Recent global events have driven sharp swings in gas prices. For operators of anaerobic digestion plants and other assets across the renewable energy industry, that volatility does more than influence daily trading. It changes the very basis on which your business interruption insurance (BI) exposure should be calculated. For an AD plant, fluctuations affect biomethane and power revenues considered by anaerobic digestion insurance underwriters. They also materially alter the insurance risks you face. If your BI assumptions still reflect historic price levels or fixed revenue estimates, you could be underinsured at the worst possible time.
Why gas price volatility matters to your BI cover
Your BI sum insured should reflect the true financial impact of lost production. For many AD plants, revenue streams are linked directly or indirectly to gas and power prices:
- Biomethane sales
- Power export via combined heat and power (CHP)
- Renewable incentives
- Gate fees.
When gas prices spike, the replacement value of lost output and the profit you would've earned rise. It's vital your business interruption insurance is sized to cover lost revenue rather than relying on historic averages. That means considering whether your cover should be:
- On a gross revenue basis
- A gross profit basis
- Calculated to reflect actual profit and total revenue exposures.
Equally, sudden price falls can change feedstock economics and increase the likelihood of operational disruptions. This alters recovery timelines and the scale of indemnity needed. Static BI figures can therefore misrepresent potential loss. Work with underwriters to ensure policies provide cover for price-linked revenue movements and the full commercial impact of production shortfalls.
The risks of not reviewing your BI cover
Three immediate risks if you don’t review BI assumptions now
- Underinsurance: If the insured indemnity period or revenue estimate is too low or doesn't match the real project value or total insured value, a claim may not pay for the full income loss. Using old assumptions or choosing a minimum indemnity period that's too short can leave large gaps in cover. This is especially true when policies are based on gross revenue or gross profit and do not reflect actual earnings.
- Coverage gaps: Insurance policies based on old assumptions can leave big gaps. They may leave out central overhead costs or not cover some causes of loss. For example, they might not cover losses tied to market prices, delays finding new buyers, equipment breakdown, or physical damage. They can also miss key environmental risks and liabilities. For instance, a policy might ignore past pollution or possible harm to wildlife. This can leave the plant facing legal claims and costs that insurance will not pay.
- Weaker negotiating position: In a tight market, showing current, clear business interruption numbers proves your real exposure. This helps you get cover for lost income, contingent business interruption, and for mechanical breakdown or physical damage. If your data is old, you cannot justify the right indemnity period. You also cannot defend your total insured value or project value. That weakens your position with underwriters and can lead to worse insurance terms.
Why now is the right time: A competitive AD insurance market
The AD insurance market is currently competitive across the renewable energy industry. There is available capacity for anaerobic digestion insurance, and over the past 12 months several insurers have entered the market, providing a broader range of options. The insurance industry is seeking high‑quality, well‑documented risks and we encourage our clients to engage insurers early. That gives you leverage to secure broader cover or improved rates, but only if your submissions are precise and current. Updating your BI assumptions now would allow you to take advantage of favourable conditions and avoid rushed renewals.
What to review and prepare
Make your next BI review systematic and evidence-based. Focus on clear, verifiable inputs that underwriters expect. Assemble them into a single submission that supports both pricing and the minimum indemnity period requested. Treat this as part of your comprehensive risk assessment for the plant.
- Revenue and indemnity basis - Update revenue assumptions to reflect current gas and power price scenarios, including sensitivities for high and low-price outcomes. For each scenario, provide calculations on a gross profit basis, gross revenue basis, and expected actual profit. This way, underwriters can assess whether you should exclude central overheads or apply internal recharges. Clearly state the minimum indemnity period you require and the rationale. This must include any project start up or commissioning profiles that affect early income.
- Fixed and variable costs - Itemise monthly fixed costs (rent, lease payments, loan servicing, management salaries) separately from variable costs and gate fees. Provide detailed gate fees schedules and any guaranteed minimum income levels or fluctuations linked to feedstock. This could include food waste and organic waste under your sustainable waste management arrangements.
- Production and operations evidence - Provide recent production and output records, CHP performance data, biomethane injection volumes and any fuel supply records (including biomass boiler usage where applicable). Include time-stamped logs showing performance during normal and stressed conditions.
- Contracts and commercial protections - Share offtake agreements, indexation clauses, any price-protection or hedging arrangements. As well as evidence of biogas insurance or other relevant insurance coverage that supports recovery of lost revenue. Flag contingent liabilities or internal recharges between group entities and state whether these should be included or to exclude central overheads from the claimable loss.
