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 Post subject: Re: South Coast PFI
PostPosted: Wed Aug 30, 2017 4:42 pm 
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Has the South Coast PFI switched from using SON? I have noticed a significant number of white lighting on main roads in Gosport that were previously SON lit. In most cases there were patches of SON still being used. The same fixtures were being used.


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 Post subject: Re: South Coast PFI
PostPosted: Wed Aug 30, 2017 8:44 pm 
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If the same fixtures are in use, then CDO-TT metal halide lamps would have had to replace SON, otherwise its a gear and lampholder change.

Given the former lamps are more expensive and don't last as long, I doubt it, probably a shortage of SON lamps is causing the swap.

Also given the amount of dimming used by the PFI, and metal halide lamps are less suitable to be dimmed, (although they may be inhibiting dimming on those lanterns if indeed they are CDO-TT), casts further doubt on a mass swap over to a new lamp type.

Small amounts of LED got used in the last stages of the PFI, and if white light was being rolled out further (again unlikely at this stage), I would expect it to be via LED.


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 Post subject: Re: South Coast PFI
PostPosted: Thu Aug 31, 2017 6:14 pm 
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Agreed. I have seen a few instances of CDO-TT lamps being used where lighting is predominantly SON, but this isn't a new thing within the PFI. It is bizarre they do it, given that neither the Hampshire or Southampton elements of the South Coast PFI have any intentional non-CosmoPolis metal halide installations left. Perhaps they are using up lamps from the stores from back in the days when they had CDO-TT to maintain.


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 Post subject: Re: South Coast PFI
PostPosted: Tue Apr 10, 2018 10:57 pm 
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Portsmouth are going to be rolling out the installation of Mayflower CMS across the city which will be done in conjunction with the Colas LED replacement works. This followed a trial installation back in late 2017.


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 Post subject: Re: South Coast PFI
PostPosted: Mon Jun 11, 2018 4:25 pm 
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Despite replacing its lighting stock with lower power lighting and also dimming the new lighting stock quite considerably, Hampshire County Council is looking to make further savings on street lighting by potentially introducing part night lighting. A consultation has just opened asking for people's opinions. Any changes would be implemented in April 2019.


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