Some Solar problems ahead?

Wed Oct 12, 2011 9:00 pm   

Looks like there could be problems ahead. Had to happen I suppose. Not
enough thought went into it........


http://www.theaustralian.com.au/national-affairs/carbon-plan/rooftop-solar-panels-overloading-electricity-grid/story-fn99tjf2-1226165360822

Thu Oct 13, 2011 12:49 am   

Metro wrote:

Isn't that vindication of the program to install them;they can meet
demand, The overloading infrastructure problem should be laid at the
feet of the various state governments who ratted the infrastruture
refurbishfund that all the various electrical authorities had put aside.
That is why you are not going to pay 30%+ on your electricity bills.

Thu Oct 13, 2011 1:07 am   

On 10/13/2011 8:00 AM, Metro wrote:

**Care to explain how grid connected inverters are capable of feeding
MORE than mains Voltage (whether it is a nominal 230VAC or 240VAC) into
the grid? I have assumed that they all must meet the stringent criteria
laid down by the authorities.

--
Trevor Wilson
www.rageaudio.com.au

Thu Oct 13, 2011 4:06 am   

"Trevor Wilson"


** No current would flow from the inverter UNLESS it put out more volts than
were otherwise on the incoming line.

The story is mostly a beat up of something quite minor that happens only in
rural locations with long supply lines and hence relatively high source
impedance AC supplies. Such locations already suffer wider variations in the
AC voltage.

BTW:

High AC voltages mostly affect the lifespans of ordinary, 240 volt rated
incandescent lamps - which are banned from sale anyhow.


.... Phil

Thu Oct 13, 2011 4:39 am   

"Phil Allison" <phil_a_at_tpg.com.au> wrote in message
news:9fn6dvFd5oU1_at_mid.individual.net...

sale.......For instance.

http://lightingpro.com.au/catalog/index.php?cPath=21&RD=LPHomTxtLightGlobes

Pity though, nothing like the old 60w pearl.

Thu Oct 13, 2011 8:31 am   

On 13/10/2011 5:00 AM, Metro wrote:

What's that supposed to mean:

'Mr Hart said the size of conductors and cables in the streets would
have to be upgraded "so it can handle lots of solar, versus times when
there's lots of load and no solar".'

As if our infrastructure was designed with local solar PV supply in
mind. That sounds like a lot of BS to me.

The problems I see are rapid changes of insolation in areas where PV
supply is dominant (e.g. clouds moving fast). It takes time for the flow
from the power station to react. And that's how I imagine over and under
voltages could occur. Obviously, if most of the inverters are working
properly and cut out when the voltage gets to high there would be at
least no over voltage.

Tony

Thu Oct 13, 2011 8:55 am   

"Tony Simpleton"


** Makes perfect sense.

If there is adequate copper, then voltage drop problems vanish.





** My god - you really are off with the fairies.



.... Phil

Thu Oct 13, 2011 8:24 pm   

On Thu, 13 Oct 2011 15:06:12 +1100, "Phil Allison" <phil_a_at_tpg.com.au>
wrote:



Only last Tuesday, I spotted a shelf full of incandescent bulbs on
sale at Coles in Launceston.

Thu Oct 13, 2011 8:32 pm   

On 10/14/2011 7:24 AM, Jeßus wrote:

**There are still a large variety of IC lamps available. Fancy shapes,
odd bases, halogens and others.

--
Trevor Wilson
www.rageaudio.com.au

Thu Oct 13, 2011 9:10 pm   

"Jeßus"

"Phil Allison"


** What a vile, over snipping turd you are.

My original comment was:

"High AC voltages mostly affect the lifespans of ordinary, 240 volt rated
incandescent lamps - which are banned from sale anyhow. "

FFS " ordinary, 240 volt rated " = GLS, non halogen.



.... Phil

Thu Oct 13, 2011 10:20 pm   

On Fri, 14 Oct 2011 08:10:12 +1100, "Phil Allison" <phil_a_at_tpg.com.au>
wrote:


And what's worse, no remorse about it either.

Fortunately for turds like myself, crimes against Usenet do not fall
under the ICC's jurisdiction, else I'd fully expect to be extradited
to The Hague.


OK. So what is 'GLS'?

Thu Oct 13, 2011 10:34 pm   

On 10/14/2011 9:20 AM, Jeßus wrote:

**General Lighting Service.

--
Trevor Wilson
www.rageaudio.com.au

Thu Oct 13, 2011 10:37 pm   

........snip etc.


It's a badge you see on the back of some automobiles.

Thu Oct 13, 2011 10:57 pm   

On Fri, 14 Oct 2011 08:37:19 +1000, "SFD" <sfd_at_127000.00> wrote:


Oh. 'Thanks' for that

Fri Oct 14, 2011 12:10 am   

"Phil Allison" <phil_a_at_tpg.com.au> wrote in message
news:9fnnciFhg2U1_at_mid.individual.net...

the upgrading going on throughout the Western Suburbs of Sydney