Danny S. Parker's Blog (2)

Assessing long-term PV performance in a low-energy home

Zero Energy Home Friends,

My daily PV output from a 6.56 kW PV system has averaged 22.7 kWh/day over the last two years.

kWh= AC kWh from inverter to grid

irrday= cumulative kWh/m2/day plane of array

pvptmp= array temperature (F) taken on back on one of the modules

obs= elapsed…

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Added by Danny S. Parker on August 17, 2014 at 12:55am — No Comments

How much energy to cook that turkey

All,



How much electricity is need to roast a Thankgiving turkey & the rest of the holiday cooking extravaganza?



Monitoring baseline data from the Phased Deep Retrofit project being done by Florida Solar Energy Center for U.S. Department of Energy allows us to answer that question. Thanksgiving cooking in our 30 home, all electric sample averaged 2.76 kWh, 2.03 kWh more than it did on the Thursday before Thanksgiving (0.73 kWh)



Note that in the…

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Added by Danny S. Parker on November 28, 2012 at 9:29am — 2 Comments

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