The Relaunch of Three Mile Island: Economic Hope or Nuclear Risk?

The reopening of the Three Mile Island nuclear plant in Pennsylvania divides opinion. A promise of jobs and sustainable energy for some, a painful reminder of the 1979 accident for others.

Share:

Comprehensive energy news coverage, updated nonstop

Annual subscription

8.25€/month*

*billed annually at 99€/year for the first year then 149,00€/year ​

Unlimited access • Archives included • Professional invoice

OTHER ACCESS OPTIONS

Monthly subscription

Unlimited access • Archives included

5.2€/month*
then 14.90€ per month thereafter

FREE ACCOUNT

3 articles offered per month

FREE

*Prices are excluding VAT, which may vary depending on your location or professional status

Since 2021: 35,000 articles • 150+ analyses per week

The Three Mile Island nuclear plant, located in Pennsylvania, is poised for an unexpected revival. Closed in 2019 for economic reasons, Unit 1 is scheduled to restart in 2028 thanks to a 20-year partnership with tech giant Microsoft. The company will utilize all the electricity generated to power its data centers, further solidifying the technology sector’s interest in low-carbon energy sources.

The restart of this unit is accompanied by promising economic projections. A study by the construction union federation of Pennsylvania forecasts the creation of 3,400 direct and indirect jobs, along with an estimated $3 billion in tax revenues for neighboring counties. “This will benefit many communities and even the entire country,” said Robert Bair, the federation’s president.

A History Marked by Controversy

However, not everyone is enthusiastic. Three Mile Island remains associated with the most severe nuclear accident in U.S. history, which occurred in 1979 at Unit 2, now permanently closed. The incident, caused by a combination of human error and technical malfunctions, released radioactive materials into the atmosphere. While authorities minimized its impact, residents and activists continue to accuse officials of downplaying the severity of the emissions.

Studies have revealed abnormally high rates of cancers and leukemia in the years following the incident, though no direct causal link has been definitively established. “Until the authorities acknowledge the extent of the damage, I cannot approve this reopening,” said Maria Frisby, a Middletown resident who lost several classmates to illnesses she attributes to the accident.

A Future in Energy Hinges on Conditions

The relaunch also raises environmental and technical concerns. Eric Epstein, head of the EFMR association specializing in radiation monitoring at Three Mile Island, highlights unresolved issues, including water supply and radioactive waste storage. Constellation, the plant operator, has assured that spent fuel will remain stored onsite as before and is awaiting the necessary permit to secure its water needs.

On the other hand, proponents of the project emphasize strengthened safety measures in the nuclear sector. “Unit 1 was the most efficient reactor in the country before its closure,” noted Robert Bair, underscoring the stringent regulations surrounding such installations.

An Economic and Strategic Choice

Microsoft’s involvement in the project reflects a paradigm shift in the energy sector. With the rise of artificial intelligence and cloud technologies, tech giants are seeking reliable and decarbonized electricity sources, even at a higher energy cost. This trend positions nuclear power as a viable alternative to meet growing energy demands while aligning with environmental commitments.

Nevertheless, local community concerns remain palpable. “The energy produced won’t directly benefit local residents,” lamented Matthew Canzoneri, president of the Goldsboro municipal council, located near the site. This dilemma illustrates a broader debate on nuclear power’s role in the energy transition and its societal impact.

Videberg Kraft AB becomes the first company to request government support to build two new reactors at the Ringhals site, under the national nuclear investment framework adopted in 2025.
The European Commission opens an in-depth investigation into Prague's public funding of a major nuclear project, which could reach €30bn ($32.88bn), with guaranteed revenues over forty years.
Niigata's assembly officially backs the restart of the Kashiwazaki-Kariwa site, marking a key step in Japan’s return to nuclear energy following the 2011 Fukushima disaster.
The Japanese government plans to fund up to 30% of loans required for nuclear projects, aiming to accelerate reactor restarts and double the share of nuclear energy in its energy mix by 2040.
French nuclear reactor developer Newcleo has submitted its lead-cooled small modular reactor design to Euratom, initiating the first regulatory phase to integrate nuclear non-proliferation safeguards at the European level.
French state utility EDF has increased the maximum estimated cost for building six new nuclear reactors to €72.8 billion ($85.29 billion), representing a 40% rise over the original figure.
California-based startup Radiant has secured $300mn to build its first factory in Tennessee and prepare for the mass production of miniature nuclear reactors for off-grid applications.
Terra Innovatum has increased its interactions with the Nuclear Regulatory Commission to advance licensing of its SOLO™ micro-modular reactor, despite the partial shutdown of the US federal government.
The US nuclear regulator has extended the operating licences of three Illinois reactors by 20 years, strengthening Constellation's long-term industrial outlook for the Clinton and Dresden sites.
The SATURNE Industrial Chair aims to develop innovative uranium extraction methods, with joint funding from Orano and the National Research Agency over a four-year period.
US-based X-energy has signed a reservation agreement with South Korea's Doosan Enerbility to secure key components for its small modular nuclear reactors.
Niger expands its mining alliances with Uranium One to develop new sites, while the Dasa project continues seeking financing despite clear political backing.
Samsung Heavy Industries has received Approval in Principle for a floating nuclear plant featuring two SMART100 reactors, marking a step toward the commercialisation of offshore small modular reactors.
The Indian government proposes a unified legal framework for nuclear energy, aiming to boost private investment and increase installed capacity to 100 GW by 2047.
Samsung C&T strengthens its presence in modular nuclear energy in Europe by signing an agreement with Synthos Green Energy to develop up to 24 SMRs in Poland and several Central European countries.
Israeli firm nT-Tao and Ben-Gurion University have developed a nonlinear control system that improves energy stability in fusion plasmas, strengthening the technical foundation of their future compact reactors.
The Indian government has introduced a bill allowing private companies to build and operate nuclear power plants, ending a state monopoly in place for over five decades.
Natura Resources enters a new regulatory phase for its molten salt reactor MSR-1, following the signing of a framework agreement with the US Department of Energy under the Reactor Pilot Program.
Norwegian Nuclear Decommissioning is surveying 22 localities to assess their interest in hosting storage facilities for radioactive waste from the country’s former research reactors.
Electricité de France's Flamanville 3 reactor has reached full power for the first time, marking a key industrial milestone in the deployment of EPRs in Europe, despite cost overruns reaching EUR23.7bn ($25.7bn).

All the latest energy news, all the time

Annual subscription

8.25€/month*

*billed annually at 99€/year for the first year then 149,00€/year ​

Unlimited access - Archives included - Pro invoice

Monthly subscription

Unlimited access • Archives included

5.2€/month*
then 14.90€ per month thereafter

*Prices shown are exclusive of VAT, which may vary according to your location or professional status.

Since 2021: 30,000 articles - +150 analyses/week.