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9,500 kWh of production in first year

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Posted by old dirtbeard on March 11, 2008, 1:49 am
 
Hi all,

It was one year ago today that we installed a 6 kWh, residential PV system
(30 Kyocera 200W panels and a SMA 6000U inverter, located in the Los Angeles
area).

After 365 days, it has generated 9,559 kWh on 4,396 hours, averaging about
26.2 kWh/day. We are on 12-month, net metering, and I won't get the final
bill for a while, but we will run a small surplus this year (generated more
than we consumed).

The year before we used more than a million watt hours of power, so in
addition to generating the power, we reduced our consumption a little. I
switched to CF lighting in most locations without dimmers, reduced the
wattage of many of the incandescent lights, put timers and motion sensor
switches, followed the wife around turning off lights, etc.

I have posted this before, but here are photos of the array and the
inverter:

http://www-rcf.usc.edu/~shook/images/Picture%20002.jpg
http://www-rcf.usc.edu/~shook/images/Picture%20008.jpg
http://www-rcf.usc.edu/~shook/images/Picture%20009.jpg
http://www-rcf.usc.edu/~shook/images/Picture%20010.jpg
http://www-rcf.usc.edu/~shook/images/Picture%20011.jpg


I  am very glad we did it.

With no increase in utility rates, it should pay for itself in less than
seven years (we are on Edison and many months we were paying the 200% over
baseline rates which can quadruple the cost per watt). If you are operating
at baseline rates, it probably would take you longer to achieve a 100% ROI.

Best,

doug
 



Posted by Paul M. Eldridge on March 11, 2008, 2:58 am
 
On Mon, 10 Mar 2008 18:49:34 -0700, "old dirtbeard"


Congratulations, Doug!  Great that you were able to reduce your
consumption below that of what your panels produced.  Now on to your
second year of living bill free!

Cheers,
Paul

Posted by Solar Flare on March 11, 2008, 2:34 pm
 Nice

Your garage is a mess but your wife looks pretty nice in that bikini!



Posted by old dirtbeard on March 12, 2008, 2:47 am
 Hi all,

It was one year ago today that we installed a 6 kWh, residential PV system
(30 Kyocera 200W panels and a SMA 6000U inverter, located in the Los Angeles
area).

After 365 days, it has generated 9,559 kWh on 4,396 hours, averaging about
26.2 kWh/day. We are on 12-month, net metering, and I won't get the final
bill for a while, but we will run a small surplus this year (generated more
than we consumed).

The year before we used more than ten million watt hours of power, so in
addition to generating the power, we reduced our consumption a little. I
switched to CF lighting in most locations without dimmers, reduced the
wattage of many of the incandescent lights, put timers and motion sensor
switches, followed the wife around turning off lights, etc.

I have posted this before, but here are photos of the array and the
inverter:

http://www-rcf.usc.edu/~shook/images/Picture%20002.jpg
http://www-rcf.usc.edu/~shook/images/Picture%20008.jpg
http://www-rcf.usc.edu/~shook/images/Picture%20009.jpg
http://www-rcf.usc.edu/~shook/images/Picture%20010.jpg
http://www-rcf.usc.edu/~shook/images/Picture%20011.jpg


I  am very glad we did it.

With no increase in utility rates, it should pay for itself in seven years
(we are on Edison and many months we were paying the 200% over
baseline rates which can quadruple the cost per watt). If you are operating
at baseline rates, it would take longer to achieve a 100% ROI.

Best,

doug






Posted by spaco on March 12, 2008, 2:05 pm
 Roughly, where are you?  And, how close did "pvwatts" come to predicting
the output you have gotten?



Pete Stanaitis

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