Selling Back to the Grid

1
Selling Back to the Grid

• Virginia Agriculture Summit
• Net Energy Metering
• February 10, 2009

2
Net Energy Metering

• Arrangement between the utility and consumer that
  allows the consumer to install renewable fuel
  generation on the consumers premise and
  interconnect it with the utilitys distribution
  grid

3
Renewable Generation

• Solar
• Wind
• Biomass
• Hydro
• Wave Motion
• Geothermal

4
Net Metering - Virginia

• Virginia Legislature ordered the Virginia SCC to
  investigate and promulgate rules and regulations
  regarding net metering for investor owned
  utilities, and cooperatives
• Renewable Generator Capacity should be sized near
  equal to the consumers load or usage

5
Net Metering - Virginia

• Residential - up to 10 kW maximum nameplate
  generator capacity
• Non-residential up to 500 kW maximum nameplate
  generator capacity

6
Net Metering - Virginia

• Renewable Generator Installation and
  Interconnection must comply with
• National Electrical Code Article 690
• Institute of Electrical and Electronic Engineers
  (IEEE) Standard 1547
• Underwriters Laboratories (UL) standards

7
Net Metering - Virginia

• Interconnection Requirements
• Application for interconnection
• Unit must automatically disconnect from utility
  for loss of utility source
• Manual disconnect near utility meter
• Installation by a licensed electrician
• County inspection
• Utility inspection
• General Liability Insurance

8
Net Metering - Virginia

• Net user of energy during the month results in a
  bill for the net kWh used
• Net generator of energy for the month will result
  in a credit toward usage during the next month

9
Net Metering - Virginia

• When consumer is a net generator for the year
• Consumer can enter into a purchase agreement with
  the cooperative
• Cooperative will purchase net kWh of generation
  at the avoided wholesale cost for energy during
  the period
• Others should refer to the Terms and Conditions
  of service for their electric service provider

10
Resources

• US Department of Energy Solar Technologies
  Program website http//www1.eere.energy.gov/solar/
  
• US Department of Energy Wind Resources Map
  website http//www.windpoweringamerica.gov/maps_te
  mplate.asp?stateabva

11
Resources

• Database of State Incentives for Renewables and
  Efficiency http//www.dsireusa.org/index.cfm
• Dominion Virginia Power Net Metering Terms and
  Conditions http//www.dom.com/customer/pdf/va/vatc
  25ra.pdf

12
Contact Information

• John Coffey
• VP Engineering Operations
• Shenandoah Valley Electric Cooperative
• Mount Crawford, Virginia
• 540.574.7252 (office)
• JCoffey_at_svec.coop

13
Questions
14
Selling Back to the Grid

• Virginia Agriculture Summit
• Net Energy Metering
• February 10, 2009