[Electric boats - the future???]

On 15/10/2018 at 15:36, cuthound said:

 

 

But how many new builds with car chargers are built every year?  Certainly nothing like a million.

 

Whilst every little helps it is just scratching the surface.

 

 

 

The maths just doesn't add up.

 

Acording of the link below, streetlamps have bulbs of up to 250 watts, or 60 watts if they are of the LED type. 

 

https://www.quora.com/How-much-power-does-a-regular-street-light-consume

 

It is a safe bet that the wiring for any existing streetlamps will be sized for this, so capable of delivering a continuous current of about 1 amp.

 

Electric car chargers are rated between 3.0kW single phase  (12 amps) and 120kW 3 phase (about 160 amps per phase at 0.8 pf)

 

https://www.spiritenergy.co.uk/kb-ev-understanding-electric-car-charging

 

Therefore all of the wiring to all of the street lamps (and probaly the infrastructure feeding them) will have to be replaced for this to be viable.

According to this source, both single phase and three phase devices have 32 amps.