14.1 Introduction
Readers who enjoyed science lessons at school may recall an experiment in which hydrogen is made by applying a direct current to water and then seeing bubbles of hydrogen and oxygen.Footnote 1 This process – called ‘electrolysis’ – uses electricity to split water into its two component molecules, hydrogen and oxygen; hydrogen gas can then be stored and used like a battery to generate electricity when required.Footnote 2 This reaction takes place inside an electrolyser and is the process by which low-carbon, renewable-energy-derived ‘green’ hydrogen is made.Footnote 3 However, before the science classroom result can be replicated on an industrial scale, concerns around safety, purity of product and reliability of technology must be addressed.Footnote 4 Because of this, there are strict safety design standards for electrolysers, which must conform to the standards required by the country of installation.Footnote 5 Developers of electrolytic hydrogen projects must also obtain the necessary resource consents and permits.
This chapter discusses the permitting regime for electrolysers in New Zealand. Two types are currently used on a large scale in New Zealand: alkaline (AEL) and polymer electrolyte membrane (PEM) electrolysers.Footnote 6 Both PEM and AEL electrolysers use an electric current to split water molecules into hydrogen and oxygen, but they use different types of electrolyte solution and different materials for the membrane and electrodes.Footnote 7 The type of electrolyser used will depend on the project’s needs, although PEM electrolysers are often preferred, because they offer greater flexibility.Footnote 8 Irrespective of what type of electrolyser is chosen, resource consent will be needed before the project can proceed. This chapter asks what permits will be needed and what processes must be followed in order for an electrolytic hydrogen project to receive resource consent.
New Zealand may not initially seem the most ‘obvious’ choice for examining the way in which electrolytic hydrogen projects are permitted. After all, many states are currently considering how low-carbon, renewable-energy-derived ‘green’ hydrogen can support decarbonisation goals, and are investigating what may be the most appropriate applications and transition pathways for hydrogen within their energy systems and economies, and a number of national hydrogen strategies and polices have been published recently.Footnote 9 New Zealand is no exception, having published its Vision for Hydrogen in New Zealand Green Paper in September 2019.Footnote 10 However, unlike those states which are considering a range of hydrogen options,Footnote 11 New Zealand’s focus is firmly on green hydrogen,Footnote 12 which means the resource consent process for electrolysers is critical to New Zealand’s hydrogen ambitions.Footnote 13 The Vision indicated the government’s intention to develop a hydrogen roadmap;Footnote 14 an Interim Hydrogen Roadmap was released in August 2023, with a final Hydrogen Roadmap anticipated by the end of 2024.Footnote 15 These policy documents signal New Zealand’s desire to position itself as a hydrogen exporter (and to contribute to the decarbonisation of other energy markets, particularly in Asia),Footnote 16 with the domestic hydrogen opportunity largely supplementing existing renewable energy activities.Footnote 17 Even so, developments in New Zealand are still at an early stage and the green hydrogen market in New Zealand is a ‘nascent industry’.Footnote 18 Indeed, the existing hydrogen market in New Zealand is dominated by major industrial manufacturers (methanol production, ammonia and urea production, refining and steel production) and the majority of hydrogen is produced in-house from domestic natural gas via steam methane reforming facilities, with a smaller proportion of electrolytic hydrogen for steel production.Footnote 19
Because electrolysers are the hydrogen production devices with the most potential to support environmentally friendly, green hydrogen developments, consideration of the requirements for obtaining resource consent for an electrolytic hydrogen project offers a useful entry point for consideration of the way that New Zealand’s regulatory framework for hydrogen supports its green hydrogen Vision. More immediately, the chapter makes a practical contribution to the hydrogen transition in New Zealand by setting out the current process for obtaining resource consent for electrolytic hydrogen projects.
Although there is no specific, dedicated regime for permitting electrolysers in New Zealand, a range of requirements must be met, particularly in relation to health and safety. Some of these are set out in legislation, while others, particularly technical specifications, are contained in standards.Footnote 20 Because compliance with these requirements will need to be demonstrated through the resource consent application process, this chapter focuses on that process, and notes these requirements in relation to it.
