Good luck with that one - the street light replacement programmes currently under way in the UK are putting in columns that are just about strong enough to take the lights.
And name a UK council which won't bite Amazons arm off if they offer to replace and pay for their street lights and pick up the electricity bill? And incidentally have the opportunity to offer WiFi and digital TV to everyone in the footprint, bypassing the BT "final mile" copper road block? And I'm pretty sure the same applies in a lot of countries/states.
An undercover operation to steal the shorts of an awful lot of ISP companies...