March Statistics

The current billing period beginning on March 2, has been extremely productive.  As you can see in the chart from my utility, the gray bars that dip below the 0 axis are the days my solar panels generated more than I used in my home. The statistics for the period are revealing. The overall average […]

Benefits/Cost Avoidance

My electricity bill for the last 12 months is $540.70. That averages out to $45.07 a month. If I assume that my monthly bill used to average around $250 a month, that is an annual savings of $2,459.30 a year. My solar panels have been operational for 11 years. That means I have saved a […]

Status To-Date

Here’s an update on the performance of my solar panels this year.  My new mini-split A/C is paying dividends by allowing me to cool my bedroom at night to a comfortable level while keeping the rest of the house at a higher temperature.  The days are getting longer and I am optimistic about the next […]

Lots of Watts

Yesterday was so clear and cool that I think the charts from my house might represent an ideal system maximum for March 17th at this location. March 16th, the day before yesterday, was almost identical. This chart reveals that night time usage runs around .5 kWh.  That’s got to be phone chargers, DVR, and some […]

Worst Case

Yesterday, March 3, 2107, was overcast and gray all day long.  We even had some light showers.  It was probably a worst case day for solar energy generation.  Even so, we generated 28 percent of our energy from the sun.  This ends. a series of very good days up in the 80 percent range.  Our […]

Worst Case Scenario

January 29, 2017, was cold, cloudy, and rainy, a worse case scenario for our photovoltaic system.  I stood the chill as long as I could, but finally gave in and turned on my electric heat.  Because of the clouds, our solar panels only generated 1.9 KWH of energy while the heat used over 30 KWH. […]