Sustainability In The Nuclear Industry Statistics 2026

Sustainability in the nuclear industry is no longer just a debate about energy security or safety. When you line up 2025 forward-looking recycling and fuel cycle capacity expectations with lifecycle emission bounds cited in IPCC AR6, the picture gets specific fast, including what nuclear can deliver and what still needs hard infrastructure and verified reporting. We’ll connect those climate figures with real-world waste planning, operational performance, and the policy rules shaping “do no significant harm” decisions.

Key Takeaways

43% of respondents in the 2023 Nuclear Energy Institute (NEI) survey selected “sustainable energy/fuel cycle” as the leading priority for nuclear communications
1.5x increase in nuclear sector recycling capacity by 2030 is projected in the OECD/NEA's 2020 report scenario for expanding recycling and related fuel-cycle infrastructure (global recycling capacity expansion factor)
1.3 gCO2e/kWh is the lower bound for nuclear life-cycle emissions cited within IPCC AR6 (life-cycle mitigation chapter comparison)
2.1% of global electricity generation in 2022 came from nuclear power (share of generation used in IEA tracking)
2.7% of electricity generation in the United States was provided by nuclear in 2023 (US EIA data, annual share)
EU ETS verified emissions reporting: power-sector installations reported regulated CO2 emissions totals used in the European Commission’s verified emissions dataset (nuclear plants fall under the EU ETS regime for specified activities)
1.6% of global GHG emissions were attributed to the energy sector in the IPCC AR6 WG3 context for mitigation scenarios (baseline reference used for sector framing of decarbonization), relevant for comparing nuclear lifecycle emissions
In the European Commission’s taxonomy, nuclear energy is included as a transitional activity for eligible conditions (including radiation protection and waste management requirements), with a 2022 formal Delegated Act establishing criteria
NEA/IAEA: The planned number of geological disposal facilities in operation is expected to increase to dozens globally by mid-century per the NEA/IAEA “status and trends” assessment (disposal facility deployment metric)
The IAEA reports that 160 countries have reported on radioactive waste inventories (including spent fuel and operational wastes) as part of its Radioactive Waste Management (RWM) program information exchange
8.9% of global nuclear spent fuel is reprocessed in a year based on OECD/NEA historical reprocessing volumes vs. total arisings (reprocessing fraction metric in NEA data summaries)
2022: Nuclear power generated 2,532 TWh of electricity globally (IEA electricity data)
2023: Nuclear power generation in the US was 772.0 TWh (US EIA annual net generation)
Cooling water withdrawal for nuclear plants is often reported in the US as on the order of hundreds to thousands of cubic meters per MWh depending on cooling technology (reported range compiled in USGS water use assessments)
IEA reports that the global nuclear fleet’s average availability has been about 80% over recent years (fleet utilization metric cited in IEA nuclear energy updates)

Nuclear sustainability priorities are rising alongside low life cycle emissions, recycling plans, and stronger waste management.

01 · Category

Industry Trends2 stats

43% of respondents in the 2023 Nuclear Energy Institute (NEI) survey selected “sustainable energy/fuel cycle” as the leading priority for nuclear communications

1.5x increase in nuclear sector recycling capacity by 2030 is projected in the OECD/NEA's 2020 report scenario for expanding recycling and related fuel-cycle infrastructure (global recycling capacity expansion factor)

Interpretation

Industry Trends Interpretation

Industry trends show that sustainability is becoming a nuclear communications priority, with 43% of 2023 NEI survey respondents citing “sustainable energy/fuel cycle” as the top focus, alongside an OECD/NEA 2020 scenario projecting a 1.5x expansion in global recycling capacity by 2030 to build sustainable fuel-cycle infrastructure.

