Category Archives: solar

Updated solar stats pages.

Posted on June 19, 2007 by slacy

I’ve updated my solar stats pages with 30-day and 90-day reports. Take a look!

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Solar monitoring is back up, bugs fixed.

Posted on May 17, 2007 by slacy

I’d been struggling to find time to debug the problems I’ve been having with my solar monitoring system. Well, after filling up my hard drive with 60+GB of logs, I finally have deployed a fix to production, and the new … Continue reading →

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Weather on your desktop

Posted on May 15, 2007 by slacy

One of the interesting questions about having a solar system is how does the weather affect solar production. Specifically, how does temperature effect the panel output. If I ever had spare time and money, I’d get one of these WMR918 … Continue reading →

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Graphing my solar system’s output.

Posted on April 26, 2007 by slacy

I’ve set up rrdtool to collect and graph the output of my solar system, as well as some other interesting numbers. Check it out!

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17W shy of theoretical maximum output.

Posted on April 14, 2007 by slacy

As of 3:15pm today, my solar system was only 17W shy of its theoretical maximum output. I was shocked when I looked at the inverter and meter, which both confirmed the same numbers. Theoretical output is: 22 panels * 175 … Continue reading →

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Solar is turned on for good!

Posted on April 10, 2007 by slacy

PG&E came out and installed and inspected my NEM (Net Metering) system today. This means that I can (and have!) turn on my solar system for good! The NEM E7 meter records total usage as well as “peak” usage in … Continue reading →

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My eeeevil twin

Posted on March 27, 2007 by slacy

Stephen Lacey is the host of “Inside Renewable Energy” which is supposedly the #1 Renewable energy podcast! Here’s a big shout out from one Steve L. to another!

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Feinstein & renewable energy.

Posted on March 26, 2007 by slacy

Today, I filled out the form on solar-nation.org. It sent e-mails for me to Dianne Feinstein, Anna Eshoo and Barbara Boxer. Boxer & Eshoo sent generic “thanks for your feedback” e-mails, but the awesome Dianne Feinstein sent this: March 26, … Continue reading →

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Vernal Equinox and solar production.

Posted on March 25, 2007 by slacy

So, in my last post, I postulated that the average solar production for the year was equal to the production on the equinox. After pondering this for a while, I realized something else. The issue is the angle of the … Continue reading →

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13 kWh produced today.

Posted on March 24, 2007 by slacy

I know. I’m not supposed to have the system turned on until the PG&E and city inspections are complete, but I couldn’t resist leaving it on for the day (or for the weekend) to see how much electricity it produced. … Continue reading →

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