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Hydrogen Production Insurance Cover for Electrolyser Projects, Plant & Operators
Insurance for green hydrogen producers, electrolyser sites, developers and the contractors who build and maintain them, placed with energy and engineering markets that are prepared to underwrite a technology most standard insurers still avoid.
Hydrogen production insurance covers businesses that make hydrogen, usually by electrolysis, along with the plant, storage and income that come with it. The core covers are property damage for the electrolyser stacks, balance of plant, compression and storage, machinery breakdown for the electrical and mechanical equipment, and business interruption for lost revenue under an offtake or subsidy contract after an insured event. Producers also need public and employers' liability, environmental liability, and product liability for hydrogen supplied to customers. Before the site operates, the build itself needs construction all risks and delay in start-up cover. Insurers focus on the electrolyser technology and its track record, hazardous area design under DSEAR, the volume of hydrogen stored on site, separation distances and the operator's experience. Capacity for hydrogen is limited, so presentation matters as much as price.
Key facts at a glance
- Few insurers will lead. Hydrogen is still a new class for most property and liability markets, so a small number of specialist energy insurers set the terms.
- Technology track record drives the price. Underwriters want to know the electrolyser manufacturer, the stack type and how many operating hours it has elsewhere.
- Storage volume changes everything. Larger on-site inventories can bring a site under the COMAH regulations and tighten insurer requirements.
- Revenue cover must match the contracts. Business interruption should reflect your offtake agreement and any subsidy contract, not just a turnover figure.
- Construction comes first. Most projects need construction all risks and delay in start-up cover before a single kilogram is produced.
Who needs hydrogen production insurance?
We arrange cover for businesses at every stage of a hydrogen project, from early development through construction to commercial operation.
- Green hydrogen producers. Electrolyser sites powered by wind, solar or grid supply, from small industrial clusters to larger projects.
- Project developers and SPVs. Special purpose vehicles that need cover in place to satisfy lenders and investors.
- Industrial users producing their own hydrogen. Manufacturers adding on-site electrolysis to replace natural gas.
- Refuelling station operators. See hydrogen refuelling station insurance.
- Contractors building hydrogen plant. See hydrogen project construction insurance.
- Operations and maintenance providers. Engineering firms servicing electrolysers, compressors and storage.
What does hydrogen production insurance cover?
A hydrogen producer's programme usually combines property, engineering, income and liability covers, often from more than one insurer.
| Cover | What it protects | Watch out for |
|---|---|---|
| Property damage | Electrolyser stacks, balance of plant, compressors, storage vessels, buildings | Fire and explosion sub-limits and high deductibles |
| Machinery breakdown | Sudden electrical or mechanical failure of plant | Exclusions for gradual stack degradation and serial defects |
| Business interruption | Lost revenue after a property or breakdown loss | Indemnity periods shorter than the lead time for replacement stacks |
| Public and products liability | Injury or damage to third parties, including from hydrogen you supply | Limits below what offtakers and landlords require |
| Environmental liability | Pollution clean-up and environmental damage | Standard liability policies only cover sudden pollution |
| Employers' liability | Injuries to your staff | A legal requirement once you employ anyone |
| Construction and delay in start-up | The build, testing and commissioning, and lost revenue from a late start | Gaps at handover between the construction and operational policies |
Many of the same issues come up on battery projects, which we cover on our battery energy storage insurance page.
Why is hydrogen hard to insure?
Insurers price risk from loss history, and hydrogen production at commercial scale doesn't have much of one yet. That leaves underwriters relying on engineering detail rather than statistics.
Hydrogen is light, leaks easily and ignites across a wide range of concentrations. None of that makes a well-designed plant unsafe, but it means an underwriter will want to see how the design deals with it. They'll ask about leak detection, ventilation, ignition source control, pressure relief and how far the storage sits from site boundaries and other buildings.
