DNV:全球能源转型展望2022—氢能预测至2050(英).pdf
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1、HYDROGEN FORECAST TO 2050Energy Transition Outlook 20222DNV Hydrogen forecast to 2050 CONTENTS Foreword 3 Highlights 41 Introduction 8 1.1 Properties of hydrogen 9 1.2 Todays industrial use and ambitions 12 1.3 Hydrogen value chains 15 1.4 Safety, risks and hazards 20 1.5 Hydrogen investments risks
2、262 Hydrogen policies and strategies 30 2.1 Policy and the hydrogen transition 30 2.2 Details on the policy and regulatory landscape 34 2.3 Regional hydrogen policy developments 37 2.4 Policy factors in our hydrogen forecast 463 Producing hydrogen 48 3.1 Ways of producing hydrogen 48 3.2 Hydrogen fr
3、om fossil fuels: methane reforming and coal gasification 50 3.3 Hydrogen from electricity: electrolysis 524 Storage and transport 56 4.1 Ways of transporting and storing hydrogen 56 4.2 Storage 58 4.3 Transmission transport system 61 4.4 Distribution pipelines 65 4.5 Shipping hydrogen 665 Hydrogen:
4、forecast demand and supply 70 5.1 Hydrogen production 73 5.2 Hydrogen as feedstock 78 5.3 Hydrogen as energy 816 Trade infrastructure 92 6.1 Seaborne interregional transport 93 6.2 Pipeline transport 947 Deep dive: evolution of value chains 96 7.1 Four competing hydrogen value chains 96 7.2 Solar PV
5、 in Southern Spain 98 7.3 Geothermal energy in Iceland 101 7.4 Offshore wind on the North Sea 104 7.5 Nuclear power 106 7.5 Comparison and conclusion 108 References 110 Project team 113 3ForewordFOREWORDRemi EriksenGroup president and CEODNVWelcome to DNVs first standalone forecast of hydrogen in th
6、e energy transition through to 2050.While there are ambitious statements about the prominent role that hydrogen could play in the energy transition, the amount of low-carbon and renewable hydrogen currently being produced is negligible. That, of course, will change. But the key questions are, when a
7、nd by how much? We find that hydrogen is likely to satisfy just 5% of global energy demand by 2050 two thirds less than it should be in a net zero pathway. Clearly, much stronger policies are needed globally to push hydrogen to levels required to meet the Paris Agreement. Here it is instructive to l
8、ook at the enabling policies in Europe where hydrogen will likely be 11% of the energy mix by 2050.Five percent globally translates into more than 200 million tonnes of hydrogen as an energy carrier, which is still a significant number. One fifth of this amount is ammonia, a further fifth comprises
9、e-fuels like e-methanol and clean aviation fuel, with the remainder pure hydrogen.Hydrogen is the most abundant element in the universe, but only available to us locked up in compounds like fossil fuels, gasses and water. It takes a great deal of energy to liberate those hydrogen molecules either in
10、 blue form via steam methane reforming of natural gas with CCS, or as green hydrogen from water and renewable electricity via electrolysis. By 2050, more than 70% of hydrogen will be green. Owing to the energy losses involved in making green hydrogen, renewables should ideally first be used to chase
11、 coal and, to some extent, natural gas, out of the electricity mix. In practice, there will be some overlap, because hydrogen is an important form of storage for variable renewables. But it is inescapable that wind and solar PV are prerequisites for green hydrogen; the higher our ambitions, the grea
12、ter the build-out of those sources must be.Hydrogen is expensive and inefficient compared with direct electrification. In many ways, it should be thought of as the low-carbon energy source of last resort. However, it is desperately needed. Hydrogen is especially needed in those sectors which are dif
13、ficult or impossible to electrify, like aviation, shipping, and high-heat industrial processes. In certain countries, like the UK, hydrogen can to some extent be delivered to end users by existing gas distribution networks at lower costs than a wholesale switch to electricity. Because hydrogen is cr
14、ucial for decarbonization, safety must not become its Achilles heel. DNV is leading critical work in this regard: hydrogen facilities can be engineered to be as safe or better than widely-accepted natural gas facilities. That means safety measures must be designed into hydrogen production and distri
15、bution systems, which must be properly operated and maintained throughout their life cycles. The same approach must extend to the hydrogen carrier, ammonia, which will be heavily used to decarbonize shipping. There, toxicity is a key concern, and must be managed accordingly.It is no easy task to ana
16、lyse the technologies and policies that will kick-start and scale hydrogen and then model how hydrogen will compete with other energy carriers. As we explain in this report, there will be many hydrogen value chains, competing not just on cost, but on timing, geography, emission intensity, risk accep
17、tance criteria, purity, and adaptability to end-use. I commend the work my colleagues have done in bringing this important forecast to you, and, as always, look forward to your feedback. 4HIGHLIGHTSForecast Renewable and low-carbon hydrogen is crucial for meeting the Paris Agreement goals to decarbo
18、nize hard-to-abate sectors. To meet the targets, hydrogen would need to meet around 15% of world energy demand by mid-century. We forecast that global hydrogen uptake is very low and late relative to Paris Agreement requirements reaching 0.5% of global final energy mix in 2030 and 5% in 2050, althou
19、gh the share of hydrogen in the energy mix of some world regions will be double these percentages. Global spend on producing hydrogen for energy purposes from now until 2050 will be USD 6.8trn, with an additional USD 180bn spent on hydrogen pipelines and USD 530bn on building and operating ammonia t
20、erminals.DNV Hydrogen forecast to 2050 Highlights5 Grid-based electrolysis costs will decrease significantly towards 2050 averaging around 1.5 USD/kg by then, a level that in certain regions also will be matched by green hydrogen from dedicated renewable electrolysis, and by blue hydrogen. The globa