For context, the chapter begins with a brief overview of New Zealand’s hydrogen regulatory environment (Section 14.2). It then considers New Zealand’s resource management framework (Section 14.3), before discussing the specific requirements for resource consent for electrolytic hydrogen projects, with reference to a successful recent resource consent application (Section 14.3.2). The chapter then notes concerns about the efficacy of the resource consent process for supporting hydrogen developments, and suggested reforms (Section 14.4), before offering concluding remarks.
14.2 Regulating Hydrogen in New Zealand
Despite current and planned hydrogen developments, there is no dedicated, hydrogen-specific regulatory framework for the production, transportation and storage of hydrogen in New Zealand.Footnote 21 Instead, a range of legislation, regulations and industry standards may be applicable.Footnote 22 For example, the Gas Act 1992 provides the legislative framework for the regulation, supply and use of gas in New Zealand, including hydrogen, and the protection of public health and safety and property.Footnote 23 Equally significant for electrolytic hydrogen projects is the Electricity Act 1992, which regulates the supply and use of electricity, and sets out safety requirements to protect electrical workers and the public.Footnote 24 The Health and Safety at Work Act 2015 sets out principles, duties and rights in relation to workplace health and safety, and covers hazardous activities, workplaces and facilities, while the Hazardous Substances and New Organisms Act 1996 covers storage and use of gas containers.Footnote 25 The Land Transport Act 1998 governs technical aspects of land transport and vehicle safety and provides for the safe transport of dangerous goods.Footnote 26
In the Interim Roadmap the government committed to developing regulations to enable safe operation of hydrogen projects, and is focused on ‘making changes needed to enable safe use of near-term activities such as production, storage and distribution, and applications like heavy road transport’.Footnote 27 To date, regulatory reform has been largely focused on amending provisions relating to natural gas to include coverage of hydrogen, and on ensuring adequacy of health and safety regulations, including hydrogen safety standards.Footnote 28 Recent consideration of how well New Zealand’s current regulations,Footnote 29 standardsFootnote 30 and health and safety requirements will cover anticipated hydrogen developments has identified the need for regulatory reform.Footnote 31
A recent review concluded that hydrogen can generally be accommodated within the purpose of existing legislation, but the fit is imperfect and two significant issues arise: firstly, ‘the novel uses and forms of hydrogen [cause] potential misalignment across legislation’;Footnote 32 and, secondly, some legislative provisions are ‘too prescriptive and therefore [exclude] hydrogen and its requirements’.Footnote 33 The review concluded that ‘all proposed [hydrogen] activities were covered by legislative purpose … [but] the existing regulatory frameworks fell short on fundamental criteria’.Footnote 34 Nevertheless, although ‘none of [New Zealand’s] regulatory frameworks are strictly “fit for purpose” to facilitate the future hydrogen economy … many of the issues that need to be resolved are not urgent or are relatively minor changes’.Footnote 35
The review identified forty-four Acts and ninety-three Regulations and Rules that are potentially relevant to hydrogen.Footnote 36 There is not scope in this chapter to discuss all of these regulations in detail, but an application for resource consent for an electrolytic hydrogen project will, in particular, need to demonstrate how the project will comply with requirements concerning safety, so these regulations are briefly addressed in the context of resource consent applications.
14.3 Obtaining Resource Consent for Electrolytic Hydrogen Projects
Before constructing and operating an electrolytic hydrogen project in New Zealand, resource consent will need to be obtained. Depending on the size, location and type of the intended development, a hydrogen project may require a number of resource consents. In addition to obtaining consents for hydrogen projects, developers may also need to obtain them for the renewable energy projects that provide electricity for the electrolysis that converts water to hydrogen: for example, electricity generated from wind farms.Footnote 37 These consents are issued under the Resource Management Act 1991, which is the main piece of legislation that regulates the environmental impacts of activities in New Zealand.Footnote 38 Thus, consent applications are primarily concerned with the way the environment may be affected and the way resources, such as water, will be used in the hydrogen development, rather than with the technical specifications of the electrolyser. That said, a range of regulations apply to the safe operation of electrical equipment, especially where this will be occurring in a potentially hazardous environment, so technical specifications and details of how the project will comply with these requirements will be included with the application. Building consents may also be needed to construct the hydrogen facility.
