Johnson/Chronister Residence

Member
City of Austin
Green Business Leader
Renewable Energy

Our entire home/office has utilized renewable electricity since 2005, through the City of Austin Green Choice program, whose source is the West Texas wind farms.

In March of 2013 we added the final 9.2kw array for a total of 18.4kw of on-site Solar Photovoltaics, making the home/office Net-Zero. Since 2007 our on-site solar has saved a total of 144,923 kilowatts, and is now producing over 2 Mega-watt of production each month.

In March of 2016 we purchased an electric car and slowly have been using up the COA AE credit. In late 2016, early 2017, unfortunately, a cold snap and extended overcast skies reduced our solar production!

Electric Bills
  • 2006 - $162/month
  • 2007 - $131/month*
  • 2008 - $126/month
  • 2009 - $113/month
  • 2010 - $158/month
  • 2011 - $208/month*
  • 2012 - $127/month
  • 2013 - $11.77/month*
  • 2014 - $28.83Credit/month
  • 2015 - $14.35/month
  • 2016 - $5.19/month
  • 2017 - $18.22/month
  • 2018 - $93.13/month*

  • *Our home/office is all electric, electric heat, electric hot water. In 2007 we installed a 3kw Solar PV system. In 2010/2011, we completed the second phase of our home/office. In 2012 we installed an additional 6.2kw Solar Pv system to offset the increased square footage, and in 2013 we added the final 9.2kw to complete the system. As of 2018 our personal tranportation is with an electric car and a plug in hybrid EV.
    Enphase Solar Generation

    Energy Produced CO2 Offset
    2012 3,862 kWh 5,885 lbs
    2013 19,702 kwh 26,238 lbs
    2014 23,313 kwh 28,125 lbs
    2015 21,102 kwh 26,600 lbs
    2016 19,922 kwh 28,056 lbs
    2017 18,425 kwh 26,088 lbs
    2018 17,954 kwh 25,880 lbs
    January 1,070 kwh 1,629 lbs


    On-site Solar Generation
  • 2007 - 2,323 kwh
  • 2008 - 2,586 kwh
  • 2009 - 2,689 kwh
  • 2010 - 2,698 kwh
  • 2011 - 2,962 kwh
  • 2012 - 6,656 kwh
  • 2013 - 19,702 kwh
  • 2014 - 23,313 kwh
  • 2015 - 21,102 kwh
  • 2016 - 21,072 kwh
  • 2017 - 20,996 kwh
  • 2018 - 17,954 kwh
  • 2019 - 1,070 kwh
  • Total todate - 144,923 kwh