Thursday, April 11, 2013


I think some of you need to see a current bill... this is from APS.com for the monthly billing cycle that ended on 3/20/2013.

Charges for electricity services

Cost of net electricity

Customer account charge $1.83

Delivery service charge $0.00

Environmental benefits surcharge $0.00

System benefits charge $0.00

Power supply adjustment* $0.00

Metering* $2.61

Meter reading* $1.80

Billing* $2.03

Generation of electricity* $0.00

Federal transmission and ancillary services* $0.00

Federal transmission cost adjustment* $0.00

LFCR adjustor $0.02

Cost of electricity you used $8.29

Taxes and fees

Regulatory assessment $0.02

State sales tax $0.56

County sales tax $0.06

City sales tax $0.25

Franchise fee $0.17

Cost of electricity with taxes and fees $9.35

Total charges for electricity services $9.35

Thursday, December 06, 2012

2012 Results -- partial year (9 months) of co-generation

Short cool days.  Now we're seeing production of 68-70 kWh per day.  I need to wash the panels, but when I inspected them last month after some rain they were not too dirty.  I think we may see only from 0-5% improvement, but I'll let you know.  It may be statistically insignificant.

Updated:  On December 19, 2012 the meter reading occurred and I was given a billing credit of $450 for the surplus of 6,877 kWh.  This was based on the winter low rate of about 6.5 cents per kWh.

Wednesday, July 04, 2012

Hot Summer Days

Well it has been a while.  Hot weather is offsetting the production we gain from longer days.  The highest production day was 168kWh with steady wind cooling the panels.  The stifling hot days had production down below 140kWh.  Today, July 4th, we produced only 50kWh with intermittent rain and heavy clouds all day.

The June bill was for 33 days and totaled 20.05.  This is pretty consistent and after 3 months I am paying about 65 cents per day for fixed charges like having a meter and having it read (electronically).  I'm happy with that and the bank of surplus kWh is approaching 7000 -- more than my two largest months of usage last year when the AC units needed service and the house was less insulated.  Repairs and service on the two big AC units and the small window unit, along with adding R14 of new foam on the roof, should lead to reduced consumption for this July and August.


Saturday, May 26, 2012

Does anyone actually notice my solar panels???

Some of you may think my house looks WEIRD with 99 solar panels... Here's the view from the street.







Thursday, April 26, 2012

Finally I have a bill to share!!!

I have copied the portion of the bill with all the numbers on it and here it is... modified to single column with spacing for ease of reading.  The original would not paste into Word 97 as formatted and later I pasted this to MS Paint to get a blog usable JPG file.  As you can see, the baseline bill for a PV install with surplus co-generation is 19.92 and may vary according to the number of days in the billing cycle.

Friday, April 06, 2012

APS Green Team Answer

Today I spoke to the APS Green Team.  I had emailed a question on the APS web site and had a phone message from the Green Team, so I was calling back.  The question was about why my new SMART METER is not posting any data on the My APS web site.  The answer is the the grid tied meter, albeit a SMART METER, is not currently supported by the My APS web page and will not post daily usage or co-generation numbers.

Now I need to pester Salt River Solar and Wind (my contractor) about installing the NICs into the three inverters so that I can see the PV production numbers on a web site.

JUST A FOLLOW-UP... This problem has been corrected.  Bi-directional metering is not fully supported, but the web pages do have daily usage (consumption only) again.