Oklo reaches key agreement with DOE for its modular reactor in Idaho

Oklo Inc. validates a strategic milestone by finalizing an agreement with the **U.S. Department of Energy (DOE)** to conduct site inspections for its modular nuclear reactor in Idaho. This reactor project, scheduled for 2027, is part of a broader drive to develop new nuclear technologies in the United States.

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

Oklo Inc. validates a strategic milestone by finalizing an agreement with the U.S. Department of Energy (DOE) to conduct site inspections for its modular nuclear reactor in Idaho.
This reactor project, scheduled for 2027, is part of a broader drive to develop new nuclear technologies in the United States.

A project structured around SMR

Oklo, which specializes in small modular reactors (SMRs), is developing a technology designed to meet the growing demand for low-carbon energy in specific sectors.
Unlike conventional reactors, SMRs are distinguished by their ability to be deployed rapidly and at reduced cost, thanks to their compact size and modular design.
Oklo’s proposed reactor is based on a fast reactor design, which enables improved fuel cycle management and a significant reduction in nuclear waste.
The agreement signed with the DOE now enables the company to begin the geotechnical and environmental studies required to assess the feasibility of siting this type of reactor near the Idaho National Laboratory.
This step is crucial to determine whether the soil and local infrastructure can support the technical requirements of the project.

Regulatory and environmental challenges

Inspections of the Idaho site must also be accompanied by an in-depth analysis of environmental and radiological impacts.
Compliance with safety standards and environmental criteria is governed by strict regulations imposed by the Nuclear Regulatory Commission (NRC).
Oklo still has to obtain the necessary approvals before starting construction of the reactor.
In 2022, an initial application by the company was rejected by the NRC due to insufficient information being submitted.
This decision underlines the stringent nuclear safety requirements of the US authorities.
The new project aims to overcome these obstacles by relying on more solid technical studies, while the DOE plays a facilitating role to support the company in its administrative and regulatory procedures.

Strategic challenges for the sector

The growing interest in nuclear technologies such as SMRs is partly explained by the need to guarantee reliable power generation, independent of weather conditions.
Small reactors, which can be deployed in remote regions or for specific industrial applications, offer considerable flexibility of use.
Their low cost and accelerated factory construction also make them attractive for fast-moving markets such as data centers.
Major technology companies such as Microsoft and Amazon are already exploring partnerships with nuclear power producers to power their energy-intensive infrastructures.
The stability of the electricity produced by these reactors and their ability to meet the growing needs of businesses without emitting carbon is a key argument in the strategy of diversifying energy sources.

Economic and financial outlook

Oklo’s financing was strengthened by its listing on the stock exchange, following its merger with a special purpose acquisition vehicle (SPAC) headed by Sam Altman.
This transaction raised substantial funds to accelerate the development of the reactor project.
The company’s initial valuation of nearly $850 million reflects investor interest in this emerging technology.
However, Oklo still needs to convince regulators of the long-term viability of its model.
The project also benefits from a favorable political framework in the United States.
The support of the DOE and Idaho’s local authorities demonstrates the United States’ commitment to revitalizing the nuclear industry, seen as an essential lever for decarbonizing the country’s energy sector.
The success of SMR could pave the way for other initiatives in the years to come.

A fast-changing market

SMR technology is also of interest to other players in the energy sector, both public and private.
The development of reactors that are smaller, but just as efficient as traditional models, could enable many countries to modernize their nuclear fleet without the massive investment required to build large-scale power plants.
This modularity also makes it easier to meet specific needs, such as those of isolated areas or industries requiring a constant supply.
As regulators and governments recognize the importance of RMS in the energy transition, new market opportunities are emerging.
Oklo’s strategy is therefore based on an alignment between innovative technology, solid financing and political support.
The next step will be to ensure that site inspections and validation processes run smoothly to meet the 2027 deadline.

NextEra Energy has lifted its earnings estimates for 2025 and 2026, supported by power demand linked to long‑term contracts previously signed with Google and Meta to supply their artificial intelligence data centres with low‑carbon electricity.
London launches a complete regulatory overhaul of its nuclear industry to shorten authorisation timelines, expand eligible sites, and lower construction and financing costs.
Finland's Ministry of Economic Affairs extends the deadline to June 2026 for the regulator to complete its review of the operating licence for the Olkiluoto spent nuclear fuel repository.
Framatome will replace several digital control systems at the Columbia plant in the United States under a contract awarded by Energy Northwest.
The conditional green light from the nuclear regulator moves Cigéo into its final regulatory stage, while shifting the risks towards financing, territorial negotiations and industrial execution.
The drone strike confirmed by the IAEA on the Chernobyl site vault exposes Ukraine to a nuclear risk under armed conflict, forcing the EBRD to finance partial restoration while industry standards must now account for drone threats.
Deep Fission is installing a 15 MWe pressurised reactor 1.6 km underground at Great Plains Industrial Park, under the Department of Energy’s accelerated pilot programme, targeting criticality by July 4, 2026.
EDF commits to supply 33 MW of nuclear electricity to Verkor over 12 years, enabling the battery manufacturer to stabilise energy costs ahead of launching its first Gigafactory.
The full-scope simulator for the Lianjiang nuclear project has successfully passed factory acceptance testing, paving the way for its installation at the construction site in China's Guangdong province.
A coalition of Danish industry groups, unions and investors launches a platform in support of modular nuclear power, aiming to develop firm low-carbon capacity to sustain industrial competitiveness.
The United Kingdom and TAE Technologies create a joint venture in Culham to produce neutral beams, a key component of fusion, with strategic backing from Google.
Texas-based developer Natura Resources receives new federal funding to test key components of its 100-megawatt modular reactor in partnership with Oak Ridge National Laboratory.
The Niigata regional assembly is deliberating on restarting unit 6 of the world’s largest nuclear plant, thirteen years after operations ceased following the Fukushima disaster.
Reactor Doel 2 was taken offline, becoming the fifth Belgian reactor to cease operations under the country’s gradual nuclear phase-out policy.
Rolls-Royce SMR has expanded its partnership with ÚJV Řež to accelerate the deployment of small modular reactors, targeting the construction of several units in the Czech Republic and abroad.
The Indian government aims to amend legislation to allow private companies to participate in civil nuclear development, a move positioned as critical to achieving the country’s long-term energy targets.
The VVER-1200 nuclear reactor at Xudabao 4 in China has completed installation of its final passive water tank, marking the end of modular construction for the second phase of the project.
Ottawa and Edmonton commit to a nuclear production roadmap by 2050, through a memorandum of understanding also covering carbon capture and an Indigenous-led pipeline project.
Niamey asserts control over its uranium resources by authorising open market sales of Somaïr’s production, formerly operated by France’s Orano, amid ongoing legal disputes.
Equinix has signed a strategic agreement with French start-up Stellaria to reserve 500 MWe of advanced nuclear capacity to power its future European AI data centres starting in 2035.

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.