14.3.1 Resource Management Act 1991
Since its enactment, the Resource Management Act 1991 (RMA) has played a central role in regulating the development of renewable energy generation in New Zealand.Footnote 39 Despite this, the RMA has been criticised for failing to achieve its purpose, for inadequately protecting the environment and for not enabling development.Footnote 40 At the time of writing, new legislation had recently been enacted that was intended to replace the RMA over the next decade.Footnote 41 This would have produced a significantly different environmental management regime; however, following a change in government in late 2023, this legislation was repealed, with further reform expected in future.Footnote 42
The RMA’s purpose is to ensure that natural and physical resources are managed sustainably.Footnote 43 The RMA does this in a decentralised way by requiring regional and district councils to manage natural and physical resources in their area.Footnote 44 These councils must prepare district or regional plans, which provide a framework for development in their region or district.Footnote 45 This means that, although the RMA provides the consenting framework, the consents are needed because of regional plans as well as national regulations. Additionally, the local plans and policies governing resource management can differ between districts and regions, and there may also be differences within a district, city or region. Complicating this interplay, the effects that certain activities may have on resources are managed through a hierarchy of planning documents developed under the RMA, which contain policies, standards and rules that prescribe whether an activity is permitted, or requires resource consent, or if it is prohibited.Footnote 46 These include National Environment Standards and National Policy Statements and Regional Policy Statements, as well as plans and strategies under other legislation.Footnote 47 Sometimes these National Environment Standards will override local rules to ensure a consistent set of rules across all councils. Thus, national direction balances localised decision-making; however, the different priorities of these policies may have to be reconciled.Footnote 48 This has particular relevance for hydrogen developments because, on the one hand, national policy is being developed to support green hydrogen but, on the other, the regulations that will determine whether a project is consented to are much more localised. This may not be particularly problematic where a region is intended to be a ‘hydrogen hub’, but it does mean developers who are considering locating projects in different regions may be subject to different requirements in each region. For this reason, it has been suggested that a National Environment Standard for hydrogen would be helpful.Footnote 49
The RMA classifies activities into six primary categories: ‘permitted’, ‘controlled’, ‘restricted’, ‘discretionary’, ‘discretionary, non-complying’ and ‘prohibited’.Footnote 50 These categories determine whether a resource consent is required for particular activities. Rules in regional and district plans determine within which category an activity falls. The RMA prescribes the type of consent required and the process for obtaining a resource consent.Footnote 51 Types of resource consents include land use consents,Footnote 52 subdivision consents,Footnote 53 coastal permits,Footnote 54 water permitsFootnote 55 and discharge permits.Footnote 56 For an electrolytic hydrogen project, the consent application would be expected to include land use consents, water permits and discharge permits. The duration of land use consents is unlimited, unless specified in the consent; the duration of other types of consent is a maximum of thirty-five years or the time specified in the consent.Footnote 57 The holder of a resource consent must comply with its conditions, which may include monitoring and reporting requirements.Footnote 58 Consents may be transferred.Footnote 59
Because these consents relate to resource use, they do not deal with health and safety issues. These issues are instead governed by legislation: for example, the Electricity (Safety) Regulations 2010 provide for the management of electrical hazards by setting out requirements covering electrical safety, design, construction, installation, prevention of damage and the supply and use of electricity (including generation connected to electrolysers). Electrolysers will need to be certified as compliant with these Regulations and certifications must be achieved prior to the project becoming operational.Footnote 60 Similarly, the Health and Safety at Work (Hazardous Substances) Regulations 2017 provide for the management of hazardous substances by setting our requirements for labelling and signage, storage, separation distances, control of substances and emergency preparation.Footnote 61 Compliance with these Regulations will be demonstrated by a Location Compliance Certificate, which must be provided by an approved New Zealand certifier.Footnote 62 And the Pressure Equipment, Cranes and Passenger Ropeways Regulations 1999 provide for the management of pressure equipment, and prescribe requirements for design, verification, manufacturing, inspection, certification, operation and maintenance. Again, compliance with these Regulations will be demonstrated by certification by an approved New Zealand certifier.Footnote 63 Even though these safety requirements are prescribed by legislation, they also arise within the scope of the consent process because a risk management process and assessment will be prepared and included with the documents in the resource consent application to fulfil the information requirements under the relevant district plan.
