Chris Bergeron's Blog » iphone http://chrisbergeron.com My projects, rants and general info Thu, 17 May 2012 07:30:02 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Solar: Update 2 http://chrisbergeron.com/2009/09/test/ http://chrisbergeron.com/2009/09/test/#comments Tue, 15 Sep 2009 19:25:02 +0000 Chris http://chrisbergeron.com/?p=354 Tracking electricity usage is an important component of solar power. In order to help me achieve this goal, I wrote some software to help me monitor my electricity usage. Each month when the electric bill arrives, I input the data into an iPhone applet. This applet records the data into a database. I’m not going to link to it for privacy reasons, but here’s a picture of the applet:


Here are a couple of graphs produced from it. The first are the bill amounts:
Bill amounts

The second is the number of kiloWatt hours used:
kWh used

Here’s the latest data (as of Sunday 20th of May 2012 10:00:51 AM):

  • 58 months of data
  • 50,592 kiloWatt hours used totalling: $USD 6,107.35. This equates to a practical average price per watt of: $USD 0.12 (including base charges and tax)
  • Average bill amount: $USD 105.30
  • Average kWh per month: 872
]]> http://chrisbergeron.com/2009/09/test/feed/ 0 iPhone page to record mileage http://chrisbergeron.com/2008/04/iphone-page-to-record-mileage/ http://chrisbergeron.com/2008/04/iphone-page-to-record-mileage/#comments Thu, 10 Apr 2008 06:44:31 +0000 Chris http://chrisbergeron.com/?p=74 I wrote a page for my iPhone that allows me to update my mileage remotely from a gas station. When I enter my gas mileage, it automatically updates the stats on my hypermiled car page. Here’s a screenshot of the iPhone applet:

iPhone record mileage

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