3 ms·
It is true. Have an example load of pictures: https://duckduckgo.com/?q=street+light+electric+car+charging&ia=images&iax=images https://duckduckgo.com/?q=street
by azalemeth 6y ago
It is true. Have an example load of pictures: https://duckduckgo.com/?q=street+light+electric+car+charging&ia=images&iax=images https://duckduckgo.com/?q=street+light+electric+car+charging.... My city (not London!) has had them for >3 years that I remember.
The main difference is that (a) each street light is actually ~ 10W, and (b) the wiring is massively over-specified. Quoting from a local authority source for street lights, [1], the minimum conductor area allowed (for the 220-270 VAC supply) is 6 mm^2, for a total thermal current limit of around ~55A. If you have, say, 100 lamps on a single "ring main", you still only have a power draw of ~1 kW, where the cable is rated to 55 V x 220 A ≈12.1 kW minimum.
[1] https://www.durham.gov.uk/media/3075/Street-Lighting-Specification/pdf/StreetLightingSpecification.pdf?m=636736461026070000 https://www.durham.gov.uk/media/3075/Street-Lighting-Specifi...
- throwaway201103 6y agoWhat's the carbon footprint of all the extra copper needed for the heavy gauge wiring?
- VBprogrammer 6y agoTesla's new fast chargers support 250kw peak per car. So even 12kw is nothing to write home about. How many poles is that shared between? If it's more than 4 then it's not really enough. I suspect the reason the conductor is over specified though is to avoid voltage dropping outside of the 10% range it's allowed.