21、l average for blue hydrogen will fall from USD 2.5 in 2030 to USD 2.2/kg in 2050. In regions like the US with access to cheap gas, costs are already USD 2/kg. Globally, green hydrogen will reach cost parity with blue within the next decade. Green hydrogen will increasingly be the cheapest form of pr
22、oduction in most regions. By 2050, 72% of hydrogen and derivatives used as energy carriers will be electricity based, and 28% blue hydrogen from fossil fuels with CCS, down from 34% in 2030. Some regions with cheap natural gas will have a higher blue hydrogen share. Cost considerations will lead to
23、more than 50% of hydrogen pipelines globally being repurposed from natural gas pipelines, rising to as high as 80% in some regions, as the cost to repurpose pipelines is expected to be just 10-35% of new construction costs.6HIGHLIGHTSHIGHLIGHTS Hydrogen will be transported by pipelines up to medium
24、distances within and between countries, but almost never between continents. Ammonia is safer and more convenient to transport, e.g. by ship, and 59% of energy-related ammonia will be traded between regions by 2050. Direct use of hydrogen will be dominated by the manufacturing sector, where it repla
25、ces coal and gas in high-temperature processes. These industries, such as iron and steel, are also where the uptake starts first, in the late 2020s. Hydrogen derivatives like ammonia, methanol and e-kerosene will play a key role in decarbonizing the heavy transport sector (aviation, maritime, and pa
26、rts of trucking), but uptake only scales in the late 2030s. We do not foresee hydrogen uptake in passenger vehicles, and only limited uptake in power generation. Hydrogen for heating of buildings, typically blended with natural gas, has an early uptake in some regions, but will not scale globally.DN
27、V Hydrogen forecast to 2050 7HighlightsInsights Hydrogen requires large amounts of either precious renewable energy or extensive carbon capture and storage and should be prioritized for hard-to-abate sectors. Elsewhere, it is inefficient and expensive compared with the direct use of electricity. Una
28、bated fossil-based hydrogen used as an industrial feedstock (non-energy) in fertilizer and refineries can be replaced by green and blue hydrogen immediately an important existing source of demand before fuel switching scales across energy sectors. Safety (hydrogen) and toxicity (ammonia) are key ris
29、ks. Public perception risk and financial risk are also important to manage to ensure increased hydrogen uptake. The low and late uptake of hydrogen we foresee suggests that for hydrogen to play its optimal role in the race for net zero, much stronger policies are needed to scale beyond the present f
30、orecast, in the form of stronger mandates, demand-side measures giving confidence in offtake to producers, and higher carbon prices.8DNV Hydrogen forecast to 2050 Hydrogen has been used in large quantities for well over 100 years as a chemical feedstock, in fertilizer production, and in refineries.
31、However, the present use of hydrogen as an energy carrier is negligible. That is because the production of hydrogen itself must be decarbonized currently at high cost before it can play a prominent role in the drive to decarbonize the energy system. That formidable cost barrier is not deterring the
32、energy industrys interest in hydrogen, although the number of projects with investment decisions and in a construction phase is still at a modest level. Further up the innovation pipeline, there are many feasibility studies from both existing technology suppliers, and start-ups are devel-oping more
33、efficient and larger-scale concepts.Hydrogen normally has significant cost, complexity, efficiency, and often safety disadvantages compared with the direct use of electricity. However, for many energy sectors, the direct use of electricity is not viable, and hydrogen and its derivatives such as ammo
34、nia, methanol and e-kerosene are the prime low-carbon contenders sometimes competing with biofuel. There is an emerging consensus that low-carbon and renewable hydrogen will play an important role in a future decarbonized energy system. How prominent a role remains uncertain, but various estimates p
35、oint to hydrogen being anything from 10 to 20% of global energy use in a future low-carbon energy system. DNVs own Pathway to Net Zero has hydrogen at 13% of a net zero energy mix by 2050 and gaining share rapidly by then. Our present task, with this forecast, is not to state what share hydrogen sho
36、uld take in the 2050 energy mix, but what share it is likely to take. We find that hydrogen is not on track to fulfil its full net zero role by mid-century in fact far from it. Our forecast shows that hydrogen is likely to satisfy just 5% of energy demand by 2050. Scaling global hydrogen use is bese
37、t by a range of challenges: availability, costs, acceptability, safety, efficiency, and purity. While it is widely understood that urgent upscaling of global hydrogen use is needed to reach the Paris Agreement, the present pace of develop- ment is far too slow and nowhere near the acceleration we se
38、e in renewables, power grid, and battery storage installations. Nevertheless, there is a great deal of interest among a range of stakeholders and the media in the promise of hydrogen. Yet very few commentators are taking a careful, dispassionate look at the details behind hydrogens likely global gro
39、wth pathway.This report is a part of DNVs annual Energy Transition Outlook (ETO) suite of reports. The results presented here will be part of the 2022 version of the main ETO report to be released in October 2022. Our insights and conclusions in this hydrogen forecast are based on more detailed hydr
40、ogen modelling in DNVs ETO model, including new modules for hydrogen trade and transport and a much closer study of new production methods and hydrogen derivatives. Our aim with this forecast is not to state what share hydrogen should take in the 2050 energy mix, but what share it is likely to take.
