Monthly Solar Production – March 2012


Tell you what, my new favorite day of the month is now the day I get my NStar bill. A bit of a loser? Perhaps. But my bill this month was only $21.39. That’s sick!

So it turns out that I overestimated my savings last month. I was assuming that all my charges were based off usage but there’s a small $6.43 flat charge every month that I just noticed. It doesn’t sound like much but it was enough to throw off my calculations.

So the bad news is that I didn’t save over $100 last month and only saved $86. But the good news is that I saved $106 this month! What’s even more impressive is that my solar panels generated almost 90% of my usage. Suh-weet!

Here’s a corrected chart showing my solar electricity production since inception:

Period Ending Production As % of Usage Savings
Dec 21, 2011 223 kWh 32.5% $45.05
Jan 24, 2012 288 kWh 34.5% $59.26
Feb 23, 2012 419 kWh 72.2% $86.81
Mar 23, 2012 484 kWh 87.7% $106.48
Overall 1,414 kWh 53.3% $297.66

If there seems to be some inconsistency, it is due to monthly usage fluctuations, the number of days per billing period and NStar price changes.

Also, since March is the end of Q1, I finally have an SREC to sell! I didn’t have one at the end of Q4 since I was only producing electricity for a little more than a month and you can only sell whole SRECs. Just to recap, an SREC represents 1,000 kWh of solar electricity and I’m up over 1,400 kWh now. It won’t get sold until the July auction but at least I’m finally eligible to start receiving this incentive.

Looks like the really warm weather has left us for a little while. But the heat was freaking me out with the trees still barren – at least now they’re getting some green.

Talk to you soon!


Share and Enjoy

  • Facebook
  • Twitter
  • Delicious
  • LinkedIn
  • StumbleUpon
  • Add to favorites
  • Email
  • RSS

Leave a Reply

Your email address will not be published. Required fields are marked *


You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>