核电与清洁能源转型科学论坛开幕

国际原子能机构总干事拉斐尔·马里亚诺·格罗西今天在2020年科学论坛开幕式上说,为实现气候变化目标,几乎所有的电力都将需要实现低碳,而这只有在增加利用核电的情况下才有可能。

原子能机构2020年核电与清洁能源转型科学论坛今日开幕。(照片来源:D. Calma/原子能机构)

国际原子能机构总干事拉斐尔·马里亚诺·格罗西今天在2020年科学论坛开幕式上说,为实现气候变化目标,几乎所有的电力都将需要实现低碳,而这只有在增加利用核电的情况下才有可能,“这将要求我们利用所有不排放温室气体的能源。核电是解决方案的一部分。”

核电是一种有适应力的能源,即使是在大流行病期间也证明了这一点,它已提供全部低碳电力的三分之一。鉴于在原子能利用方面的科技进步,今年的科学论坛将审查核电如何能在清洁能源转型中发挥作用,从而帮助各国实现气候和发展目标。

格罗西先生强调了创新为何是核电充分实现其潜力所必需的,“先进大型反应堆正在有助于使核电更容易获得、可持续并负担得起。创新正在用于或被考虑用于优化核电厂的运行和维护。” 

格罗西先生补充说,工业、交通及建筑供暖和制冷等其他严重依赖化石燃料的部门也必须实现无碳化。氢越来越被视为一种化石燃料的替代物,核电则能够无排放生产氢,“例如,氢可用于为燃料电池汽车提供动力,或者作为储能的一种方式。它越来越被视为清洁能源转型的一个关键促进因素。”

科学论坛将于今后两天在原子能机构第六十四届大会期间举办。高级官员和权威专家将讨论核电的最新突破和发展及其在满足世界当前和未来能源需求方面的作用。为期两天的活动将有四场单元会议,以现场和虚拟两种方式举行。点击此处查看完整日程。

科学论坛的实况直播可在此观看。

开幕会议

巴西矿产和能源部长本托·科斯塔·利马·莱特·阿尔布开克说,在这次大流行病期间,巴西的核部门帮助维持了其能源供应。

巴西依赖多种能源 — 生物质能、生物燃料、水电、风能太阳能、碳氢化合物和核能。他说,“30年内,巴西的能源需求将增加到2.5倍,核电容量将增加约10吉瓦。”

最新的技术发展 — 从快增殖堆和小型模块堆到安全和安保标准的改进 — 正在使核电厂定位于在混合系统中与其他能源相结合。阿尔布开克先生说,“未来是明确的:核技术与间歇性可再生能源相结合的混合动力系统将用于电力生产和工业供热”。

在英国,核能正在帮助消除对煤电的依赖以及在2050年前达到净零排放。英国商业、能源和产业战略大臣阿洛克·夏尔马在视频发言中说:“今年前四个月,英国超过60%的电力来自低碳能源,这一清洁电力的四分之一产自核电。”夏尔马先生是计划于2021年11月在英国举行的联合国气候变化大会第二十六届缔约方会议的主席。

“我们知道,一个清洁的未来取决于电力部门的脱碳,”夏尔马先生说,“作为一种持久性低碳电力的来源,核能能够发挥重要作用。”

夏尔马先生认为,“如果我们使(核能)更加负担得起,我们可以通过降低整个行业的成本和建设时间让核能更容易获得,从而帮助低碳电力在全球获得新的消费者和进入新市场。”

联合国欧洲经济委员会执行秘书奥尔加·阿尔加耶罗娃也认为需要部署更多低碳电力,“为实现绿色能源系统所作的努力只带来了有限的收益。我们需要部署每项技术[……]。如果核能被排除在外,我们将无法共同实现我们的目标。”

国际能源机构执行主任法蒂赫·比罗尔说,核能是应对气候变化的解决方案的一部分。他列举了三个主要理由:

  1. 核电占全球清洁电力的第二大份额。
  2. 太阳能和风能将增长,但它们只能提供间歇性能源。
  3. 核电能够在工业部门脱碳方面发挥关键作用。

“应对气候的挑战规模如此之大,以致于我们无法把核能排除在外,”比罗尔说,“我们必须致力于利用我们所拥有的全部技术。”

为了让核能发挥其潜力,铀浓缩公司(一个运营铀浓缩厂的核燃料公司)的首席执行官鲍里斯·舒赫特指出了需要政治领导人和政府官员给予核能更大支持的领域。需要制定一个政策框架,对碳进行定价并适用于所有主要的温室气体产生者,以创造一个平等竞争的环境。舒赫特先生说,“没有为碳排放定价的市场不会为核电创造适当的激励。”

