Why do you need an explanation?
...there were probaby 5 times more incidents, all simply not reported.
It seems likely that other types of fires would not be reported either, so adding a random multipier of 5 isn't logical.
Let's dig in a bit to see how '130' fires might blossom:
'...e-scooter batteries being blamed for at least
five residential fires in London this year - in Brixton, Leytonstone, Newham, Willesden and West Drayton. '
and
'...104 fires involving lithium batteries last year - 44 from e-bikes, 28 from e-scooters and 32 other incidents, including mobile phones, laptops and cases where the e-scooter or e-bike was not identified. '
If 28 e-scooter fires resulted in 5 house fires, then the 44 ebikes ones might be responsible for another 44/28 *5 = 8 more house fires. So let's estimate it's 5+8 =:
- 13 house fires from e-scooters and ebikes in London.
London has a population of around 1/10th of the whole UK, so that 13 would equate to:
- 130 house fires across the whole country
From the gov link I posted earlier:
- accidental dwelling fires 24,296 (2020/21)
130 from 24,296 is peanuts, but that's because escooters/ebikes aren't that common yet.
From
https://cyclingindustry.news/electric-bike-sales-value-bike-demand-rising/
- 'Mintel does estimate that 170,000 e-bikes were sold in 2020...
one in 20 cycles bought in volume terms.'
Worst case - assuming ALL new bikes purchased were ebikes, we need to multiply the house fire figure of 130 by 20 to get an estimate of how dangerous it would be if all new bikes purchased were electric:
- 130 * 20 = 2,600 house fires
So worst case, ~10% of house fires in future might be due to escooters/ebikes, if sales are 100% electric.
As a fire service, I'd want to investigate that.
In the grand scheme it's still peanuts compared to cookers and smoking.
And it's still not worrying.