[Build] Lighting revamp

Ben Kochie ben at nerp.net
Mon Sep 12 20:48:08 PDT 2011


Yea, thanks for the input.  I've fixed a bunch of the fixtures simply by 
replacing bulbs.  I've found a couple with dead/half-dead balasts.  The 
main parts of the space are much more evenly lit.

Right now I think you're right, we should fix up the shop/classroom lights 
with local switches.  I'm pretty much available most days/evenings to work 
on things for the next few weeks.

I've now counted 44 working 8' bulbs.  Most of them are 60W with a couple 
75W bulbs.  I don't know if mixing 75/60 is bad for the balasts we have.

Next up I'm going to try and get TED-5000 units hooked up to measure what 
we're using where.

-ben

  "UNIX is user-friendly, it's just picky about its friends."

On Mon, 12 Sep 2011, jim wrote:

>
>    My schedule for this week is kind of jammed,
> but will probably free up toward the end of the
> week. I can probably plan some time during the
> week following to help out (including finishing
> the work in the Turing classroom).
> jim
> 415 823 4590 my cellphone, call anytime
>
>
> On Mon, 2011-09-12 at 15:38 -0700, Ben Kochie wrote:
>> Here are some of my research results so far.
>>
>> First, I got a contact for someone at Department of Enviornment that can
>> help us.  Because we have T12 bulbs and shit balasts/fixtures we're a
>> prime candidate for PG&E rebates.  From the sound of it, it's possible to
>> get a large chunk of the lighting repair work paid for by PG&E.
>>
>> One major thing we would need to do here is get a review of the existing
>> fixture situation "AS IS" in order to get the rebates approved.
>>
>> Please talk to me in person if you have any questions.  I'll be sure to
>> have a bunch of info ready for the Tuesday meeting.
>>
>> Second, LED lighting is feasable.
>>
>> Third, there are possibly rebates that would cover some of the cost for a
>> commercial control system (occupancy sensors/daytime control)
>>
>> -ben
>>
>>   "UNIX is user-friendly, it's just picky about its friends."
>>
>> On Mon, 12 Sep 2011, Ben Kochie wrote:
>>
>>> I have a ton of spare time right now and want to get to work on fixing the
>>> lighting at the space.  My count last night was we have 15 functional
>>> fixtures in use but need about 20-25 to properly light the space.
>>>
>>> Major areas that need more light: (They basically have no targeted bulbs)
>>>   * FabLab
>>>   * Classrooms
>>>   * Kitchen
>>>   * Hack shelves
>>>
>>> My todo looks like this:
>>>
>>> Get estimate on power used by the existing lighting
>>>   * I have a TED 5000 which can be installed in the panel
>>>   * This will give us up-to-the-min readings of use
>>>   * I'll try and get a couple more so we can have one per-panel
>>>
>>> Figure out the cost of upgrading all balasts to handle T8 bulbs
>>>   * We have 96" T12 bulbs right now
>>>   * T8 bulbs use about 20% less power for the same light output.
>>>   * Replacing the balasts may also save power
>>>   * Estimate of about $50 per fixture to do this upgrade.
>>>
>>> Figure out the cost of upgrading all celing lighting to LED.
>>>   * We would possibly need a stronger cost/benefit estimate for this.
>>>   * Would give us some major cool factor.
>>>   * We could go dimmable to better control the light levels.
>>>   * Spots could be used for better lighting of work areas.
>>>
>>> Get a bank of light switches setup so we can have more targeted light use.
>>>
>>> Research controls
>>>   * Easy/hackable X10 switches
>>>   * Commercial controls add nice things like occupancy/daytime sensors
>>>
>>>
>>> -ben
>>>
>>>  "UNIX is user-friendly, it's just picky about its friends."
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>>>
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