Re: PV solar design example



James Arthur wrote:

Eeyore wrote:
John Larkin wrote:
Spehro Pefhany wrote:
Jim Thompson wrote:
John Larkin wrote:
"Joel Koltner" wrote:
"Robert Latest" <boblat...@xxxxxxxxx> wrote in message

Yes, but the load would instantly plummet as price goes up. A household
washing machine could be programmed to only run if energy cost is below
a certain level.

In many other (non-U.S.) countries high-demand items such as water heaters run
off of a second, switched power line that's only energized at night. The
power company benefits from being able to even out their load whereas the
consumer benefits from paying less per kWh than the "regular" power line.

Heating water with electricity is insane. That's rare in the US; most
of us use gas.

John

But they're almost 100% efficient! ;-)

Smile when you say that, pardna.

Most of "us" do not ;-)

Most of "us" don't have CA electric rates ;-)

Virtually all new-builds in AZ are all-electric homes.

Did I mention that's insane?

CA should do "us" all a favor and fall off into the Pacific during the
next earthquake... just delight yourself with the high-count loss of
leftist-weenies ;-)
...Jim Thompson

Aside from offering CA best wishes, the current market share is
apparently around 50% for each in the US and Canada. There's also a
small chunk that use bottled gas (eg. propane) and a handful (<
150,000) of solar installations. Maybe there are heating oil fueled
water heaters, but I've never seen one.

That's common back East, a combined central-heating furnace and water
heater, run off heating oil. Also insane.

What's insane about it ?

The use of oil ?

Gas-->heat-->steam-->rotation-->electricity-->convey to house--

CONVEY ? to house ? They're fitted IN the house here.


convert voltage-->make heat. Kinda complicated & lossy compared to
"burn gas, make heat."

The gas 'central heating boiler' (a misnomer since it doesn't actually do any boiling) is
however the norm for heating in Europe.

That latest ones with flue gas condensation to recover 'lost heat' are around 92%
efficient now.

Graham

.

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