同时,他也认为,核能需要更具成本效益。 “我们需要实现持续的成本效益”,包括通过标准化,他补充说,“协作、促成这些事情发生应当是这次会议留给我们的功课。”

菲律宾能源部长阿方索·库西说,就菲律宾而言,2019冠状病毒病的影响已暴露其能源系统的薄弱之处,进一步突出了解决能源安全供应的紧迫性。能源部正在倡导负责任地开发和利用包括核能在内的所有能源。

今年早些时候,根据一项行政命令设立了一个核能计划委员会。库西先生说,“预计该委员会将介入并继续与原子能机构的合作。这是朝着实现菲律宾核能计划迈出的重要一步。”

中国有48台在运核电机组和13台在建核电机组。中国国家原子能机构主任张克俭在视频发言中说,核电被认为是中国能源结构的一个重要组成部分,也是应对气候变化和履行减排承诺的一个可靠的选项。

“中国实施了创新驱动发展战略,强调安全、协作和共享,”他说, “我们对多用途小型模块堆开展了集中研发,加快[它们]在区域供热、工业供气、海水淡化等领域的应用。”

在法国,无碳电力生产是实现“巴黎协定”框架内各项目标的一个重要资产。法国原子能委员会行政总长弗朗索瓦·雅克说,核能仍将是法国能源转型战略的重中之重。“气候挑战正迫使我们降低能源消耗 — 尤其是化石燃料 — 并加强低碳能源生产方式,如可再生能源和核能。”

开幕会议录像可在Facebook上观看。阅读最新版《国际原子能机构通报》— 核电。在社交媒体上关注#IAEAGC了解大会和科学论坛讨论的最新情况。

讨论将在今后两天举行的四次单元会议上继续进行。

单元会议综述

第一单元会议:创新促进实现清洁能源转型

第一单元会议将侧重于核能部门用于实现气候和发展目标的科技创新。还将探讨核电当前在清洁能源转型中的作用,同时突出强调支撑对不断增加的可变可再生能源份额形成补充的反应堆长期运行的突破。

第二单元会议:提高标准:核能促进实现“深度无碳化”

减排不仅在电力生产中是必要的,在关键工业部门的能源消耗中也是必要的。该单元会议将突出强调核电如何能够通过为产业提供工艺热、为建筑物提供区域供热、为干旱地区淡化海水以供饮用以及为各种用途生产氢气来支持这种“深度无碳化”— 最终引领走向净零排放。

第三单元会议:面向可持续未来的创新:管理能源寿期

将审查核能生产的外部因素及其管理,包括乏核燃料的贮存和处置方法。将重点强调核燃料循环的创新,以期将回收利用提高到新的水平并减少高放废物的体积和毒性。

第四单元会议:促进清洁能源转型

该单元会议将重点讨论妨碍更多地使用核电的障碍,如财政关切。还将突出强调原子能机构在促进技术革新和向其成员国转让这种技术方面的作用。

闭幕会议

最后会议将回顾讨论的主要结论,并为成员国和原子能机构今后的行动传递信息。

Opening session

During the pandemic, Brazil’s nuclear sector helped to sustain its energy supply, said Bento Costa Lima Leite de Albuquerque Junior, Minister of Mines and Energy.

Brazil relies on diverse sources of energy – biomass, biofuels, hydro, wind solar, hydrocarbons and nuclear. “In 30 years, energy demand in Brazil will increase up to 2.5 times, and nuclear capacity will increase about 10 GW,” he said.

The latest technical developments – from fast breeder and small modular reactors to improvements in safety and security standards – are positioning nuclear plants to integrate with other energy sources in hybrid systems. “The future is clear: Hybrid power systems that combine nuclear technologies with renewable intermittent sources for power generation and industrial heating,” Mr Albuquerque said.

In the UK, nuclear is helping to eliminate reliance on coal power and to reach net zero emissions by 2050. “In the first four months of this year, more than 60 per cent of the UK’s electricity came from low carbon sources, and a quarter of this clean electricity was generated by nuclear power,” said Alok Sharma, UK Secretary of State for Business, Energy and Industrial Strategy, in a video statement. Mr Sharma is the President of COP 26, the UN Climate Change Conference, scheduled to take place in November 2021 in the UK.

“We know that a clean future depends on decarbonizing the power sector,” Mr Sharma said, “and as a source of constant, low-carbon power, nuclear can play an important role.”

