Thermal energy networks (TENs) are advanced district thermal energy systems that use a network of underground pipes to distribute heating and cooling to multiple buildings. Unlike traditional systems that burn fossil fuels, these thermal energy systems utilize highly efficient heat pumps and renewable energy sources to provide comfortable temperatures year-round.
Think of it as the electrical grid, but for thermal energy. Just as electricity flows through wires to power homes and businesses, thermal energy flows through pipes to heat and cool them. This approach to managing thermal energy not only enhances comfort but also achieves 3-4 times greater renewable energy efficiency than conventional fossil fuel systems.
Renewable capacity being added globally by 2030—nearly 3x the 2017-2023 increase
More efficient than fossil fuel equivalents—heat pumps require far less energy
Fossil fuel share of global energy by 2030, down from 80%—first decline in decades
Leading utilities are already making the transition. Companies like Eversource and National Grid have rebranded to reflect their clean energy focus and are installing thermal energy networks across the Northeast.



Marc is a recognized authority in thermal energy networks, with extensive experience in thermal energy consulting. His published works and teaching experience demonstrate a deep understanding of thermal energy systems and their application in achieving renewable energy efficiency.
Whether you are just beginning to explore the potential of a thermal energy network or are ready to implement a large-scale project, Marc’s expertise in thermal energy consulting will provide the guidance you need to succeed.