 MW.
All references
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