- Cost-control and spare parts - Detail spare parts strategies, on-site inventories and supplier lead times that shorten repair periods. Demonstrate planned responses to mechanical breakdown and include maintenance contracts. Also examine the mean time to repair, and spare parts suppliers to justify shorter time-to-recover assumptions.
- Historical and environmental records - Document historic outage causes, historical pollution issues, remediation records, and any enforcement action or permits from the environment agency. Provide surveys or records addressing biodiversity damage or other environmental liability concerns. This way, underwriters can price environmental risks or material damage exposure appropriately.
- Material damage and physical risk data - Provide recent inspection reports, loss history, and surveys covering plant layout, structural protections, and vulnerability to potential hazards. Include examples of past material damage losses and the recovery pathway used.
- Contingency and mitigation plans - Include contingency plans that reduce exposure such as alternative offtake options, spare parts strategies, mutual aid agreements, and temporary bypass arrangements that shorten downtime. Show how your plans tie into sustainable waste management routes to reduce income loss.
- Start-up and project-specific information - For recent builds or expansions, provide project start up timelines, commissioning test logs, and the declared project value / total insured value. Underwriters can then properly assess exposure during early-life volatility.
Assemble all items into a single pack with summary tables and clear labels so underwriters can validate sums on a gross profit basis. They'll reconcile to total revenue and confirm the cover required to cover lost revenue under a BI claim.
Tailored market options to consider
A modern, market-aligned approach to BI for AD operators should combine traditional indemnity products with targeted endorsements and cross-technology packages. This reflects real-world revenue drivers and the wider renewable energy industry exposure. Practical options to discuss with underwriters include:
- Agreed or index-linked sums - Use index-linked sums tied to recognised gas and power indices or to a defined basket (biomethane, power, gate fees). This way, the sum insured keeps pace with market swings and the plant’s project value or total insured value.
- Parametric triggers for price and production - Add parametric elements that automatically pay when a gas or power price falls below (or rises above) a pre-agreed threshold. Or, when production volume drops under a set percentage. This is useful where revenue is tightly linked to market rates and faster settlement is required.
- Contingent BI and supplier/customer extensions - Include contingent BI wording to provide cover for shutdowns at key offtakers, feedstock suppliers or contractors. Such failure would cause material disruption to your anaerobic digestion facilities.
- Endorsements for revenue-linked losses - Add clear wording that recognises revenue-linked losses from biomethane sales, CHP exports and indexed gate fees. Specify whether assessment is on a gross revenue basis, gross profit basis or actual profit. This ensures that the insurance policies accurately cover lost revenue.
- Combined or multi-crop renewable packages - For sites or portfolios that include solar panels, wind turbines, hydroelectric plants or a biomass boiler, consider a bundled solar package or multi-technology policy. These can harmonises insurance coverage maintenance exclusions and a single total insured value to avoid gaps between standalone policies.
- Start-up and project-risk wording - For project start up or late-stage construction, adopt wording that reflects project value and includes cover for testing, commissioning and early revenue loss. Don't rely on post-commissioning BI templates.
- Indemnity period mechanics - Negotiate a minimum indemnity period and confirm the correct indemnity period for your revenue profile. This is shorter for heat-only sites and longer where long-term offtake contracts, incentives or development-linked revenues exist. Consider graduated or extended periods for protracted supply-chain issues.
- Material damage and non-damage business interruption - Ensure the insurance coverage differentiates between loss following physical damage and non-damage triggers. Add endorsements to provide cover for accepted non-damage exposures where possible.
- Contingency and mitigation endorsements - Include express wording for alternative offtake arrangements, spare-parts deployment, and accelerated repairs. This reduces the payable period and supports a defensible claim.
These product options and endorsements align BI limits with operational realities across anaerobic digestion facilities and broader renewable portfolios. They also help underwriters quantify insurance risks and ensure your insurance policies are structured to reflect the site’s project value and total insured value. This secures the correct indemnity period and practical insurance coverage for market and production volatility.
How we can help
We bring sector knowledge and market access to shape BI programmes that reflect current economics. We translate operational and pricing data into robust BI calculations and present compelling submissions to underwriters. We also help you test scenarios, so you know your true exposure. That combination of technical insight and market leverage gives you confidence at renewal.
If you run an AD plant, now is the moment to check your BI assumptions. Reviewing figures, assembling the right operational data and discussing tailored market options will protect your business from unexpected loss. It'll also put you in a stronger position at renewal. Contact our renewable energy experts to arrange a focused BI review and market approach.