41、 The report starts by explaining the properties and present use of hydrogen, as well as safety and invest-ment risks, and continues by describing present and likely future hydrogen policies and strategies. Chapters 3 and 4 go into the details of hydrogen technologies for production, storage and tran
42、sport. The results from DNVs modelling of hydrogen uptake are presented in Chapter 5, looking at hydrogen production and use in the different energy sectors. Chapter 6 covers the trade of hydrogen. The final chapter dives into examples and a comparison of different hydrogen supply chains.1 INTRODUCT
43、ION9Introduction 11.1 Properties of hydrogen Hydrogen is both familiar and different from anything else in the energy system. As with electricity, hydrogen is an energy carrier that can be produced via renewable energy, and like electric power, it can be used to charge batteries (comprised of fuel c
44、ells). Like a fossil fuel, hydrogen is explosive and produces heat when combusted; it can be extracted from hydrocarbons, held in tanks, moved through pipelines, and stored long term; it can be transformed between gaseous and liquid states and converted into derivatives. These properties make hydrog
45、en a fascinating prospect in the energy transition, but also create barriers to its adoption in terms of safety, infrastructure, production, use cases, and commercial viability.Abundant, but costly to produce as a low-carbon and renewable energy carrier Hydrogen is the most abundant element in the u
46、niverse, but on Earth it is found only as part of a compound, most commonly together with oxygen in the form of water but also in hydrocarbons. 1 Abundant, but costly to produce as a low-carbon energy carrier2 Combustible, but behaves differently to natural gas3 Light weight, but low energy density
47、is an issue4 Liquid hydrogen and derivatives overcome limitations, but conversion is inefficient5 Great potential, but also significant challengesFIGURE 1.1Hydrogen properties$10DNV Hydrogen forecast to 2050 For use as an energy carrier or zero-emission fuel, hydrogen must temporarily be released fr
48、om its bond with oxygen or extracted from hydrocarbons. Hydrogen is the simplest of all elements, but processes to produce it in its pure form are not so simple: they are energy intensive and involve large energy losses, have significant costs, and can produce their own carbon emissions. The main dr
49、iver of widescale hydrogen use is to decarbonize the energy system, and more specifically those parts of it that are hard-to-abate (i.e., cannot be directly electrified). This makes it essential to produce and transport low or zero emission hydrogen, with efficient use of water and byproducts such a
50、s waste heat and oxygen.Hydrogen is the simplest of all elements, but processes to produce it in its pure form are not so simple: they are energy intensive and involve large energy losses, have significant costs, and can produce their own carbon emissions.Combustible, but behaves differently to natu
51、ral gas Hydrogen is combustible and gaseous at normal atmospheric pressure and temperature, but it behaves differently to natural gas, requiring adaption or development of infrastructure, appliances, and safety standards. Relative to familiar alternatives such as natural gas or petrol vapours, hydro
52、gen ignites with very low energy and has a wide flammability range. The dispersion behaviour is different to other gases due to the small size of hydrogen atoms. Hydrogen is colourless, taste-less, and odourless, meaning that specific sensors or odorization are required to detect it, and additives a
53、re needed to produce the familiarity of a visible colour flame when burning hydrogen.Light weight, but low energy density is an issue Hydrogen is the lightest element and has high energy density compared to weight, offering some advantages for applications where weight can be an issue, such as in he
54、avy road transport. Overall, it is more relevant to consider hydrogens energy density compared with volume, which is very low compared to other fuels. This makes hydrogen more difficult to store and transport. Low energy density also reduces the feasibility of hydrogen at least in its gaseous form f
55、or use cases not connected directly or regularly to the grid, such as shipping and aviation. The solution is to condense hydrogen to a liquid which only partly solves the challenge or convert it to derivatives such as ammonia, methanol, or synthetic fuels.Liquid hydrogen and derivatives can overcome
56、 limitations, but conversion is inefficient and can be costly Compressed hydrogen is in general the most cost- effective way of transporting large volumes over long distances, but this requires pipelines and presents techni-cal challenges. Hydrogen may need to be operated at different pressures (or
57、velocity) than natural gas/biome-thane and could have an adverse effect on materials (e.g., in pipes and valves).To match some of the density and flexibility benefits of liquid fuels, such as gasoline and diesel, hydrogen can be condensed into a liquid, but the temperature point for hydrogen liquefa
58、ction is extremely low at -253C, requiring significant energy. Even in its liquid state hydrogen is not as energy dense as comparable fossil fuels. Liquid hydrogen also has different safety characteristics than compressed gaseous hydrogen for example, becoming a heavy gas when released that may accu
59、mulate, rather than rising and dissipating as with compressed hydrogen gas.Hydrogen can be converted to derivatives such as ammonia, which has a higher energy density per volume than liquid hydrogen and can be stored and transported as a liquid at low pressures or in cryogenic tanks at around -33C a
60、t 1 bar. Ammonia can be transported at low cost by pipelines, ships, trucks, and other bulk modes. The caveat is that the ammonia synthesis, and its subsequent dehydrogenation to release hydrogen, requires significant energy. 11Introduction 1Great potential, but also significant challenges The prope
61、rties of hydrogen give it great potential in the energy transition, and there are solutions to the challenges presented by hydrogen properties. The trade-off is often the energy required to implement these solutions. The separation or extraction process for hydrogen production requires energy, and t