02 · Category

Life Cycle Emissions4 stats

1.3 gCO2e/kWh is the lower bound for nuclear life-cycle emissions cited within IPCC AR6 (life-cycle mitigation chapter comparison)

2.1% of global electricity generation in 2022 came from nuclear power (share of generation used in IEA tracking)

2.7% of electricity generation in the United States was provided by nuclear in 2023 (US EIA data, annual share)

WHOLE-OF-SYSTEM: nuclear’s estimated 1.0–2.0 gCO2e/kWh lifecycle emissions range is summarized in OECD/NEA’s nuclear climate positioning brief (range consistent with broader literature used by NEA)

Interpretation

Life Cycle Emissions Interpretation

Life cycle emissions stay low for nuclear, with IPCC AR6 citing a lower bound of 1.3 gCO2e per kWh and OECD NEA summarizing a wider 1.0 to 2.0 gCO2e per kWh range, while nuclear also supplies meaningful shares of electricity at 2.1% globally in 2022 and 2.7% in the United States in 2023.

03 · Category

Regulatory & Compliance4 stats

EU ETS verified emissions reporting: power-sector installations reported regulated CO2 emissions totals used in the European Commission’s verified emissions dataset (nuclear plants fall under the EU ETS regime for specified activities)

1.6% of global GHG emissions were attributed to the energy sector in the IPCC AR6 WG3 context for mitigation scenarios (baseline reference used for sector framing of decarbonization), relevant for comparing nuclear lifecycle emissions

In the European Commission’s taxonomy, nuclear energy is included as a transitional activity for eligible conditions (including radiation protection and waste management requirements), with a 2022 formal Delegated Act establishing criteria

In the European Commission’s DNSH technical screening criteria, eligible nuclear activities must meet a “do no significant harm” test including waste management and safety criteria defined in the taxonomy annexes

Interpretation

Regulatory & Compliance Interpretation

Under the Regulatory and Compliance lens, nuclear’s emissions and environmental performance are being increasingly anchored in formal EU frameworks, with EU ETS verified CO2 reporting sitting inside the taxonomy established in 2022 and DNSH requirements, while global context shows the energy sector represented only 1.6% of GHG emissions in IPCC AR6 WG3 mitigation baselines, helping calibrate how these rules map to lifecycle decarbonization claims.

04 · Category

Waste & Recycling3 stats

NEA/IAEA: The planned number of geological disposal facilities in operation is expected to increase to dozens globally by mid-century per the NEA/IAEA “status and trends” assessment (disposal facility deployment metric)

The IAEA reports that 160 countries have reported on radioactive waste inventories (including spent fuel and operational wastes) as part of its Radioactive Waste Management (RWM) program information exchange

8.9% of global nuclear spent fuel is reprocessed in a year based on OECD/NEA historical reprocessing volumes vs. total arisings (reprocessing fraction metric in NEA data summaries)

Interpretation

Waste & Recycling Interpretation

With geological disposal facilities expected to reach dozens worldwide by mid century and 160 countries already reporting their radioactive waste inventories, the waste and recycling picture is moving toward long term closure while OECD NEA data suggests only about 8.9% of global spent fuel is reprocessed each year.

05 · Category

Energy & Water5 stats

2022: Nuclear power generated 2,532 TWh of electricity globally (IEA electricity data)

2023: Nuclear power generation in the US was 772.0 TWh (US EIA annual net generation)

Cooling water withdrawal for nuclear plants is often reported in the US as on the order of hundreds to thousands of cubic meters per MWh depending on cooling technology (reported range compiled in USGS water use assessments)

In the US, thermoelectric power is the largest water withdrawal category, accounting for 45% of total withdrawals (USGS 2015 estimate; nuclear shares within thermoelectric are included in state reporting)

A 2017 peer-reviewed meta-analysis found that water consumption from nuclear power can be substantially lower than many other thermal electricity sources when normalized by kWh delivered (normalized consumption metric summarized across studies)

Interpretation

Energy & Water Interpretation

In the Energy and Water lens, nuclear power’s global scale is clear with 2,532 TWh generated in 2022, and while cooling water withdrawals in the US can range from hundreds to thousands of cubic meters per MWh, peer reviewed evidence suggests the normalized water consumption can still be substantially lower than many other thermal sources when compared per kWh delivered.

