Insuring a Rooftop Solar Plant: Policies, Exclusions and What the Insurer Asks For

A factory's rooftop solar plant is usually insured in layers: an erection or construction policy while it is built, the factory's property policy once it runs, and separate cover for inverter breakdown and lost generation. The standard fire policy covers fire and lightning but excludes electrical damage to the apparatus itself, so surge and inverter losses need their own cover.

Which policy covers the plant at each stage?

No single policy follows a solar plant from site delivery to year twenty. The cover changes as the risk changes, and the gaps sit at the joins. The table sets out the layers an owner normally assembles. Product names vary by insurer, so treat it as a checklist to take to your broker, not as a statement of what any insurer will issue.

Our note on gaps in erection all-risk cover covers the first row in more detail. The handover date matters most for solar: if the construction policy ends at practical completion and the owner's property policy has not yet picked up the plant, an installed and energised array sits uninsured.

What does the standard fire policy say about solar panels?

For most factories the second row of the table is the one that decides a claim. Since 1 April 2021 insurers have had to offer standard products for fire and allied perils, under IRDAI guidelines. Bharat Sookshma Udyam Suraksha applies where the total value at risk at one location does not exceed ₹5 crore across buildings, plant, stock and contents. Bharat Laghu Udyam Suraksha applies above ₹5 crore and up to ₹50 crore. The guidelines define nothing beyond that, so ask how your insurer covers a larger location.

The IRDAI template for the smaller product is useful because it names the equipment. It lists "solar panels" among the additional structures on the premises that the cover extends to, provided they are shown in the policy schedule. Two consequences follow.

• Declare the plant. A plant that is not in the schedule is an argument waiting to happen. The guidelines also say buildings and machinery are insured on reinstatement or replacement value only, not market value, so the sum insured should reflect what a new plant would cost, not its depreciated book value.
• Mind underinsurance. If the replacement value of the insured property is more than the sum insured, the claim is reduced in proportion. The template waives underinsurance up to 15 percent for the smaller product. Beyond that, the reduction applies. Adding a plant mid-year without telling the insurer is a common way to land in that zone.

The guidelines also do not allow a standard policy that covers only part of a building or only specified machinery. In practice that means the plant is added to the location's cover rather than insured alone under that wording. If an insurer offers a separate solar policy on its own wording, read it against these terms rather than assuming it is wider.

Which losses does the fire policy not pay?

The insured events in the template include fire, lightning, explosion, storm, cyclone, flood, landslide and impact damage. That sounds broad. The exclusions are where solar claims turn.

• The inverter hit by a surge. The template excludes damage to an electrical or electronic machine caused by over-running, excessive pressure, short-circuiting, arcing, self-heating or leakage of electricity, "lightning included". The exclusion applies to the particular machine. Ensuing damage to other insured property from an insured peril is still covered. So a surge that destroys an inverter is the owner's loss, but the fire that surge starts in the electrical room is not. This is why earthing and lightning protection belong in the insurance conversation, not only the design one.
• Hail. The storm peril in the template names cyclone, typhoon, tempest, hurricane, tornado, tsunami, flood and inundation. Hail is not in that list. Ask your insurer in writing how it treats hail damage to modules.
• Theft. The template covers theft only within seven days of an insured peril. Theft of modules or cable from an unattended roof needs a separate extension or policy.
• Unoccupied premises. Cover is restricted if the premises remain continuously unoccupied for more than 30 days without the insurer's written approval. A seasonal unit that shuts for months should raise this before it happens.
• Lost generation. Business interruption is not part of the standard fire products. It is bought separately, and so is any cover for lost savings when a roof plant is down.

What will the insurer ask for?

Insurers differ and each has its own proposal form, so ask for it early. The documents below are what a survey of a grid-connected factory plant typically turns on, and they are the same papers a good project file holds anyway.

For the first row, see our guide to Electrical Inspector approval for factories. Whether a given plant falls on the inspected side or the self-certified side depends on the voltage your state has notified, so confirm it for your connection.

Where does insurance sit in the EPC contract?

Write it into the contract rather than leaving it to the schedule of payments. The clauses worth fixing are: who insures the works until take-over, and in whose names; who bears the deductible; the exact date risk passes to the owner; and who pays for any extension of cover if commissioning slips. Ask for copies of the certificates, not a letter saying cover exists.

Insurance is also not a substitute for warranties or guarantees. Insurance answers a sudden event such as fire or storm. A module's power warranty and the EPC's performance guarantee answer slow loss and defects. Our checklist on what to check in a solar EPC performance guarantee covers that side, and a maintenance contract under AMC is what keeps the claims file clean afterwards.

How Secured Engineers helps

• We design the plant in-house, including the earthing, lightning and surge-protection scheme that insurers look at first.
• Fire NOC, CEIG and DISCOM net-metering filings are prepared in-house, so the approval papers an insurer asks for come from one file.
• MEPF and solar can sit under one contract, which keeps the electrical room, fire detection and plant in one scope.
• We work from offices in Noida (Delhi NCR) and Ludhiana, with 535+ projects across 18+ states and 89.77% repeat clients.
• We do not sell insurance and do not advise on policy terms. We give your broker the drawings, test records and approvals the underwriter will ask for.

If you are planning a plant and want the project file to be insurable from day one, start with our solar EPC service, then message us on WhatsApp, call +91 70099 85817 or ask for a free proposal with a site-specific scope and price.