In-depth Q&A: How will the UK’s hydrogen strategy help achieve net-zero?

Specialists have cautioned that, with hydrogen in short supply in the coming years, the UK must prioritise it in “hard-to-electrify” sectors such as heavy industry as capacity expands.

The UKs brand-new, long-awaited hydrogen strategy provides more information on how the federal government will support the development of a domestic low-carbon hydrogen sector, which today is virtually non-existent.

Hydrogen will be “important” for achieving the UKs net-zero target and could meet up to a third of the countrys energy requirements by 2050, according to the government.

In this short article, Carbon Brief highlights essential points from the 121-page method and takes a look at some of the primary talking points around the UKs hydrogen strategies.

Firm choices around the extent of hydrogen usage in domestic heating and how to ensure it is produced in a low-carbon method have actually been postponed or put out to consultation for the time being.

Why does the UK require a hydrogen technique?

There were also over 100 referrals to hydrogen throughout the governments energy white paper, showing its possible use in many sectors. It likewise includes in the commercial and transport decarbonisation techniques released earlier this year.

Hydrogen is commonly viewed as a crucial element in plans to attain net-zero emissions and has been the topic of significant buzz, with numerous nations prioritising it in their post-Covid green healing plans.

However, similar to the majority of the governments net-zero strategy documents so far, the hydrogen plan has been delayed by months, resulting in uncertainty around the future of this recently established market.

Hydrogen demand (pink location) and percentage of final energy consumption in 2050 (%). The central variety is based on illustrative net-zero consistent circumstances in the sixth carbon spending plan impact evaluation and the complete range is based upon the entire range from hydrogen strategy analytical annex. Source: UK hydrogen strategy.

The file includes an exploration of how the UK will broaden production and develop a market for hydrogen based upon domestic supply chains. This contrasts with Germany, which has been looking to import hydrogen from abroad.

The strategy also required a ₤ 240m net-zero hydrogen fund, the development of a hydrogen neighbourhood heated with the gas by 2023, and increasing hydrogen mixing into gas networks to 20% to decrease dependence on natural gas.

Hydrogen growth for the next years is expected to begin gradually, with a government aspiration to “see 1GW production capability by 2025” set out in the method.

However, as the chart listed below shows, if the governments plans concern fruition it might then broaden substantially– comprising between 20-35% of the countrys total energy supply by 2050. This will need a major expansion of facilities and abilities in the UK.

The Climate Change Committee (CCC) has actually noted that, in order to strike the UKs carbon budgets and attain net-zero emissions, decisions in areas such as decarbonising heating and automobiles require to be made in the 2020s to enable time for infrastructure and lorry stock modifications.

The method does not increase this target, although it keeps in mind that the federal government is “conscious of a potential pipeline of over 15GW of projects”.

Companies such as Equinor are continuing with hydrogen advancements in the UK, but market figures have cautioned that the UK threats being left behind. Other European nations have pledged billions to support low-carbon hydrogen expansion.

Today we have actually published the UKs first Hydrogen Strategy! This is our plan to: kick-start a whole market release the market to cut costs increase domestic production unlock ₤ 4bn of personal capital assistance 9k jobs #BuildBackGreenerhttps:// t.co/ aHZTr5yYeR– Kwasi Kwarteng (@KwasiKwarteng) August 17, 2021.

The level of hydrogen use in 2050 envisaged by the strategy is rather greater than set out by the CCC in its most current recommendations, but covers a similar range to other studies.

Its adaptability indicates it can be utilized to tackle emissions in “hard-to-abate” sectors, such as heavy market, but it presently experiences high costs and low effectiveness..

In its brand-new technique, the UK federal government makes it clear that it sees low-carbon hydrogen as an essential part of its net-zero strategy, and says it wants the country to be a “international leader on hydrogen” by 2030.

A current All Party Parliamentary Group report on the function of hydrogen in powering market included a list of demands, stating that the government must “broaden beyond its existing commitments of 5GW production in the forthcoming hydrogen technique”. This call has actually been echoed by some industry groups.

Prior to the new technique, the prime ministers 10-point strategy in November 2020 consisted of strategies to produce five gigawatts (GW) of annual low-carbon hydrogen production capability in the UK by 2030. Currently, this capacity stands at virtually absolutely no.