An application for resource consent can be made to the district council or regional council that administers the district or regional plan under which the resource consent is required.Footnote 64 The application must be accompanied by an assessment of environmental effects.Footnote 65 The council will determine whether the application will be publicly notified.Footnote 66 If the application is not publicly notified, it will take up to 20 working days; if the application is publicly notified, submissions can be lodged and a hearing held, which can take up to 130 working days.Footnote 67 The council will issue a decision and the applicant and any submitters have a right of appeal to the Environment Court against that decision.Footnote 68
When determining resource consent applications, consenting authorities must consider the environmental impacts of allowing the activity, as well as any mitigating or offsetting proposals.Footnote 69 Public support for, and opposition to, the application must also be considered. The RMA encourages public participation; this means that some projects have faced significant opposition and applicants can become involved in protracted hearing and appeal processes.Footnote 70 For hydrogen projects, safety can be a particular concern; even where an applicant can demonstrate compliance with health and safety regulations, safety concerns may still engender public opposition to a hydrogen project.
The RMA also requires consideration of the values and interests of the Indigenous Māori people when determining applications for resource consents.Footnote 71 Court assessments of the adverse effects the proposed land use would have on Māori values, interests and their relationship to their ancestral lands has resulted in the refusal of consent for some renewable energy projects.Footnote 72 Māori opposition could have particular significance for hydrogen projects for two reasons. Firstly, many Māori tribes own, or have rights over, land adjacent to renewable energy sources or facilities. This may enable them to locate hydrogen production facilities on their own land, but they may also be opposed to these developments.Footnote 73 Secondly, freshwater has enormous significance to Māori, and their views on using it for electrolysis will need to be considered: analogously, in relation to hydro-electric power, tribal spokespersons have noted that ‘the water itself might be renewable, the rivers themselves are not’.Footnote 74 Māori opposition to an electrolytic hydrogen project could result from opposition to the renewable energy activities that power the electrolysis, rather than opposition to the hydrogen project per se, as was seen in the following recent example of an opposed application for resource consent. This example also demonstrates the resource consents that may be needed for electrolytic hydrogen projects.
14.3.2 Example: Hiringia Energy Limited and Ballance Agri-Nutrients Limited Resource Consent Application
Hiringa Energy Limited and Ballance Agri-Nutrients Limited entered into a Joint Development Agreement to build facilities that use wind-powered electricity generation to produce green hydrogen and baseload renewable electricity for the Ballance Plant, which uses natural gas to produce ammonia and urea.Footnote 75 Hiringia and Ballance applied to establish a renewable wind energy facility and associated hydrogen production, storage, offtake and refuelling infrastructure.Footnote 76 Seven resource consents had previously been issued by the Taranaki Regional Council for the Ballance Plant, which covered the taking of water for the project as well as discharges to air, land and water.Footnote 77 Although specific consents were not sought for the electrolyser, it was described in the application along with the green hydrogen activities the project will support and that way received scrutiny and approval, as part of the resource consent application.
The application demonstrates the significance of regional plans to resource consent applications in New Zealand. Although the RMA provides the consenting framework, the consents are needed because of regional plans as well as national regulations: the applicants sought consents under the South Taranaki District Plan (2015) and the Regional Fresh Water Plan for Taranaki, as well as the Resource Management (National Environmental Standards for Freshwater) Regulations 2020 and the Resource Management (National Environmental Standard for Assessing and Managing Contaminants in Soil to Protect Human Health) Regulations 2011.Footnote 78
The application was made under the COVID-19 Recovery (Fast-Track Consenting) Act 2020. This fast-track consenting approach has been retained beyond the COVID pandemic, and is now discussed.