“If we make [nuclear] more affordable, we make it more accessible by reducing costs and construction times across the industry, helping low-carbon power to reach new consumers and markets across the globe,” Mr Sharma said.

The need to deploy more low-carbon power was echoed by Olga Algayerova, Executive Secretary of the United Nations Economic Commission for Europe (UNECE). “Efforts to green the energy system have brought only modest gains. We need to deploy every technology [...]. We will not achieve our objective collectively if nuclear energy is excluded.”

Fatih Birol, Executive Director of the International Energy Agency, said that nuclear is part of the solution to address climate change. He listed three main reasons:

  1. Nuclear power accounts for the second largest share of clean electricity worldwide.
  2. Solar and wind power will grow, but they can only provide intermittent energy.
  3. Nuclear power can play a critical role in decarbonizing the industrial sector.

“The scale of the challenge of addressing climate is so big that we cannot afford to exclude nuclear from the table,” Mr Birol stated. “We must work to use all technology we have.”

To position nuclear to fulfil its potential, Boris Schucht, CEO of Urenco, a nuclear fuel company operating uranium enrichment plants, pointed to areas in which nuclear needs greater support from political leaders and government officials. A policy framework that places a price on carbon and extends to all major producers of greenhouse gases is needed to create a level playing field. “Markets where carbon emissions do not have a price do not create the right incentive for nuclear power,” Mr Schucht said.

At the same time, nuclear needs to become more cost effective, he said. “We need to achieve sustained cost efficiencies,” he added, including through standardization. “It should be our homework from this conference to collaborate, to make these things happen.“

For the Philippines, COVID-19’s impact has revealed weaknesses in its energy system, further underscoring the urgency to address energy security supply, said Alfonso Cusi, Secretary of the Department of Energy. The Department is advocating for the responsible development and utilization of all energy sources, including nuclear.

Earlier this year an executive order created a nuclear energy programme committee. “The committee is expected to step in and continue collaborative work with the IAEA. This is a major step toward the realization of a Philippine nuclear energy programme,” Mr Cusi said.

In China, there are 48 nuclear power reactors in operation and 13 units under construction. Nuclear power is considered an essential part of the country’s energy mix and a reliable option to deal with climate change and to fulfil commitments to reduce emissions, said Zhang Kejian, Chairman of the China Atomic Energy Authority (CAEA) in a video statement.

“China has adopted a strategy of innovation-driven development, placing emphasis on safe reliance, collaboration and co-sharing,” he said. “We have carried out intensive R&Ds on multi-purpose small modular reactors, speeding up [their] applications in fields of district heating, industrial gas supply, sea water desalinization, etc.”

In France, the production of carbon-free electricity is a major asset to achieve goals within the Paris Agreement framework. Nuclear will remain at the head of the French energy transition strategy, said François Jacq, General Administrator of the French Atomic Energy Commission (CEA). “Climate challenges are forcing us to reduce our energy consumption – in particular fossil fuels – and to strengthen low carbon energy production modes, such as renewable and nuclear energies.”

A recording of the opening session is available on Facebook. Read the latest edition of the IAEA Bulletin on nuclear power. Follow the #IAEAGC on social media to get updates on the General Conference and the discussion on the Scientific Forum.

The discussion will continue in four sessions during the next two days.

Overview of the sessions

Session 1: Innovations for achieving a clean energy transition

The first session will focus on the scientific and technological innovations in the nuclear energy sector for climate and development goals. Nuclear power’s current role in the clean energy transition will also be explored, highlighting breakthroughs that support the long-term operation of reactors to complement increasing shares of variable renewable energy sources.

Session 2: Raising the bar: Nuclear energy for "deep decarbonization"

Emission reductions are necessary not only in electricity production but also in energy consumption across key industrial sectors. This session will highlight how nuclear power is able to support this “deep decarbonization” by furnishing process heat for industries and district heat for buildings, desalinating seawater for consumption in arid regions, and producing hydrogen for a variety of uses – ultimately leading the way to net zero emissions.

Session 3: Innovations for a sustainable future: Managing the energy life cycle

The externalities of nuclear energy production and their management, including storage and disposal methods for spent nuclear fuel, will be examined. Innovations in the nuclear fuel cycle will be highlighted to bring recycling to a new level and to reduce both the volume and toxicity of high-level waste.

Session 4: Advancing the clean energy transition

This session will focus on barriers hindering the greater use of nuclear power, such as financial concerns. The IAEA’s role in fostering technological innovation and in transferring this technology to its Member States will also be highlighted.

Closing session

The final session will review main conclusions of the discussions and signal future actions for Member States and the IAEA.