62、he energy content of the output hydrogen is always less than the energy content of the input fuel, plus the energy required for the hydrogen process. In other words, producing and converting hydrogen is inefficient and involves large losses. Hydrogen is also generally more energy intensive to store
63、and transport than other conventional fuels. The value of hydrogen in pure form to users or to society at large must be sufficient to justify the energy losses in its production, distribution, and use. The properties of hydrogen require consideration across the hydrogen value chain based on applicat
64、ion and context, to determine the best source, state, and derivative, and associated infrastructure and appliance, to maximize the benefits of hydrogen properties and minimize negative impacts. A successful hydrogen value chain will balance the pros and cons, physical and safety/risks, costs and ben
65、efits, and decarbonization potential of hydrogen against other energy carriers and fuels. One major consideration is the relationship between greater electrification and widescale hydrogen use. Where decarbonization through direct electrification of a sector is feasible, this is the first priority d
66、ue to the inefficiencies of converting electricity to hydrogen. Where electrification is not an option or a very poor one then hydrogen is the best alternative, as is the case in many so-called hard-to-abate sectors. The energy industry is clear on where hydrogen and electri-fication can play a role
67、: some 80% of energy professionals we surveyed believe that hydrogen and electrification will work in synergy, helping both to scale up; just 16% believe hydrogen and electrification will be in competition for the same share of the energy mix1.12DNV Hydrogen forecast to 2050 1.2 Todays industrial us
68、e and ambitions Hydrogen and its derivatives are produced in large quantities today, but as an energy carrier, its use is negligible. To meet the targets of the Paris Agreement, however, the existing industrial production of hydrogen must be decarbonized. More crucially, an additional very large qua
69、ntity of low-carbon hydrogen and its derivatives is needed as an energy carrier including heating in industry, shipping and aviation, and energy storage.Hydrogen production is already a thriving industry Hydrogen production is already a large and thriving industry. Except it is not low-carbon hydrog
70、en production that is thriving today. The hydrogen produced today is predominately used in fertilizer or for chemical feedstock and is produced from coal or natural gas without carbon capture. The associated emissions are significant: around 900 million tonnes of CO2 in 2020, or greater than the CO2
71、 emissions of France and Germany combined. Global demand for hydrogen and its derivatives as an industrial feedstock (i.e., non-energy hydrogen) is around 90 million tonnes per year (2020)2. In energy terms, this is equivalent to around 12 EJ or roughly 2% of world energy demand. To put this in pers
72、pective, DNV forecasts that demand for hydrogen as an energy carrier will not reach this level until the early 2040s. Non-energy hydrogen has a role to play in the energy transition, however. Tackling its emissions will help to scale and accelerate carbon capture and abatement technologies. Hydrogen
73、 today is used in oil refining, fertilizer, and industrial processes Todays hydrogen demand is split between pure 13Introduction 1hydrogen use in oil refining and demand for hydrogen from chemical production to produce derivatives such as ammonia and methanol. Of hydrogen used in chemical production
74、, roughly three-quarters is used for ammonia production and one-quarter for methanol. A relatively small proportion of hydrogen demand is also consumed directly in steel production. Petroleum refining Oil refineries are the largest consumer of hydrogen (around 37 Mt in 2020) using it to reduce the s
75、ulfur content of diesel oil and upgrade heavy residual oils into higher-value oil products. This demand is set to continue in the coming years as global oil demand remains around its current level, before declining from around 2030 with a fall in oil demand. Ammonia Around 33 Mt/yr of hydrogen is us
76、ed annually to produce ammonia (NH3), with 70% of this used as an essential precursor in producing fertilizers3. Accordingly, ammonia demand is correlated with global agricultural production, which continues to grow. Ammonia is traded around the world, with global exports equating to about 10% of to
77、tal produc-tion showing the feasibility of ammonia shipping and global ammonia trade, which will be an important enabler of the future hydrogen ecosystem. Methanol Around 13 Mt/yr of hydrogen is used each year for methanol production, which is used in industrial processes to produce the chemical for
78、mal-dehyde and in plastics and coatings. Steel Close to 5 Mt/yr of hydrogen annually is used directly in steel production for direct reduction of iron (DRI). Fossil fuels are currently used throughout the steelmaking process, in the form of coke, as a reducing agent, and as for various heat-intensiv
79、e stages of the iron- and steelmaking process all of which could be replaced by low-carbon hydrogen.The hydrogen produced today is almost exclusively produced from fossil fuels (grey, black and brown hydro-gen, from natural gas and coal respectively). However, carbon prices are rising, particularly
80、in Europe, and all industries are under mounting pressure to decarbonize particularly the oil and gas industry. From one perspec-tive, the transition from grey/black/brown hydrogen to blue and green (produced from fossil fuels with carbon capture, or by renewable energy) in oil refining, ammonia pro
81、duction, and other industrial uses could ensure early demand for low-carbon hydrogen, helping the hydrogen ecosystem i.e., value chains supporting hydrogen as an energy carrier to scale. From another perspective, these are large industries that will later compete with energy users for low-carbon hyd
82、rogen.Growing ambitions for hydrogen as an energy carrier Hydrogen has a new status as an important, viable, and rapidly-developing pillar of the energy transition. More than six in ten senior energy professionals surveyed by DNV in 2022 say that hydrogen will be a significant part of the energy mix