14.4 Resource Management Act Reform
During the COVID-19 pandemic, a temporary fast-track consenting process was introduced.Footnote 79 Following this experience, a more permanent fast-track process was introduced in the Natural and Built Environment Act 2023; although this Act has now been repealed,Footnote 80 the fast-track process has been retained.Footnote 81 The process has two application steps: firstly, a referral application, which involves applying to use fast-track consenting; and, secondly, a substantive application, which involves applying for resource consent or lodging a notice of requirement.Footnote 82 If the fast-track application is unsuccessful, the application may still proceed on the standard track. For successful fast-track applications, this is expected to reduce consenting time by an average of eighteen months per project.Footnote 83
Does this support New Zealand’s hydrogen aspirations? In principle, the fast-track process should reduce the problems of time and cost. However, even if the consent is granted promptly, it can still be challenged. As noted, both general public and Indigenous opposition can be a significant hurdle for hydrogen projects. For example, in the Hiringia and Ballance application referred to above, the fast-tracked consent was granted despite objections from environmental groups and some local Māori (who objected to the proposed location of the wind turbines), who then appealed against the granting of the project’s resource consent.Footnote 84 In the High Court decision to dismiss the appeal, the Court held that the expert panel had ‘properly considered’ the application.Footnote 85 That decision was also appealed; the appeal was dismissed in December 2023.Footnote 86 Despite the applicant’s eventual success in court, the litigation highlights the delays that hydrogen projects can face if a project is not supported, and – because the resource consent application in that example was a fast-track application – also highlights the limitation of the fast-track consenting process to achieve the desired efficiencies in energy development. The appeal against the consent being granted has eroded the temporal gains that the fast-track consent process offers, which suggests that consenting process abridgements that are designed to deliver procedural efficiencies to resolve substantive concerns over resource development may only be effective where a renewable energy project is supported (or at least not significantly opposed) by the community. This is not something that can necessarily be addressed via refinements to the consenting process; consultation and engagement with stakeholders may prove more effective. This may be a particular consideration for hydrogen projects, which can face significant public opposition.Footnote 87
Of course, public opposition is not the only reason for delays in the consenting process. Obtaining consent for hydrogen developments may be particularly challenging because of regulatory uncertainty. It has been observed that New Zealand’s ‘[r]egulation relating to use of green hydrogen in infrastructure and resource management is the [regulatory] area posing the most uncertainty’ for hydrogen developers.Footnote 88 A consequence of the many considerations that consenting authorities must take into account has been that applications take time to process – and projects can be held up, with the delay sometimes being significant, until consent is obtained.Footnote 89 Uncertainty over the way the existing regulatory frameworks permit and constrain hydrogen activities exacerbates this situation; consequently, ‘hydrogen projects meeting a specific set of criteria of being nationally significant may experience streamlined risk assessment and resource consent processes’, whereas ‘it may be more difficult for local authorities to consider the unique risks of hydrogen and it may be better for a central body, such as the [Environmental Protection Authority], to manage the consenting process … [which] would reduce the burden on Councils in understanding the unique risks associated with hydrogen’.Footnote 90
This need for a consistent, national body-led approach was also picked up in the submissions received following the release of the Vision Green Paper, with several supporters of hydrogen noting ‘the lack of a clear regulatory framework for hydrogen’ and raising ‘issues about uncertainty with regulatory coverage, regulatory boundaries, consenting under the RMA and what standards are relevant’.Footnote 91 A National Environment Standard covering hydrogen was recommended by some submitters, who suggested that this could ensure consistent rules and guidelines for hydrogen use across different territorial authorities.Footnote 92
The suggestion of a National Environment Standard for hydrogen, and for a national-level agency to consider hydrogen resource consent applications, highlights the limitations of the localised decision-making process developed under the RMA to support New Zealand’s national hydrogen Vision – and the limitations of improvements, such as the streamlined, fast-tracked consenting approach, to address delays in processing consent applications which are rooted in uncertainty over the application of current regulations to hydrogen activities. The suggestion is a sensible one and, along with updates to regulatory coverage to ensure hydrogen activities are within the scope of current legislation, regulations and standards, may provide sufficient regulatory changes to support the hydrogen Vision. However, without community support, hydrogen may not achieve its potential either. Any changes to the consent process must still provide for community engagement and participation. Regulatory certainty must be achieved through consenting processes that support national hydrogen policies while taking account of community concerns.
14.5 Concluding Remarks
This chapter asked the question ‘which permits or resource consents are needed in order to build and operate an electrolyser in New Zealand?’ and identified resource consents that may be needed and the process for applying for these. Implicit in that discussion is the broader question of whether ‘New Zealand’s resource consenting regime supports its hydrogen Vision?’ Although legislation is in place that facilitates hydrogen development, there is still uncertainty and complexity. For resource consents, uncertainty can cause delays, which may frustrate the very progress the Vision is promoting. This is something that should be considered as further reform of New Zealand’s resource management framework occurs.
Ultimately, New Zealand is interested in developing its hydrogen capacity and has the potential to do this successfully. But, to achieve this, a supportive regulatory regime that facilitates the desired hydrogen developments will be needed. While, in theory, hydrogen appears to be within the scope of existing regulations, a hydrogen-specific framework would help tremendously with removing uncertainties and the delays these can cause.