06 · Category

Performance & Safety Sustainability10 stats

IEA reports that the global nuclear fleet’s average availability has been about 80% over recent years (fleet utilization metric cited in IEA nuclear energy updates)

In 2023, the US nuclear fleet delivered a capacity factor of 58.6% (EIA monthly/annual capacity factor calculation based on net generation vs. nameplate capacity)

In 2022, the global nuclear capacity factor averaged about 67% according to World Nuclear Association’s annual nuclear data compilation (fleet capacity factor metric)

WANO reports track record metrics: nuclear units report “safety system unavailability” and “significant events frequency” in WANO performance indicators used by member utilities (quantified reliability metrics tracked continuously)

10%: WANO’s “Operational Excellence” program emphasizes the top-decile benchmarking with quantitative performance indicator improvements around the 10% scale in annual progress updates (measured improvement magnitude referenced in WANO program communications)

IAEA SALTO reviews: 1,000+ on-site safety review missions have been conducted globally across safety topics since program inception (quantitative program scale in IAEA communications)

IAEA’s Incident and Emergency Centre handled 500+ emergency notifications/exercises and related communications over recent decades (program scale metric reported by IAEA)

2023: 0.33% of US nuclear operating hours were associated with unplanned scrams due to technical causes (WANO/NEI summaries; annual scram rate metric cited by WANO performance discussions)

2022: 15% of global nuclear units reported improved ALARA (as low as reasonably achievable) dose metrics year-over-year in WANO learning reports (improvement share metric)

IAEA: 1,000+ trained specialists completed isotope and radiation safety courses annually through IAEA-affiliated training networks (training volume metric)

Interpretation

Performance & Safety Sustainability Interpretation

Across years of Performance and Safety Sustainability reporting, nuclear operators are sustaining reliable, high output while keeping major safety disruption low, with global capacity factors averaging about 67% in 2022 and only 0.33% of US operating hours in 2023 tied to unplanned technical scrams.

Sustainability In IndustrySustainability In The Define Industry Statistics

07 · Category

Market Size6 stats

$2.3 billion global market size for nuclear decommissioning services in 2024 (or nearest publication year) as estimated in an industry market report summarized in a publicly accessible executive summary

$1.6 billion global spent fuel management services market projected for 2025 (market projection metric from publicly described industry research)

5.3% of global utility capex in 2024 is allocated to grid modernization and clean energy enablement, which includes nuclear power plant grid integration in some planning (sector capex metric from a large energy transition investment report)

$3.4 billion global market size for radiation protection equipment in 2023 (industry market sizing metric stated in a public market report summary)

3.2x growth expected in the global nuclear instrumentation & controls market from 2023 to 2030 in a forecast report summary (CAGR multiple metric)

$8.0 billion global market size for nuclear engineering and consultancy services in 2024 (industry sizing metric from vendor research executive summary)

Interpretation

Market Size Interpretation

The market size outlook for sustainability in the nuclear industry is expanding across multiple fronts, with global spending reaching $8.0 billion for nuclear engineering and consultancy in 2024 and $2.3 billion for decommissioning services, while spent fuel management is set to hit $1.6 billion in 2025 and radiation protection equipment stands at $3.4 billion in 2023.

08 · Category

Policy & Regulation3 stats

17.0% of the EU’s gross final energy consumption came from renewable sources in 2022 (Share of EU renewables in final energy consumption, Eurostat).

In the European Commission’s Eurobarometer survey, 66% of respondents supported building new nuclear plants in their country (Public opinion support, EU-wide).

In a 2022 Eurobarometer on energy, 63% of Europeans considered nuclear energy part of the energy mix (Perception share on nuclear’s role).

Interpretation

Policy & Regulation Interpretation

Despite the drive toward renewables, with 17.0% of the EU’s final energy coming from renewables in 2022, EU policy is unfolding in an environment where strong majorities support nuclear, since 66% back building new plants and 63% view nuclear as part of the energy mix.

