Insurance & Force Majeure for Hydrogen, RNG, BESS & CO₂ Onsite (Owner’s Guide)

By Green Gas Turbines Team · Published November 10, 2025 · 12 min read

Why This Matters Now

Adding new fuels and onsite storage—hydrogen (H₂), renewable natural gas (RNG), CO₂ capture/pipework, and battery energy storage systems (BESS)—changes a plant’s risk profile, permitting, and lender expectations. Insurance programs and force majeure (FM) language must evolve in parallel or you risk uncovered losses, delayed COD, or covenant breaches.

This is practical information for owners and developers. It is not legal advice—coordinate final language with counsel and your broker.

Coverage Matrix: What to Buy and Why

Line of Coverage	Hydrogen / RNG	BESS	CO₂ Capture & Transport	Key Pitfalls / Notes
Property (All-Risk)	Explosion, fire, leak damage to skids, yards	Thermal runaway, smoke/corrosive byproducts	Corrosion, compressor damage, pipe rupture	Verify named perils vs. all-risk, sublimits for contamination, smoke, and debris removal
Boiler & Machinery / Equipment Breakdown	Valve failure, controls, pressure events	Inverter/transformer failure, cooling system	CO₂ compressors, dehydration units	Include electrical arcing, electronic equipment, cyber-triggered physical damage endorsement
Business Interruption (BI) & DSU	Revenue loss post-incident	DSU for late COD if BESS delays energization	BI if CO₂ network outage halts ops	Align waiting period, extra expense, supply chain extensions; DSU contingent on peril being insured
General Liability (GL)	Third-party injury after leak/ignition	Public injury/property from fire event	Third-party harm from CO₂ release	Check pollution exclusions; add sudden & accidental pollution where applicable
Pollution / Environmental Liability	Cleanup after large H₂ release (and firefighting water)	Contaminated runoff post-incident	CO₂ plume, pipeline leak, subsurface migration	Ensure on- and off-site coverage; long-tail claims; regulators may require proof of financial responsibility
Builders Risk (Construction)	During install/retrofit	Factory acceptance → transit → site	Pipe stringing, hydrotests, tie-ins	Delay in Startup (DSU) and testing coverages—verify commissioning is included
Professional Liability (E&O)	Design errors in HAZOP, venting	EMS settings, interconnection design	Geotech model, pipeline routing	Claims-made form; ensure tail coverage for consultants
Cyber (Operational Tech)	DCS/PLC compromise leading to loss	EMS/inverter control compromise	CO₂ compressors & valves	Physical damage, business interruption from cyber, and OT incident response are often excluded unless endorsed

Exclusions & Sublimits to Challenge Early

Pollution limitation and gradual release exclusions—negotiate broadened environmental cover.
Defective design/workmanship carve-outs—push for ensuing loss coverage.
BESS-specific sublimits (thermal runaway, smoke corrosion, debris removal) and temperature/humidity conditions.
Hydrogen explosion definitions—confirm not treated as “boiler explosion only.”
CO₂ transport offsite—ensure contingent BI if the CO₂ hub or pipeline is down.

What Underwriters Need (and What Lowers Your Premium)

HAZID/HAZOP & SIL study extracts, with closure of action items.
Layout drawings: hazard zones (IEC/ATEX or NEC), vent stacks, egress, detector maps, and mechanical ventilation specs.
Protection systems: leak detection setpoints, ESD logic, BESS fire suppression and off-gas detection, water supply.
O&M and training: purge procedures, ignition control, hot work permits, emergency drills, impairment management.
Vendor warranties and performance guarantees; proof of spares and service SLAs.
Cyber controls: network segmentation for OT, MFA for remote access, incident playbooks.

Force Majeure: Make It Fit New-Fuel Reality

Force majeure should allocate uncontrollable risk fairly while avoiding moral hazard. Poorly drafted FM causes disputes during outages, supply shocks, and policy shifts.

Scope & Carve-Outs

Include catastrophic equipment failure not caused by negligence, regional CO₂/H₂ network outages, and hazard-induced evacuation orders.
Exclude the site’s own preventable failures (e.g., ignored maintenance advisories, known unsafe operation).
Address change-in-law separately from FM: use a regulatory change adjustment clause with cost-sharing instead of calling it FM.