Critics also characterise hydrogen– the majority of which is currently made from natural gas– as a way for fossil fuel companies to keep the status quo. (For all the benefits and disadvantages of hydrogen, see Carbon Briefs in-depth explainer.).

In some applications, hydrogen will complete with electrification and carbon capture and storage (CCS) as the very best ways of decarbonisation.

What range of low-carbon hydrogen will be prioritised?

This opposition came to a head when a recent study caused headlines specifying that blue hydrogen is “even worse for the environment than coal”.

For its part, the CCC has actually advised a “blue hydrogen bridge” as a beneficial tool for achieving net-zero. It says allowing some blue hydrogen will minimize emissions faster in the short-term by replacing more nonrenewable fuel sources with hydrogen when there is inadequate green hydrogen readily available..

Supporting a range of tasks will give the UK a “competitive advantage”, according to the federal government. Germany, by contrast, has said it will focus exclusively on green hydrogen.

The CCC has actually formerly specified that the government must “set out [a] vision for contributions of hydrogen production from different paths to 2035” in its hydrogen strategy.

It has actually also launched an accompanying report, prepared by consultancies E4Tech and Ludwig-Bölkow-Systemtechnik (LBST), which takes a look at maximum acceptable levels of emissions for low-carbon hydrogen production and the methodology for determining these emissions.

Contrast of price quotes across various innovation types at central fuel rates commissioning from 2020 to 2050, ₤/ MWh hydrogen. Source: Hydrogen Production Costs.
2021.

The document does not do that and rather says it will supply “more information on our production technique and twin track technique by early 2022”.

The strategy keeps in mind that, sometimes, hydrogen used electrolysers “could become cost-competitive with CCUS [carbon utilisation, storage and capture] -made it possible for methane reformation as early as 2025”..

The CCC has actually warned that policies must establish both green and blue choices, “instead of just whichever is least-cost”.

Quick (ideally) reviewing this blue hydrogen thing. Generally, the papers computations possibly represent a case where blue H ₂ is done actually severely & & with no reasonable policies. And then cherry-picked an environment metric to make it look as bad as possible. https://t.co/Jx0FdDfdx5— David Joffe (@david_joffe) August 13, 2021.

” If we wish to show, trial, start to commercialise and then present the usage of hydrogen in industry/air travel/freight or wherever, then we require enough hydrogen. We cant wait till the supply side deliberations are complete.”.

In May, S&P Global Platts reported that Rita Wadey– hydrogen economy deputy director at the Department for Business, Energy & & Industrial Strategy (BEIS)– said that, rather than “blue” or “green”, the UK would “think about carbon intensity as the main consider market advancement”.

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CO2 equivalent: Greenhouse gases can be revealed in terms of co2 equivalent, or CO2eq. For a given quantity, various greenhouse gases trap different amounts of heat in the environment, a quantity referred to as … Read More.

The figure below from the consultation, based on this analysis, reveals the impact of setting a limit of 15-20gCO2e per megajoule (MJ) of hydrogen (red bar). In this example, those production methods above the red line, including some for producing blue hydrogen, would be excluded.

Green hydrogen is used electrolysers powered by sustainable electrical power, while blue hydrogen is made utilizing gas, with the resulting emissions recorded and stored..

As it stands, blue hydrogen made using steam methane reformation (SMR) is the cheapest low-carbon hydrogen offered, according to federal government analysis included in the technique. (For more on the relative costs of different hydrogen ranges, see this Carbon Brief explainer.).

Nevertheless, there was substantial pushback on this conclusion, with other scientists– including CCC head of carbon spending plans, David Joffe– explaining that it depended on really high methane leakage and a short-term procedure of international warming potential that stressed the effect of methane emissions over CO2.

The chart below, from a file detailing hydrogen costs released along with the primary strategy, reveals the expected decreasing cost of electrolytic hydrogen gradually (green lines). (This includes hydrogen made using grid electricity, which is not technically green unless the grid is 100% eco-friendly.).

CO2 equivalent: Greenhouse gases can be revealed in terms of co2 equivalent, or CO2eq. For an offered quantity, different greenhouse gases trap various quantities of heat in the atmosphere, a quantity referred to as the global warming capacity. Co2 equivalent is a method of comparing emissions from all greenhouse gases, not simply co2.