The second issue is the equipment. Electrolyser technology is improving quickly, and newer stack designs may have limited operating hours. Insurers treat unproven technology cautiously, often with higher deductibles for breakdown or exclusions for defects that show up across several units. If your manufacturer's warranty is strong, it's worth showing it, because it shapes what the insurer has to pick up.
Electrolyser stacks lose efficiency over time. Most machinery policies exclude gradual deterioration, so a slow decline in output won't be covered. Make sure you understand where the warranty ends and the insurance starts.
Which regulations shape the cover?
The regulations a site falls under decide much of what insurers expect to see.
- DSEAR. The Dangerous Substances and Explosive Atmospheres Regulations 2002 require a risk assessment and hazardous area classification wherever hydrogen is present.
- COMAH. Sites storing larger quantities of hydrogen fall under the Control of Major Accident Hazards Regulations 2015, with lower and upper tier thresholds based on the amount held.
- Planning and hazardous substances consent. Storage above set quantities needs consent from the local planning authority.
- Pressure Systems Safety Regulations. Compressors, pipework and storage vessels need a written scheme of examination.
- Environmental permits. Larger producers may need a permit from the Environment Agency, Natural Resources Wales or SEPA.
Insurers will usually ask for your DSEAR assessment and hazardous area drawings early. Having them ready shortens the process a great deal.
What do insurers ask about a hydrogen project?
Expect detailed questions on the technology, the site, the contracts and the people.
- Electrolyser manufacturer, model, stack type and capacity in MW
- Maximum hydrogen stored on site and how it's stored
- Power source and grid connection arrangements
- Site layout, separation distances and neighbouring properties
- Leak detection, ventilation, fire protection and emergency shutdown
- Offtake agreements, any subsidy contract and your revenue model
- Operations and maintenance arrangements and spare parts held
- Your team's experience running process plant
How do you arrange cover for a new project?
- Start early. Talk to a broker while the design is still being finalised, as insurer comments can affect the layout.
- Gather the engineering pack. DSEAR assessment, hazardous area drawings, process flow and the manufacturer's specification.
- Map the contracts. Lenders, offtakers and landlords will each have insurance requirements.
- Cover the build. Construction all risks and delay in start-up during construction and commissioning.
- Plan the handover. Make sure the operational policy starts the moment the construction cover ends.
- Review after the first year. Operating data often helps bring the price down at renewal.
Frequently asked questions
A package of property, machinery breakdown, business interruption and liability covers for businesses that produce hydrogen, usually by electrolysis.
Rarely. Most mainstream insurers exclude hydrogen production, so cover usually comes from specialist energy and engineering markets.
Sudden breakdown can be covered, but gradual stack degradation is usually excluded and is normally a warranty matter.
It can, if the policy is written to reflect the revenue under your offtake and subsidy contracts. This needs setting up carefully.
Yes. Construction all risks and delay in start-up cover protect the build and the revenue you lose if the start date slips.
Sites in scope of COMAH face closer scrutiny and may need higher liability limits. Insurers will want to see your safety report and emergency plans.
Yes. Manufacturers adding small-scale electrolysis to their existing site can often extend their current programme with the right disclosures.
Yes. See our guide to hydrogen refuelling station insurance for the specific issues.
It depends on your contracts and the site. Many offtakers and landlords ask for £10 million or more.
Standard liability policies only cover sudden pollution incidents, so a separate environmental policy is often recommended.
Yes, though insurers will lean heavily on the experience of your team, contractors and technology supplier.
Allow several weeks for a new project, as insurers need the engineering information before they'll quote.
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Miller & Partner Limited (FRN 1029698) is an Appointed Representative of Gauntlet Risk Management Ltd (FRN 308081), which is authorised and regulated by the Financial Conduct Authority. Miller & Partner Limited is registered in England and Wales (company number 16206282) and trades from Vivian House, Roman Bridge Close, Mumbles, Swansea SA3 5BG. This page is general information, not a personal recommendation or an offer of cover. Cover is subject to insurer acceptance and the full terms, conditions and exclusions of the policy issued.
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