83、 by 20304, and close to half say their organization is actively entering the hydrogen market. More than this, the hydrogen pledges, plans, and pilots of recent years are now beginning to evolve into concrete commitments, investments and full-scale projects.To pursue their ambitions to increase their
84、 production of green and blue hydrogen in the coming years, producers will need greater certainty to have the confidence for large-scale investments and projects. This will require ambitious policies and government strategies, several industries simultaneously building the demand-side of the hydroge
85、n value chain, and realization of the expected huge growth in renewable generation. That growth has to accelerate beyond the demand for renewably-generated electricity to create clean, low-cost energy for green hydrogen production, and greater demand for hydrogen for energy storage.In line with clim
86、ate and net zero goals, many industries have a pressing need to replace carbon-intensive processes by reconfiguring their plants, machines, models, and practices to switch to hydrogen which can be a substitute for either fossil-fuel-based energy or feedstock needs in these industries. For example, l
87、ong-haul trucking fleets can replace diesel with hydrogen fuel cells; heat processes in cement, aluminium and steelmaking can be fuelled by hydrogen; and chemical companies that produce ammonia can swap grey/brown hydrogen feedstock for blue/green equivalents.We present the forecast demand and suppl
88、y in Chapter 5.14Low-carbon derivatives key to a widespread use of hydrogen as an energy carrier Just as hydrogen today is converted to ammonia and methanol for some industrial applications, widespread use of hydrogen as an energy carrier will also rely on hydrogen derivatives and hydrogen-based syn
89、thetic fuels, where the properties of these energy carriers make more sense for the application than pure hydrogen. These derivatives will need to be produced in a low- carbon way.Aviation and shipping stand out as the two sectors that will make the most significant use of low-carbon hydrogen deriva
90、tives. What they have in common is that they are disconnected from the grid and require large amounts of energy, meaning electrification or pure hydrogen are not feasible alternatives to the fossil-based fuels they currently rely on. The energy density of both pure hydrogen and batteries are too low
91、 to be used widely in these industries. Where these sectors differ from one another is the weight and space available for fuel storage, with weight particularly critical in aviation. Aviation Hydrogen-based synthetic fuels synthetic kerosene or similar are likely to be used in aviation, and we expec
92、t pure hydrogen to see some use for medium-haul flights, but we dont forecast significant uptake before the 2040s. Shipping There is no relevant battery electric option for decarbonizing the deep-sea shipping sector, with synthetic fuels, ammonia, hydrogen and biofuels being the most realistic low-c
93、arbon alternatives. These high-cost fuels, which can be implemented in hybrid configurations with diesel- and gas-fuelled propulsion, will see significant uptake, providing slightly over 42% of the maritime fuel mix by 2050, according to DNVs latest forecast. Hydrogen derivatives will also be used i
94、n the transport and storage of hydrogen, as we explore further in Chapter 5.FIGURE 1.3Energy industry ambitions for hydrogen Source: DNV Energy Industry Insights 2022, based on a survey concluding in January 2022. Overall Oil and gas Power Energy-consuming industries Renewables62%56%68%66%59%47%35%6
95、1%40%46%Hydrogen will be a significant part of the energy mix by 2030My organization is actively entering the hydrogen marketDNV Hydrogen forecast to 2050 151.3 Hydrogen value chainsThe market and value chains for hydrogen as an energy carrier are in their infancy even as the potential has been deba
96、ted for decades. Hydrogen markets today are mainly captive, with production taking place at or close to key industrial consumers. There are little to no open commodity markets for hydrogen, with the exception of markets for hydrogen derivatives such as ammonia and methanol. Hydrogen is currently alm
97、ost exclusively produced from natural gas and coal without CCS. In many if not most cases, an intermediate step to a fully decarbonized hydrogen value chain is through the production of blue hydrogen (i.e. CCS-based hydrogen production from fossil fuels) before surplus or dedicated renewable energy
98、is available in sufficient quantities for the large-scale production of green hydrogen. For hydrogen to play a meaningful role as a strategic decarbonized energy carrier, new value chains and the development of hydrogen markets are required.Many different hydrogen value chains will develop towards 2
99、050. This is partly due to the versatility of hydrogen: it can be produced from coal, natural gas, grid electricity, or dedicated renewables; it can be stored, transported, and used in its pure form, blended with natural gas, or converted to derivatives; and it will be consumed across a range of ind
100、ustries and applica-tions, including maritime shipping, heat production, road transport, and aviation. Introduction 1DNV Hydrogen forecast to 2050 16SourcingSolarDedicated REproductionElectricity generationCoal andbiomassNatural gasWindHydroNuclearConversion to ammoniaConversion to methanol / e-fuel
101、sDirect use ofhydrogenElectrolysisw/ CCS= size of CO2 footprint, including lifecycle emissions.w/ CCSWaterGasificationMethane reforming40%ConversionFossil HYDROGEN PRODUCTION AND USE IN 2050 DNV Hydrogen forecast to 2050 17Introduction 1AmmoniashippingNH3NH3HydrogenshippingHydrogenpipelinesTruck wit
102、hgas tanksPipelinesAviationIndustryMaritimeRefineryTrucksBuildings HeatingIndustrialheatingFertilizerPowerGas gridInter-regionalregional20%40%TransportUseThis figure presents hydrogen production and use flows in 2050. The thickness of the flow lines approximates the volume of each flow indicating ma
103、jor production routes and end uses in 2050. However, in contrast to the Sankey diagram shown on page 68, no losses are displayed here. By 2050, the vast majority of hydrogen produced is low-carbon hydrogen either from renewable sources or CCS based fossil production. DNV Hydrogen Report 2022Introduc