Prof Robert Gross, director of the UK Energy Research Centre, informs Carbon Brief that, in his view, it is “probably a bit unhelpful to get too preoccupied with the green vs blue hydrogen dispute”. He states:.

The previous is basically zero-carbon, however the latter can still result in emissions due to methane leaks from gas infrastructure and the truth that carbon capture and storage (CCS) does not record 100% of emissions..

The new strategy mostly prevents using this colour-coding system, however it states the federal government has actually committed to a “twin track” method that will consist of the production of both ranges.

Environmental groups and lots of researchers are sceptical about blue hydrogen offered its associated emissions.

At the heart of numerous discussions about low-carbon hydrogen production is whether the hydrogen is “green” or “blue”.

In the example selected for the assessment, gas paths where CO2 capture rates are below around 85% were left out..

Jess Ralston, an analyst at thinktank the Energy and Climate Intelligence Unit (ECIU), stated in a declaration that the government should “live to the danger of gas market lobbying triggering it to commit too greatly to blue hydrogen and so keeping the country locked into fossil fuel-based innovation”.

The technique states that the proportion of hydrogen provided by particular technologies “depends upon a variety of presumptions, which can just be checked through the markets response to the policies set out in this technique and genuine, at-scale deployment of hydrogen”..

The federal government has actually released a consultation on low-carbon hydrogen standards to accompany the technique, with a promise to “finalise style aspects” of such standards by early 2022.

Glossary.

The CCC has formerly specified “suitable emissions decreases” for blue hydrogen compared to fossil gas as “a minimum of 95% CO2 capture, 85% lifecycle greenhouse gas cost savings”.

How will hydrogen be utilized in different sectors of the economy?

Although low-carbon hydrogen can be used to do everything from sustaining cars and trucks to heating houses, the truth is that it will likely be limited by the volume that can feasibly be produced.

It includes prepare for hydrogen heating trials and consultation on “hydrogen-ready” boilers by 2026.

Some applications, such as commercial heating, might be practically impossible without a supply of hydrogen, and lots of professionals have argued that these hold true where it must be prioritised, at least in the short-term.

The committee stresses that hydrogen use must be restricted to “areas less suited to electrification, especially shipping and parts of industry” and offering versatility to the power system.

The starting point for the range– 0TWh– suggests there is significant uncertainty compared to other sectors, and even the greatest estimate is only around a 10th of the energy currently used to heat UK homes.

One notable exemption is hydrogen for fuel-cell automobile. This follows the federal governments focus on electric vehicles, which numerous researchers view as more effective and cost-efficient innovation.

Call for evidence on “hydrogen-ready” industrial devices by the end of 2021. Require evidence on phaseout of carbon-intensive hydrogen production in market “within a year”. Phase 2 of the ₤ 315m Industrial Energy Transformation Fund.A ₤ 55 million Industrial Fuel Switching 2 competitors in 2021.

The government is more positive about using hydrogen in domestic heating. Its analysis suggests that up to 45TWh of low-carbon hydrogen could be put to this usage by 2035, as the chart listed below shows.

” As the technique admits, there will not be significant quantities of low-carbon hydrogen for a long time. [] we need to use it where there are couple of alternatives and not as a like-for-like replacement of gas,” Dr Jan Rosenow, director of European programs at the Regulatory Assistance Project, in a statement.

Protection of the report and government promotional materials stressed that the federal governments strategy would provide enough hydrogen to replace natural gas in around 3m houses each year.

Michael Liebrich of Liebreich Associates has actually arranged making use of low-carbon hydrogen into a “ladder”, with current applications– such as the chemicals market– offered top priority.

However, the method also includes the option of using hydrogen in sectors that might be much better served by electrification, especially domestic heating, where hydrogen needs to compete with electric heatpump..

Dedications made in the brand-new method consist of:.

Reacting to the report, energy researchers indicated the “small” volumes of hydrogen expected to be produced in the near future and advised the government to choose its top priorities thoroughly.

My lovelies, I just dropped Version 4 of the Clean Hydrogen Ladder! For anyone brand-new to all this, the ladder is my effort to put usage cases for tidy hydrogen into some sort of merit order, due to the fact that not all usage cases are equally likely to be successful. 1/10 pic.twitter.com/I8HpqQjlKS— Michael Liebreich (@MLiebreich) August 15, 2021.

