Geoenergy for Heating and Cooling

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Protect the Environment
Support green progress and growing energy needs without harming the environment.
Reduce CO2 Emissions
Decrease CO2 emissions from buildings by up to 90%.
Achieve Energy Efficiency
Use Earth’s natural resources to improve energy utilization and efficiency.

The carbon footprint of heating and cooling buildings

Seventy percent of global energy consumption and CO2 emissions come from high-population-density cities. The buildings where we live and work are responsible for about 35% of the final energy consumption in the world and 38% of direct and indirect CO2 emissions (including CO2 footprint of construction activities and the energy use during the building's lifetime).

The bulk of this energy is used for heating and cooling. Today, fossil fuels are predominantly used for heating, but burning these fuels contributes to global warming. Hotter global temperatures, successive heat waves, and increased development in hot-climate countries are teeing up cooling for accelerated growth; when driven from a high-carbon electricity grid, space cooling can have a strong negative CO2 impact.

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Global share of buildings and construction final energy and emissions, 2019. (Sources: IEA 2020d; IEA 2020b. Adapted from "IEA World Energy Statistics and Balances" and "Energy Technology Perspectives.")
Construction of an office building high-rise
The building sector has the greatest potential for significantly reducing GHG emissions compared with other emitting sectors.

Urban development infrastructure on the rise

Excluding construction, direct and indirect emissions from electricity and heat used during a building’s lifetime rose to 10 gigaton of CO2 in 2019, or 30% of the global energy-related CO2 emissions. The building sector has the largest potential for significantly reducing greenhouse gas (GHG) emissions compared to other major emitting sectors. This emissions savings potential is said to be as much as 84 gigatons of CO2 by 2050, through direct measures in buildings such as energy efficiency, fuel switching, and the use of renewable energy.

Over the next 15 years, 2.5 trillion ft2 [232 billion m2] of buildings will be constructed or renovated worldwide. In addition to the unprecedented growth in the global building sector, nearly two-thirds of the building area that exists today will still exist in 2050. Therefore, any transition to low-carbon or carbon-neutral building environments must address both new construction and existing buildings.

While the total final energy consumption of the global buildings sector remained at the same level in 2019 compared with the previous year, CO2 emissions from the operation of buildings have increased to their highest level yet—around 10-gigaton CO2, or 28% of total global energy-related CO2 emissions.

Geoenergy is the clean heating and cooling solution

70% of the thermal energy a building needs is actually available a few feet below it—in the ground. Unlike air temperature, ground temperature remains constant all year long.

In the winter, heat can be extracted from the ground and supplied to the building with the use of a heat pump system that lifts the temperature to match the building requirements. In the summer, the building can be cooled, and the extracted heat is returned to the ground.

The ground is then used as a renewable, local, and resilient interseasonal thermal storage. This is what we call geoenergy.

Also known as shallow geothermal or ground-source heat pumping (GSHP), a typical geoenergy system consists of an underground heat exchanger made of shallow (<600 ft), closed-loop wells in which a fluid circulates. At surface, a heat pump provides hot water for space heating or chilled water for cooling. It is different from geothermal power in deeper reservoirs, which relies on naturally heated underground water source to produce energy or only thermal heating.

Ground-source heat pumps are gaining traction, generating approximately 670,000 TJ per year of space heating as of 2020, which represents only 1% of the total building heat demand. These metrics show that geoenergy is poised for growth as the most efficient and sustainable way to generate both heating and cooling.

Concept of Celsius Energy using geothermal wells to provide heat to buildings
The Celsius Energy solution connects buildings to the Earth’s continuous and resilient energy resources, delivering heating and cooling while reducing CO2 emissions by as much as 90%.

Schlumberger New Energy approach to geoenergy for heating and cooling

Reducing emissions takes a solution that is not only available to new green constructions, but also supports existing construction and building renovations.

The Schlumberger New Energy venture Celsius Energy utilizes geoenergy to provide heating and cooling solutions for new or existing constructions, powered by the Earth. Leveraging Schlumberger’s extensive knowledge of subsurface behavior, operational automation technology, and deep science expertise, the Celsius Energy solution helps meet global goals for reduced emissions.

Innovative technology design for geoenergy access

The Celsius Energy technology comprises

  • geoenergy exchanger—reduces footprint at surface compared with standard GSHP systems, which increases real estate value while also serving as a viable solution for new building constructions or existing building renovation projects; closed-loop wells are drilled in a pyramid design subsurface to enable heat transfer
  • surface heat pump—enables energy to be transferred from underground to the building for heating, cooling, or both simultaneously
  • advanced digital control—monitors and regulates the use of the exchanger and the heat pump in real time, reduces maintenance demands, and provides efficiency reports.
Celsius Energy Delivers 60% Reduction in Energy Consumption
The first installation of the Celsius Energy solution in Clamart has created a design space that integrates this sustainable technology into the urban landscape.
Celsius Energy
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Full-scale geoenergy project in action

A full-scale demonstration of Celsius Energy technology was installed at a Schlumberger campus in France in 2020.

The project provides heating and cooling to the 200 people working in the 3,000-m2 [32,300-ft2] office.

CO2 emissions from heating and cooling were divided by 10 on this building, and energy costs reduced by 40%.

Put Celsius Energy to work for you
Discover more about how Celsius Energy can heat and cool your buildings year ‘round, regardless of weather conditions.
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