[time-nuts] [Bulk] Re: the end of light bulbs as we know it was Re: Safepower-up. was (Solartron 7075 ...)

J. L. Trantham jltran at att.net
Tue Oct 11 21:28:00 EDT 2011


My apologies to the 'time-nuts'.

If you think about it, electricity generation is mostly 'fixed cost'.  Only
the coal fired plants have a significant 'variable cost' factor.  

Therefore, if 'fixed cost', the utilities need a relatively steady flow of
cash to fund their operations since there is not much 'savings' for the
utility if there is a reduction in electricity demand.  If we are successful
in identifying a way to reduce our consumption of electricity, the only
outcome will be a higher price per KWH.  As a result, the cost will go up,
particularly for the low energy user.

Therefore, it seems to me that the most appropriate course is to use as much
electricity as possible to keep the cost per KWH as low as possible.  This
is especially true for hydro-power.

In general, the state utility commissions are reluctant to approve an
increase in utility charges.

IMO.

Joe


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Gerald Molenkamp
Sent: Tuesday, October 11, 2011 7:29 PM
To: time-nuts at febo.com
Subject: [Bulk] Re: [time-nuts] the end of light bulbs as we know it was Re:
Safepower-up. was (Solartron 7075 ...)

Hi All,

Sorry Tom, worth a mention.

I replaced all of my down lights after my Kids wanted us to contribute
to lowering our carbon footprint. On the positive side, moving to LEDs
will provide savings around $107/year in electricity charges.



Now to the negative part , noise floor from around 21MHz to well over
500MHz raised to a signal strength 5 to 6 across mid to upper HF / lower
VHF to upper UHF with them switched on, otherwise my noise floor is
Zero.

Lower VHF  to UHF SSB/FM low level signal work is now not possible when
LEDs are on, mostly at night when we enjoy the hobby.

The net effect of dirty LED lighting has long term issues with sensitive
receivers.

Regards

Gerald

VK3GJM  






There is one angle that was not covered, but which is relevant (at least
to those of us using any LF or HF time receivers).

Over the weekend I bought my first LED bulb.  It was on sale and I
wanted to see how it worked.  On the package it gave a warning that it
could interfere with HF communications in the 0.45 - 30 MHz range and to
not install it near any maritime emergency communications equipment.

Peter


On 10/11/2011 6:56 PM, Tom Van Baak wrote:
> This thread is wonderful, nostalgic, technical, futuristic, and 
> appropriate for someone's list. But not time-nuts. Please stop it now.

> Don't reply.
>
> /tvb


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