Performance Relief, Not Free Passes

Relief applies only to the affected obligation (e.g., capacity delivery) and only for the duration of the event.
Require commercially reasonable efforts to mitigate: dispatch of hybrid resources, temporary derates, or alternative fuel modes.
Include notice timelines, documentation, and independent expert confirmation for prolonged events.

Sample Concept (excerpt)

If and to the extent Party A is prevented from performing an Affected Obligation by a Force Majeure Event
—including regional hydrogen or CO₂ network outage, emergency orders, or catastrophic equipment failure not
arising from Party A’s negligence—Party A shall be excused from such performance for the duration of the
event, provided it: (i) gives notice within 5 Business Days; (ii) uses commercially reasonable efforts to
mitigate (including temporary derates, alternative dispatch, or storage utilization); and (iii) resumes
performance promptly after cessation. Change in Law shall be addressed under the Regulatory Adjustment clause.

Risk Transfer Between Owner, EPC, OEM, and O&M

EPC: Builders Risk primary, OCIP/CCIP optional; EPC indemnity for construction-phase incidents; DSU tied to insured perils.
OEM: Performance guarantees (efficiency, emissions, ramp) with liquidated damages capped; carve-out for FM events.
O&M: Minimum staffing, training, and inspection cadence; indemnities for gross negligence; adherence to OEM bulletins a condition of cover.
Suppliers: H₂/RNG/CO₂ offtake/supply contracts with firm/interruptible tiers, nominated alternate delivery points, and FM symmetry (both sides).

Claims Playbooks (Be Ready Before You Need Them)

Hydrogen leak + ignition: secure area, notify AHJ, collect detector logs and ESD sequences, preserve evidence, immediate broker/insurer notice.
BESS thermal event: follow OEM fire response protocol (defensive posture), maintain exclusion zones, log temperatures/voltages, test for off-gas.
CO₂ pipeline outage: capture third-party outage notices, model curtailment impact for BI claim, document mitigation (alternative dispatch).

Premium Drivers & How to Lower Them

Design: compliant hazard zoning, vent stack heights, mechanical extraction interlocks, water supply for firefighting.
Protection: gas detection density, 2ooN voting, automatic ESD, BESS fire suppression & off-gas detection.
Operations: purge procedures, hot work permitting, quarterly drills, impairment management logs.
Data: share uptime, incident-free hours, maintenance compliance—prove you’re a good risk.

Lender & Offtaker Requirements

Evidence of placement (binders, certificates), insured values by asset, and loss payee endorsements.
Min coverage: Property + BI/DSU, GL, Pollution, Equipment Breakdown; cyber where SCADA/EMS critical.
Step-in rights and notice of cancellation to lenders/offtakers; acceptable deductibles and sublimits.

Procurement Roadmap

30% design package: share HAZOP, layouts, one-line diagrams, and protection narratives with the broker.
Underwriter site review: host a loss-prevention visit; agree on recommendations and closeout timelines.
Bind builders risk with DSU and testing/commissioning cover before major deliveries.
Transition to operational program at COD; ensure continuity of coverage and no gaps.
Annual refresh: update SOV, implement recommendations, and revisit FM and change-in-law clauses.

Frequently Asked Questions

Will my existing property policy automatically cover hydrogen and BESS?

Not reliably. New perils, sublimits, and exclusions are common. Seek explicit endorsements and confirm thermal runaway and explosion definitions.

Is a regional H₂ or CO₂ network outage a force majeure event?

It can be if explicitly included. Otherwise, outages may be treated as supplier failure, not FM. Add language and mitigation duties.

Do I need separate environmental liability?

Yes in most cases. GL often excludes pollution beyond sudden & accidental. Environmental policies address cleanup, third-party claims, and long-tail liabilities.

How do I keep premiums down?

Close loss-prevention recommendations, demonstrate strong procedures (purging, hot work), and share data on reliability. Consider higher deductibles with a funded reserve.

Bottom Line

New fuels and onsite storage unlock low-carbon, flexible power—but they reshape risk. Build the right insurance tower, prove controls to underwriters, and tighten force majeure so relief is fair, targeted, and conditioned on mitigation. Done well, you’ll protect cashflows, satisfy lenders, and keep projects bankable as the grid decarbonizes.