AIBU charging electric car without asking at Air BnB

[Needanadultgapyear]

We have an annex, it must remain part of the main property for planning purposes and therefore can not be on long term let as a separate home. We offer it on Air BnB it is near a major tourist attraction and a main road connect several UK ports to central and North England.
Our insurance excludes specifically charging electric cars, we put this in our listing and we are 5 minutes from a super fast charging point. If people ask I politely explain that we do not allow electric car charging and point them to the super fast charger.
We had guests a few days ago and DH noticed a wire from a bedroom to the car. So he went round and asked if they were charging. They claimed they were only charging mobile phones, but the wire did disappear.

I feel like this is CFery, but in RL people have said oh well it’s only a few pence.

Well he is wrong BUT you have every right not to allow this.
We have an electric car so i always try to book somewhere with a charger but quite a few places specifically state you can't and it CAN be dangerous if you aren't using the correct type of plug etc.
I think you should explicitly state in your T's and C's that its not allowed.

Most hydrogen is produced by steam methane reforming. That certainly isn’t a very green process.

Using electricity to produce hydrogen by electrolysis is green, as long as the electricity source is green to start with. As you say, it is inefficient and you might as well use the electricity to directly charge a battery.

It does have its place as a fuel for heavy vehicles like trains or ships.

If you want to rent on Airbnb fine but don’t claim it’s due to planning - that is easily sorted

Makes sense for ships. It surprises me that electrification of trains isn't more efficient than H2.

Yeah, electrolysis is "green", but the fact that a combustion engine is so inefficient is problematic. Because you are losing so much energy as heat, even if you made the hydrogen with renewable energy, you are going to need so much more / space resources (for wind turbines etc) to power that car.

Electrification for trains is more efficient than H2, just not always practical due to infrastructure costs, terrain or climate.

You can use hydrogen to power a fuel cell but overall efficiency is relatively low, although still better than a diesel engine.

Tbh they can't use much electric without a proper car charger ... a three pin plug puts in very little charge.

You can put a separate meter on the property to limit their energy use, I've stayed in a few properties that have had them (usually ones with saunas and things so if you go crazy on the electric you can buy more). So I would state in the information pack that electric car charging is against the terms of the property, there is an electric meter on the property and it will be sufficient to cover their stay but should they run low to let you know and you'll top up. That way people will know they can't sneakily charge cars. I'd also say if people are found to be charging you reserve the right to cancel their stay immediately without refund.

Whatever the rights and wrongs of EV cars and their safety, many insurance companies won’t insure a holiday let to allow charging from a domestic socket unless it’s a dedicated car charging point fitted and certified by a qualified electrician. This costs £££ and as (in France anyway) it is illegal to sell on electricity at a profit, you can’t add anything on to cover the installation cost.
If it’s a complex of several lets, then it may be worth it, but for a stand alone, it’s not.

Wehave had guests drape their charging lead out of a window, across a path and through a flower bed to reach their car. I directed them to the local charging stations. No offer was made to pay for the electric used…
Personally I think it’s the same as going into my shed and topping up their petrol from can for my mower.

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