Do you have to tell your home insurer about plug-in solar?
Only if they ask, and it is your contents insurer, not your landlord's buildings policy. UK insurance law changed the rule in 2012. Here is what it actually requires.
Rules and product details last checked on .
Key takeaways
- You do not have a general duty to volunteer it. Since 2012, UK consumer insurance law requires reasonable care not to misrepresent when you answer what your insurer asks, not proactive disclosure of everything that might matter.
- It is your contents insurer, not your landlord’s buildings insurer. A plug-in kit is not fixed to the building, so it is your possession, covered the way a laptop or a bike is.
- Getting it wrong has two different consequences. A deliberate or reckless misrepresentation can void the whole policy. A careless one gets a proportionate remedy based on what the insurer would have done if you had told the truth.
- A typical kit does not look like a “high risk item” in the policy wording we checked, and single-item limits on ordinary contents cover are often comfortably above what one costs.
- The safe move is still to tell them. The law does not require you to volunteer information, but a five-minute call removes the question entirely, and most insurers do not charge more for it.
Only if they ask, and even then it is your contents insurer, not your landlord’s. Both halves of that answer surprise people, and both come from reading the actual law rather than repeating what other guides assume.
Whose insurance is it, actually
Start with the question almost every other guide skips.
A rooftop solar installation is fixed to the building, which makes it your landlord’s problem: their buildings insurance, their decision, their contract. A plug-in kit is different, for the same reason it is different everywhere else on this site. It plugs into an existing socket and is not fixed to anything. It is yours, the way a television or a bicycle is yours.
That makes it a contents insurance question, not a buildings one. If you rent, that is your own contents policy, and your landlord’s buildings insurer has no reason to hear about it. If you own a leasehold flat, the distinction still holds: the panel is a possession, not part of the structure, even if your lease requires consent before you fix anything to a balcony or railing.
What the law actually requires you to say
This is the part that surprises people, including us before we checked it.
Older guidance on insurance assumes a duty of “utmost good faith”: tell your insurer everything that might be relevant, or risk your cover. That duty was replaced for consumers in 2012.
Section 2 of the Consumer Insurance (Disclosure and Representations) Act 2012 sets out the current duty:
the duty of the consumer is to take reasonable care not to make a misrepresentation to the insurer
That duty is triggered by what you say in response to being asked, not by a general obligation to volunteer everything you can think of. If your insurer’s application form or renewal questions ask about appliances, alterations, or additions to the home, answering honestly satisfies the duty. If they do not ask, the Act does not require you to bring it up unprompted.
This is a real legal distinction, not a technicality to hide behind. It means the sensible question is not “do I have to declare this”, it is “has my insurer asked me anything this would answer”.
What happens if you get it wrong
The Act does not treat every mistake the same way, and the difference is worth understanding before you decide how careful to be.
Schedule 1 of the 2012 Act splits the consequences into two tiers.
Deliberate or reckless. If a misrepresentation was deliberate or reckless, the insurer:
may avoid the contract and refuse all claims, and need not return any of the premiums paid
That is the harshest outcome available: the whole policy can be treated as if it never existed.
Careless. A misrepresentation that was merely careless is treated differently. The remedy is based on what the insurer would have done had it known the truth. If they would still have offered cover on the same terms, your claim is unaffected. If they would have charged more, they can reduce a claim proportionately. If they would not have offered cover at all, they can treat the policy as void, but this is a calibrated response, not an automatic penalty.
In practice, that means an honest mistake about how to categorise a solar panel on a form is not treated the same way as knowingly hiding something to get a cheaper premium.
What an actual policy says about it
We wanted to see how this plays out in a real contents policy rather than guess, so we read one: a tenant contents insurance policy wording, the kind arranged for renters rather than homeowners, since that matches this site’s audience.
Two things stood out.
It defines “High Risk Items” by name, and a solar kit is not on the list. The policy’s enumerated category covers pictures, works of art, jewellery, watches, articles of gold, silver or precious metals, stamp and coin collections, photographic equipment, and furs. A plug-in solar kit is electrical equipment, not a collectible or a luxury item, and it does not naturally fall into any of those categories.
Ordinary contents cover has real headroom. This particular policy pays up to £2,000 for any single item under general contents cover. An 800 W kit priced around £400 to £600 sits well inside that, which suggests many policyholders will not need special arrangements at all.
One policy is one data point, not a survey. Insurers write their own wordings, and yours may define things differently. Check your own document rather than assuming ours matches it, and if you are shopping for a certified kit, it is worth checking before you buy rather than after.
What we could not verify
We looked for a position from the Association of British Insurers specifically on plug-in solar, since an industry body’s guidance would carry real weight here. We found that the ABI submitted written evidence to a parliamentary committee on a related fire safety question, but the UK Parliament committees website blocks automated access to the document, and we are not going to summarise a memo we have not read. If you have a copy or a link that works, we would like to see it.
We also have not surveyed how UK insurers in general categorise plug-in solar on their forms. The policy above is one real example, not a market study.
The practical answer
Given all of that, here is what we would actually do.
Check your renewal or application questions first. If your insurer already asks about alterations, appliances, or additions to the home, answer honestly and you are done. That satisfies the statutory duty regardless of what the policy wording says elsewhere.
If nothing prompts it, call anyway. The law does not require you to volunteer it, but a short call removes any argument about whether a question should have prompted disclosure, and most insurers we have seen mentioned treat a plug-in kit as ordinary contents rather than charging extra for it.
Keep the paperwork. The type-test reference and manufacturer documentation that prove your kit is a certified, compliant device are also what you would want on hand if you ever needed to support a claim.
Do this before you plug it in, not after something goes wrong. None of this substitutes for notifying your network operator, which is a separate legal duty under different rules entirely.
Frequently asked questions
Does my landlord need to know for insurance purposes?
Not for buildings insurance, if the kit is not fixed to the property. Their insurer covers the structure, not your possessions. You may still owe your landlord a conversation under your tenancy agreement, which is a different question covered in our guide on where you can put a panel.
Will telling my insurer increase my premium?
We have not surveyed pricing across insurers and will not guess a figure. Based on the policy wording we reviewed, a plug-in kit reads as ordinary contents rather than a high-risk item, which suggests it is unlikely to move the premium much for most policies, but you should ask your own insurer rather than assume.
What if my insurer never asks and I never mention it?
Under the 2012 Act, the statutory duty is triggered by what you are asked. If nothing prompts you to raise it, you have not breached that duty. We still think a five-minute call is worth it, because it removes the question rather than relying on the technical point.
This page carries the date it was last checked. We are not lawyers, and nothing here is a substitute for advice from a qualified adviser about your own policy. If you have read the ABI’s evidence on this and it says something relevant, tell us and we will add it with a link.