Nevertheless, in the actual report, the government said that it expected “in general the demand for low carbon hydrogen for heating by 2030 to be fairly low (<< 1TWh)".. " Stronger signals of intent might steer personal and public investments into those areas which add most worth. The federal government has actually not plainly set out how to pick which sectors will gain from the initial organized 5GW of production and has instead mainly left this to be figured out through trials and pilots.". The brand-new technique is clear that market will be a "lead choice" for early hydrogen usage, beginning in the mid-2020s. It likewise says that it will "most likely" be very important for decarbonising transport-- particularly heavy products automobiles, shipping and aviation-- and stabilizing a more renewables-heavy grid. The CCC does not see comprehensive usage of hydrogen outside of these restricted cases by 2035, as the chart below programs. This is in line with the CCCs suggestion for its net-zero path, which sees low-carbon hydrogen scaling approximately 90TWh by 2035-- around a 3rd of the size of the existing power sector. Illustrative hydrogen demand in 2030 (blue) and 2035 (purple). Source: UK hydrogen technique. Juliet Phillips, senior policy consultant and UK hydrogen professional at thinktank E3G informs Carbon Brief the method had actually "exposed" the door for uses that "dont add the most value for the climate or economy". She includes:. Government analysis, consisted of in the strategy, recommends potential hydrogen need of up to 38 terawatt-hours (TWh) by 2030, not including blending it into the gas grid, and increasing to 55-165TWh by 2035. 4) On page 62 the hydrogen strategy mentions that the federal government expects << 1 TWh of energy for heating to come from hydrogen by 2030. 1 TWh is 0.2%. Gniewomir Flis, a project manager at Agora Energiewende, tells Carbon Brief that-- in his view-- mixing "has no future". He discusses:. Much will depend upon the development of feasibility studies in the coming years, and the federal governments approaching heat and buildings technique might also offer some clearness. " I would suggest to go with these no-regret choices for hydrogen demand [in market] that are already readily available ... those ought to be the focus.". In order to produce a market for hydrogen, the government says it will examine mixing up to 20% hydrogen into the gas network by late 2022 and goal to make a last decision in late 2023. How does the government plan to support the hydrogen industry? According to the governments news release, its favored model is "constructed on a similar property to the overseas wind contracts for distinction (CfDs)", which considerably cut expenses of new overseas wind farms. As it stands, low-carbon hydrogen remains costly compared to fossil fuel options, there is unpredictability about the level of future demand and high risks for business intending to get in the sector. Sharelines from this story. Hydrogen need (pink location) and percentage of last energy intake in 2050 (%). My lovelies, I just dropped Version 4 of the Clean Hydrogen Ladder! Call for evidence on phaseout of carbon-intensive hydrogen production in industry "within a year"." As the strategy confesses, there will not be significant amounts of low-carbon hydrogen for some time. 4) On page 62 the hydrogen strategy specifies that the federal government expects << 1 TWh of energy for heating to come from hydrogen by 2030. The brand-new hydrogen strategy validates that this organization model will be finalised in 2022, allowing the very first agreements to be designated from the start of 2023. This is pending another consultation, which has been launched alongside the main technique. These agreements are developed to conquer the cost space in between the favored technology and fossil fuels. Hydrogen manufacturers would be offered a payment that bridges this gap. Now that its technique has been released, the federal government states it will collect evidence from consultations on its low-carbon hydrogen standard, net-zero hydrogen fund and business model:. The 10-point plan consisted of a promise to develop a hydrogen business design to motivate private financial investment and a revenue mechanism to supply financing for business model. " This will provide us a much better understanding of the mix of production innovations, how we will fulfill a ramp-up in demand, and the role that new technologies might play in attaining the levels of production necessary to satisfy our future [sixth carbon budget plan] and net-zero dedications.". Nevertheless, Anne-Marie Trevelyan-- minister for energy, clean development and environment change at BEIS-- informed the Times that the expense to provide long-lasting security to the industry would be "very little" for specific families. Much of the resulting press protection of the hydrogen method, from the Financial Times to the Daily Telegraph, concentrated on the strategy for a hydrogen industry "subsidised by taxpayers", as the cash would come from either greater bills or public funds.