Monthly Archives: February 2016

End of Astronomical Winter

We marked the end of astronomical winter with another great solar day.  It was clear and bright yesterday resulting in an almost identical day to the previous one.  Once more we generated 122 percent of our energy buying 8.83 KWh … Continue reading

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Another Great Solar Day

Yesterday, February 25, 2016, FP&L, our local electrical utility delivered 9.36 kWh to our house while we sold 13.59 KWh back to them. We generated a total of 23.8 KWh from our solar panels or 122 percent of our energy. … Continue reading

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Spreadsheet for first four years of operation.

I kept daily readings of my electric meter and my charge controllers for the first four years of operation.  These thousands of data points are a valuable resource for examining the performance of my system and learning its specifics.  For … Continue reading

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Another good day

These spring days that are cool and clear are great days for solar energy.  We almost made it to another net zero day yesterday.  Here is our percent generated from solar gauge for yesterday.  We’ve sold 47.58 kwh back to … Continue reading

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Usage Vs. Average Daily Temperatures

Looking at our usage chart from our utility for this month you can see a clear correlation between temperature and energy usage. Where the line indicating daily average temperature dips on the days when we had a strong cold front … Continue reading

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Detailed Records

I kept detailed daily records of the operation of our system for a little over four years.  Those data include daily records of usage and generation with daily comments about conditions or other observations.  They may be seen here if … Continue reading

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Cloudy Day

Yesterday was pretty cloudy and yet our photo voltaic system performed pretty well. Here is the percentage gauge for February 19. 2012.

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First Net Zero Day This Year

We had our first “Net Zero” day this year on February 17 when we generated 112 percent of our energy from our solar panels. It was an absolutely perfect day for solar, cool and not a cloud in the sky. … Continue reading

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