104、tion 1FIGURE 1.4Comparison of selected hydrogen value chains and their competitorsPrimary energy sourceEnergy carrierEnergy serviceFinal energycontentSpace heatingPassenger road vehiclesShipsUseful heatRenewable electricityElectrolysisBoilerHydrogen57%33% losses 4% Transportation losses6% LossesUsef
105、ul heatNatural gasBoiler85%9% Losses6% Transportation lossesDedicated renewable electricityUseful heatPower generation (2020 world avg mix)Heat pump (2020 avg efficiency)Grid electricity135%51% losses3% Transportation lossesRenewable electricityFossil, nuclear, biomassAmbient heatUseful heatPower ge
106、neration (2050 world avg mix)Heat pump (2050 avg efficiency)Grid electricity307%22% losses4% Transportation lossesRenewable electricityFossil, nuclear, biomassAmbient heat12% Refining & transportation losses 72% LossesOilInternal combustion engineUsable energy16%Methane reforming with CCSHydrogen24%
107、 losses 4% Transportation losses6% Processing & transportation losses 38% LossesNatural gasFuel cell engineUsable energy27%Dedicated renewable electricityPower generation (2020 world avg mix)Grid electricity51% losses3% Transportation losses11% LossesRenewable electricityFossil, nuclear, biomassElec
108、tric engineUsable energy35%12% Refining & transportation losses 49% LossesOilInternal combustion engineUsable energy39%Renewable electricityElectrolysis & ammonia synthesisAmmonia48% losses3% Transportation losses27% LossesInternal combustion engineUsable energy22%Renewable electricityElectrolysis &
109、 methanol synthesisE-fuels51% losses3% Transportation losses26% LossesInternal combustion engineUsable energy20%Power generation (2050 world avg mix)Grid electricity22% losses4% Transportation losses11% LossesRenewable electricityFossil, nuclear, biomassElectric engineUsable energy63%DNV Hydrogen fo
110、recast to 2050 1819Introduction 1Efficiencies, economics, emissions, and geography key to determining viable value chains Determining viable hydrogen value chains is not just about linking production to consumption. It is considering energy efficiencies and losses, economics, greenhouse gas emission
111、s, and geography in terms of both location for transport, and resources such as natural gas and renewable energy for production. Issues of public acceptance and safety addressed in Section 1.4 are also pivotal. Figure 1.4 shows alternative hydrogen value chains and their associated energy losses. En
112、ergy loss is important when it comes to deciding a value chain, as it also determines the economic situation. However, the overall economic situation is usually the main determinant for the setup and design of a hydrogen value chain. The production of hydrogen is associated with significant losses i
113、n each value chain, but when the source of hydro-gen production, like renewable electricity in the coming decades, is abundantly available, energy losses will be less important in the long term. Value chain greenhouse gas emissions will be a decisive factor in establishing specific hydrogen value ch
114、ains. Takers of hydrogen, such as countries or end-use sectors, will have preferences on the value chain greenhouse gas emissions and thus incentivize their implementation. Transport of hydrogen is another decisive factor influencing a hydrogen value chain. Some world regions might not be able to su
115、pply their regional needs of hydrogen and thus have to import hydrogen via pipelines or maritime shipping. Related to this is the factor of geographies. Whereas some regions in the world can use abundant resources from wind and solar to produce green hydrogen, other regions might need to rely on hyd
116、rogen from natural gas. All of the above is of course surrounded by economic assessments as hydrogen is expensive to produce and needs to be used sensibly. As illustrated in Figure 1.4, there are plenty hydrogen value-chain permutations, impacted by, amongst others, the aforementioned factors. The s
117、pecific details combining in each of these chains, such as sources, conversion, transport, end use, etc. are presented in more detail in the coming chapters. Skills and standards key to successful implementation of new value chains The implementation of hydrogen in the energy system will re-use exis
118、ting energy industry skills and services across the whole supply chain. These will be transferred from the oil and gas sector to support both blue and green hydrogen. Connected to blue hydrogen, oil and gas skills will have to be retained to produce natural gas for refineries to reform into blue hyd
119、rogen. Standards and procedures for existing offshore opera-tions will help ensure the safety and success of the new hydrogen industry. For example, connected to green hydrogen, offshore wind will involve the installation of ever larger wind turbines requiring knowledge of floating and fixed structu
120、res in deep water and operation in challenging weather conditions. The hydrogen supply chain will also include ports and logistics, pipeline design and manufacture, transmission and distribution infrastructure, safety assessments, above ground storage tanks and below ground geological hydrogen stora
121、ge. Each of these will require skilled labour. Chapter 7 dives more deeply into value-chain evolution, with examples and details of their economics and possible growth paths.Value chain greenhouse gas emissions will be a decisive factor in establishing specific hydrogen value chains. ERR 能研微讯 微信公众号:
122、Energy-report 欢迎申请加入 ERR 能研微讯开发的能源研究微信群,请提供单位姓名(或学校姓名) ,申请添加智库掌门人(下面二维码)微信,智库掌门人会进行进群审核,已在能源研究群的人员请勿申请;群组禁止不通过智库掌门人拉人进群。 ERR 能研微讯聚焦世界能源行业热点资讯,发布最新能源研究报告,提供能源行业咨询。 本订阅号原创内容包含能源行业最新动态、趋势、深度调查、科技发现等内容, 同时为读者带来国内外高端能源报告主要内容的提炼、摘要、翻译、编辑和综述,内容版权遵循 Creative Commons 协议。 知识星球知识星球 提供能源行业最新资讯、政策、前沿分析、报告(日均更新 1
123、5 条+,十年 plus 能源行业分析师主理) 提供能源投资研究报告(日均更新 812 篇,覆盖数十家券商研究所) 二维码矩阵二维码矩阵 资报告号:ERR 能研微讯 订阅号二维码(左)丨行业咨询、情报、专家合作:ERR 能研君(右) 视频、图表号、研究成果:能研智库 订阅号二维码(左)丨 ERR 能研微讯头条号、西瓜视频(右) 能研智库视频号(左)丨能研智库抖音号(右) 20DNV Hydrogen forecast to 2050 1.4 Safety, risks and hazards Hydrogen is not new to society; it has been produce
124、d and used in large quantities for over a century. However, this has mostly been in industrial environments where there is a good degree of control, and where facilities are managed by people who have a clear understanding of the potential hazards. The forecast significant growth in the market for h