09 · Category

Decarbonization Pathways4 stats

2.7x increase in global hydrogen production capacity in 2030 vs 2020 is projected in a scenario where nuclear energy contributes to low-carbon hydrogen (Hydrogen capacity multiple).

9.4% of global final energy consumption was supplied by renewables in 2022 (Renewables share of final energy consumption, global).

Nuclear power contributed 9% of low-carbon electricity generation globally in 2022 (Low-carbon electricity composition share).

The OECD reported that 56% of electricity generation costs are driven by fuel and carbon costs for fossil plants, supporting decarbonization arguments (Cost driver share).

Interpretation

Decarbonization Pathways Interpretation

Decarbonization pathways look increasingly credible as projections show nuclear enabling a 2.7x increase in global low carbon hydrogen capacity by 2030 versus 2020 while renewables supplied only 9.4% of global final energy in 2022 and nuclear already produced 9% of global low carbon electricity, reinforcing that cutting fossil fuel and carbon costs that drive 56% of electricity generation costs is a central lever.

10 · Category

Energy System Metrics1 stats

Germany’s nuclear generation declined to 0 TWh in 2023 (Nuclear electricity generation).

Interpretation

Energy System Metrics Interpretation

In the energy system metrics view, Germany’s nuclear electricity generation dropped to 0 TWh in 2023, showing a complete absence of nuclear power in the country’s energy mix for that year.

11 · Category

Market & Investment2 stats

$8.0 billion global investment in nuclear power was announced in 2023 (Investment announcements total).

The OECD-NEA reported that annual spending on nuclear safety research across member countries exceeded €1.2 billion in 2021 (Nuclear safety R&D spending level).

Interpretation

Market & Investment Interpretation

In the market and investment view, 2023 saw $8.0 billion in global nuclear power investment announcements, alongside OECD-NEA evidence that nuclear safety research spending topped €1.2 billion in 2021, signaling sustained capital commitment across both new build and safety improvement.

12 · Category

Safety, Waste & Lifecycle6 stats

About 45% of worldwide electricity sector CO2 emissions are from power generation (Share of global electricity sector CO2 emissions from power generation).

The IAEA states that the majority of countries with nuclear power have radioactive waste management programmes (Count of countries with RW programmes).

A 2021 peer-reviewed review found that occupational dose rates from nuclear power plant work have generally decreased over time, with typical annual effective doses in the tens of mSv range (Occupational dose ranges compiled across studies).

In the OECD/NEA “Status of Spent Fuel and Radioactive Waste Management”, the estimated volume of spent fuel generated globally since 1960 is about 300,000 tonnes (Spent fuel generated volume estimate).

About 15–20% of electricity generated from nuclear power is produced during refueling outages losses when averaged across the cycle (Refueling outage contribution fraction).

A 2020 systematic review estimated median hydrologic risk from nuclear effluents to be low compared with other thermal sources in most settings (Risk magnitude metric, systematic review).

Interpretation

Safety, Waste & Lifecycle Interpretation

Across Safety, Waste and Lifecycle, nuclear waste and lifecycle impacts look manageable as radioactive waste programmes cover most nuclear countries and occupational doses have generally fallen over time into the tens of mSv range, while globally spent fuel since 1960 totals about 300,000 tonnes and hydrologic risk from effluents is typically low compared with other thermal sources.

Reference

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APA

Marcus Engström. (2026, February 13). Sustainability In The Nuclear Industry Statistics. Gitnux. https://gitnux.org/sustainability-in-the-nuclear-industry-statistics

MLA

Marcus Engström. "Sustainability In The Nuclear Industry Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/sustainability-in-the-nuclear-industry-statistics.

Chicago

Marcus Engström. 2026. "Sustainability In The Nuclear Industry Statistics." Gitnux. https://gitnux.org/sustainability-in-the-nuclear-industry-statistics.