By injecting and storing pure geothermal energy underground, New York is transforming its energy landscape through an ambitious and creative project that uses the energy to heat buildings. In addition to addressing the environmental issues caused by conventional energy sources, this project tackles the pressing need to switch from fossil fuels to renewable alternatives.

The idea represents a major step towards sustainable urban living and is focused on subterranean thermal energy networks (UTENs). Promoting these initiatives would help New York State get closer to neighbourhood-scale building decarbonisation while giving its union workforce a fair transition. The suggested pilot projects offer a range of fascinating and cutting-edge methods for developing and implementing thermal energy networks.

How fossil fuels will be replaced by underground thermal energy networks

The UTEN project suggests using a network that distributes geothermal energy in place of gas pipes. To control building temperatures, this system uses heat that is extracted from the earth, which is where natural thermal energy is kept. Geothermal energy is clean, renewable, and produces no greenhouse gases when in use, in contrast to traditional heating techniques.

Over time, this strategy cuts operating expenses while simultaneously reducing dependency on fossil fuels. New York hopes to set an example for other communities looking for greener heating options by putting sustainability first. These subterranean thermal networks span from low-income housing to the commercial districts of midtown Manhattan, and from Hudson Valley neighbourhoods to the inland town of Ithaca.

The science of injecting geothermal energy

To gather and transfer thermal energy, geothermal energy systems use subterranean wells and heat pumps. This procedure is expanded to include entire neighbourhoods in the case of UTENs. Depending on the needs of the season, heat is either injected into the ground or removed, enabling year-round efficiency. This technology’s low environmental effect is among its most alluring features.

Geothermal systems are built for long-term stability and safety, in contrast to gas pipelines, which carry the danger of leakage and emissions. As a result, the project is essential to the future of green energy in New York. The same capital investments that currently generate lengthy and consistent rates of return for gas utilities will still be required for that work: trench digging, pipeline construction, and equipment installation.

But those pipes will transport water or other liquids that transmit heat from below—or from other buildings and sources in the network—so that heat pumps may use them to keep buildings warm, rather than combustible and planet-warming gas. Heat pumps, which function similarly to reversible air conditioners, use a lot less energy than boilers or furnaces that burn fossil fuels.

Advantages for New Yorkers: A future that is cheaper and cleaner

The switch to geothermal energy has several advantages for locals. Over time, UTENs are expected to significantly lower heating expenses. Even though the original installation could be expensive, these costs can be covered in a few years by savings on maintenance and energy bills. Additionally, the removal of contaminants linked to combustion enhances air quality, which is good for public health.

In addition, the city expects the renewable energy industry to provide jobs, promoting economic expansion and mitigating climate change. This all-encompassing strategy guarantees that the project will help the economy and the environment. Efficiency can be further increased by collecting and distributing waste heat from thermal energy networks. Customers’ electricity bills, which will increase as they move from gas to electric heating, may be reduced as a result.

The Rockefeller Centre project, for instance, presents a singular chance to investigate the creation of UTENs for huge commercial structures in a hyper-urban setting. We anticipate that the next phase of these projects will demonstrate to the industry and its stakeholders how this technology will economically electrify the state’s building stock, give customers much-needed energy services, and open up new business opportunities for New York’s gas utilities.