125、ydrogen as an energy carrier will introduce many new hydrogen facilities that are very different from those we have had in the past. Moreover, some of the facilities will be in much closer proximity to the public and will be built and operated by new entrants who may not have relevant experience in
126、hydrogen safety. Our previous experience of hydrogen safety is thus an imperfect guide, at best, as to what might happen in the future. Detonation of hydrogen is entirely credible at scales representative of many scenarios where it is not for traditional hydrocarbons. This image shows a still image
127、from a 15 m3 hydrogen detonation conducted as a demonstration at DNVs Spadeadam Research Centre in the UK21Introduction 1Risk perception will be an important factor in acceptance of hydrogen use. Accidents involving hydrogen are likely to receive more media attention than comparable events with conv
128、entional fuels (at least initially) and this could excite public resistance and prompt a more restrictive regulatory environment. The sensitivities to risk and risk perception will likely vary among sectors but will be highest where the public is near the actual use of hydrogen, such as in aviation
129、and domestic heating, and less so in more industrial-type applications such as hydrogen storage.Safety represents a significant business risk to investors and developers. There have already been examples where incidents at hydrogen refuelling stations have halted hydrogen use in vehicles for signifi
130、cant periods. The industry has tried-and-tested methods for managing the safety of flammable gases that have been used for decades and these come with some very important, hard won, lessons. Firstly, safety must be based on an understanding of how the particular properties of hydrogen and hydrogen d
131、erivatives affect the potential hazards. Secondly, it is by far most effective (in terms of both safety and cost) if appropriate risk-reduction measures are added early in the design stage. In many instances, if addressed early, these measures can be incorporated at little (and at times no) extra co
132、st and can result in designs that are inherently safer. Finally, the design intent needs to be maintained through the full life cycle: safety measures should not degrade.Achieving all this requires an understanding of the key properties of hydrogen (and its derivatives) that affect the hazards. As h
133、ydrogen is very different to its deriva-tives, we need to consider those separately.Hydrogen hazards Hydrogen is a flammable non-toxic gas in ambient conditions. The effect of its properties on hazards and hazard management are probably best understood by reference to another flammable non-toxic gas
134、 that is widely accepted by society: natural gas (or its primary component, methane).So how do the properties of hydrogen change the potential hazards? For hydrogen, as with natural gas, ignition of accidental releases can result in fires and explosions. Research is very active in these areas and DN
135、V is engaged in large-scale experimental research at our Research & Testing site at Spadeadam, Cumbria, UK5. Although our understanding is still developing, we know enough to understand where to concentrate efforts with hydrogen. Table 1.1 summarizes the differ-ences between hydrogen and natural gas
136、/methane, in both gaseous and liquid form. Ignition of a flammable gas cloud does not always result in an explosion. Pressure is generated when either the gas cloud is confined within an enclosure, or the flame accelerates to high speed (or both). This could occur in a wide range of possible scenari
137、os, from low-pressure leaks in domestic properties, medium-pressure leaks in hydrogen production facilities or marine applications, to high-pressure leaks from storage facilities. The severity of an explosion will depend on many factors, but in general, the more reactive the fuel the worse the explo
138、sion. Reactivity in this sense relates to how fast a flame moves through a flammable cloud. At its worst, hydrogen flames can burn about an order of magnitude faster than natural gas and much faster than most commonly-used hydrocarbons. To add to this, when a flame travels very fast, going supersoni
139、c, the explosion can transition to a detonation. A detonation is a self-sustaining explosion process with a leading shock of 20 bar that compresses the gas to a point of autoignition. The subsequent combustion provides the energy to maintain the shockwave. Our previous experience of hydrogen safety
140、is an imperfect guide, at best, as to what might happen in the future. 22DNV Hydrogen forecast to 2050 DNVs HyStreet Facility sits at the end of the most complete onshore beach to burner demonstration of hydrogen use anywhere in the world. DNVs HyStreet provides the domestic end-use with 100% hydrog
141、en boilers providing heating, Northern Gas Networks H21 project demonstrates distribution in the below 7 barg regime and National Grids currently- under-construction FutureGrid facility will demonstrate transmission in large diameter, high pressure systems (up to 70 barg).23Methane moleculeHydrogen
142、moleculeTABLE 1.1Comparison of hydrogen and natural gas/methane properties and hazardous outcomeHydrogen propertyGaseous (compressed) hydrogenDensityRelease rateBeing one eighth of the density of methane, in equivalent conditions the volumetric flow rate of hydrogen is 2.8 times that of methane; con
143、versely, the mass flow of methane is 2.8 times that of hydrogen. Isolated hydrogen pressure systems will depressurise faster than for methane, but larger flammable clouds may result. The higher energy density per unit mass of hydrogen means the energy flow (like for like) is similar.Dispersion and g
144、as build-upHydrogen is more buoyant than methane and will have a strong tendency to move upwards, an aspect that can be used to minimise the potential for hazardous concentra-tions to develop.IgnitabilityIgnition energyThe minimum spark energy required to ignite a hydrogen-air mixture is less than a
145、 tenth of that required for methane or natural gas. However, this does not necessarily significantly increase the chance of ignition. Testing by DNV has shown that many potential ignition sources either ignite both hydrogen and natural gas mixtures or neither. Only a small proportion will ignite hyd
