Answers to questions by Andy Shulick 6/29/2011

1. What is the typical generation mix for electric utilities?

Information about Dominion’s Mix: The 2010 generation mix for Dominion Virginia Power included: Coal (41%), Nuclear (38%), Natural Gas (12%), Hydro/Other Renewables (7%), and Oil (2%)

us electric generation mix – Google search produced:

Fuel Mix for U.S. Electricity Generation

Source:U.S. EPA, eGRID, year 2005 data.

Electric Power Annual with data for 2009
Report Released: November 23, 2010
Report Revised: January 2011, April 2011
Next Release Date: November 2011

Figure ES 1. U.S. Electric Power Industry Net Generation, 2009
Source:U.S. Energy Information Administration, Form EIA-923, "Power Plant Operations Report."
Figure ES5. Fossil Fuel Costs for Electricity Generation, 1998-2009
Source:U.S. Energy Information Administration, Form EIA-923, "Power Plant Operations Report."

  1. What is the definition of kW and kWh? Provide more than just a clarification of the abbreviations.

Watt -

The unit, defined as one joule per second, measures the rate of energy conversion.

  • In terms of electromagnetism, one watt is the rate at which work is done when one ampere (A) of current flows through an electrical potential difference of one volt (V).

Two additional unit conversions for watt can be found using the above equation and Ohm's Law.

Where ohm (Ω) is the SI derived unit of electrical resistance.

Kw – Kilo Watt – 1000 watts

The kilowatt is equal to one thousand (103) watts. This unit is typically used to express the output power of engines and the power consumption of electric motors, tools, machines, and heaters. It is also a common unit used to express the electromagnetic power output of broadcast radio and television transmitters.

kWh - Kilo Watt hour -

The kilowatt hour, or kilowatt-hour, (symbol kW·h, kWh or kWh) is a unit of energy equal to 1000 watt hours or 3.6megajoules.[1][2] Related units are: megawatt hour (as 1 million W·h, symbol MW·h, MWh) or milliwatt hour (as 1/1000 W·h, symbol mW·h, mWh), and such. For constant power, energy in watt hours is the multiplication of power in watts and time in hours.

The kilowatt hour is most commonly known as a billing unit for energy delivered to consumers by electric utility or electric utilities.

  1. What are the on-peak hours for Dominion Virginia Power Rate Schedule GS-3 for the period of 1 June to 30 September?

Schedule GS-3 LARGE GENERAL SERVICE SECONDARY VOLTAGE

III. DETERMINATION OF ON-PEAK AND OFF-PEAK HOURS

A. On-peak hours are as follows:

1. For the period of June 1 through September 30, 10 a.m. to 10 p.m., Mondays through Fridays.

  1. Search the Dominion Virginia Power Terms & Conditions and provide an explanation of “Facilities Charge”.

Facilities Charge is covered in the Dominion Virginia Power Terms & Conditions Paragraph IV.E. . When a customer requests “excess facilities” such as a second line, two transformers, a larger transformer, etc. a facilities charge needs to be paid. The facilities charge is the “estimated new installed cost of all excess ____ facilities”. Comments by Ralph

  1. Do you have an analog or digital meter at your house?
  2. Digital
  1. Is the service to your house overhead or underground?
  2. Underground
  • Bring to class
  • Copy of your home electric bill for two consecutive months.
  • Copy of Dominion Virginia Power Rate Schedule 1 – Basic Residential Rate
  • Copy of Dominion Virginia Power Rider A – Fuel Charge Rider.
  • Download a copy prior to 1 July
  • and on 1 July. This rider changes on 1 July

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