146、rogen but not natural gas. Additionally, equipment approved for use in hydrogen systems is readily available.FlammabilityConcentrations of hydrogen in air between 4% and 75% are flammable, which is a much wider range than for natural gas (5-15%). This will increase the likelihood of ignition.Combust
147、ionFireReleased compressed hydrogen gas will burn as a jet fire. Flame lengths correlate well the energy flow rate and as this is similar for hydrogen and methane, in like for like conditions, the jet fire hazards are similar.ExplosionThe explosion potential for hydrogen is much greater compared to
148、methane as at higher concentrations in air (20%) the speed of the flame is much more than for methane. In addition, hydrogen-air mixtures can undergo transition to detonation in realistic conditions, which would not occur with methane.Liquid hydrogen (additional to compressed gas hazards)Temperature
149、LiquefactionIn many ways, liquid hydrogen is a cryogenic liquid like liquefied natural gas (LNG). But due to the lower temperature, spillages can liquefy and solidify air from the atmosphere. The resulting mix of liquid hydrogen and liquid/solid air has exploded in small scale field experiments. Thi
150、s does not occur with LNG.DensityBuoyancy and dispersionAs liquid hydrogen vapourizes and mixes with air, it cools the air, increasing its density. Consequently, a hydrogen air cloud produced from a liquid hydrogen release will not be as strongly buoyant as in a gaseous hydrogen case. This also occu
151、rs with LNG but in this case the LNG-air mixture will be denser than air.Introduction 124DNV Hydrogen forecast to 2050 Detonability varies from fuel to fuel and detonations would not occur in any realistic situation with natural gas but are entirely credible for hydrogen. It is also notable that cur
152、rent explosion simulation methods used by industry are not able to model the transition to detonation, but only indicate when it might occur, though there is still considerable uncertainty in this area.This sounds like bad news for hydrogen facilities yet we know that these properties depend on the
153、concentration of the fuel in air. If concentrations are kept below about 15% hydrogen in air, it is no worse than methane at similar concentrations. The implication is that a key element of managing hydrogen safety is the control of gas dispersion and build-up to prevent the concentration of hydroge
154、n in air exceeding 15% as far as is practicable. This is a particular challenge where dispersal space is constrained for example onboard ships. Gas detection and rapid isolation of hydrogen inventories will be key measures. Consideration of ventilation rates and ventilation patterns is also critical
155、. Importantly, current simulation methods can model gas dispersion and build-up with reasonable confidence.In summary, although hydrogens high explosion reactivity is justifiably concerning, by being aware of this issue and designing to avoid high hydrogen concen- trations in the atmosphere, it is r
156、easonable to expect we can engineer facilities that are as safe or better than widely-accepted natural gas facilities. If based on a sound technical understanding and addressed in early design, the cost implications of such engineering solutions may not be significant. Hydrogen derivatives Arguably,
157、 the most important hydrogen derivative in relation to hazard management is ammonia. Ammonia is flammable but it is relatively difficult to ignite and as its burning velocity is well below that of methane, the explosion risk is small. The key hazard with ammonia is its toxicity; it is harmful to per
158、sonnel at concentrations well below its lower flammability limit of 15% in air. For example, UK HSE indicates a concentration of 0.36% could cause 1% fatalities given 30 minutes of exposure. Concentrations of 5.5% could cause 50% fatalities following 5 minutes of exposure.While ammonia has been wide
159、ly manufactured for over 100 years and is used in considerable amounts in the manufacture of fertilizers, its potential hazards need now to be understood in the context of new energy transition applications, as is the case with hydrogen. A very relevant example is the likely use of ammonia as a fuel
160、 in the maritime sector. An ammonia release within the hull of a ship has the potential to develop potentially fatal concentrations in confined spaces. Unlike hydrogen, this hazard cannot be reduced by measures that reduce the chance of ignition; ammonia has a direct effect if released and comes int
161、o contact with personnel. There is therefore no guarantee that the risks are lower than for hydrogen, even though it has no real explosion potential. Risk assessment would involve application of standard hazard management methods and would need to consider aspects such as the types of release that c
162、ould occur, the potential concentrations that could be generated, and the likelihood of personnel being exposed to harmful levels. Mitigation methods would include ammonia release detection and emergency shutdown of ammonia systems and ventilation, but could also require the availability of emergenc
163、y breather units and very well defined escape routes.Feasibility of ammonia for shipping has been described in the DNV white paper from 2020: Ammonia as a marine fuel. The additional DNV class notation “Gas fueled ammonia” was released in July 2021.25Introduction 1Liquid organic hydrogen carriers (L
164、OHCs) have the lowest safety risks as their properties are close to those of liquid hydrocarbons already handled in large quantities. Safety management should be straightforward, though it should be noted that hydrogen will be required during production and will be produced at the point of utilizati
165、on (as may also be the case for ammonia).A key element of managing hydrogen safety is the control of gas dispersion and build-up to prevent the concentration of hydrogen in air exceeding 15% as far as is practicable. 26DNV Hydrogen forecast to 2050 1.5 Hydrogen investments risks There is currently u
166、nprecedented interest in renewable and low-carbon hydrogen as an energy carrier, fuel, and clean molecule. However, there is still a long way to go: first for investment to flow beyond research and pilot projects, and second to realize many large-scale hydrogen projects and develop or retrofit infra
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