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Greenhouse Gases and Climate Change
Key Issues
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Dominion recognizes that there is growing concern about increases in emissions of greenhouse gases and potential impacts to the earth’s climate. For this reason, Dominion has been following the science and public policy debate on climate change for more than a decade.

While scientists continue to enhance their understanding of the science and possible impacts of global climate change, policy makers are contemplating potential greenhouse gas mitigation measures.

Dominion is already subject to greenhouse gas reporting requirements in a number of states within which we operate and is subject to a CO2 cap-and-offset program in Massachusetts and is likely to become subject to the Regional Greenhouse Gas Initiative (RGGI) cap-and-trade program in Massachusetts and Rhode Island.

Reducing the GHG Profile of our Generation Mix

In 2003, the company retired two oil-fired units at our Possum Point Power Station in Northern Virginia, replacing them with 550 MW of new state-of-the-art combined cycle technology. We also converted two coal-fired units (322 MW) at Possum Point to natural gas firing.

Since 2000, Dominion has added more than 2,900 MW of new gas-fired generation (excluding Possum Point), more than 2,500 MW of non-greenhouse gas emitting nuclear generation.  It also has added 80 MW of renewable biomass, 63 MW of biomass co-fired with coal and a 164 MW wind project (50% ownership) to its generation mix.

Climate Change Policy Principles

Dominion believes that Congress is likely to pass legislation that imposes requirements on greenhouse gases.  We believe that climate change policy must be developed hand-in-hand with a sound U.S. energy policy that provides fuel diversity, a reliable energy supply and affordable electric service.  The optimal approach should effectively promote the development and deployment of technology-based solutions, including renewable energy, advanced nuclear, gas and clean coal technologies as well as energy efficiency and conservation. 

Accordingly, any policy should be designed and implemented in such a way that slows the current trend of increasing greenhouse gas emissions and then gradually reduces emissions over time to allow for the development and deployment of new non- and less carbon intensive technologies in the marketplace that will be necessary to augment the nation’s existing generation fleet. This is crucial to sustaining and enhancing economic, social and environmental progress domestically and globally.

Dominion is meeting the growing energy needs of our customers through our well-balanced portfolio of assets including electric generation, gas exploration and  production, transmission and distribution.  With this diverse portfolio, Dominion should be well-positioned under a reasonably implemented domestic climate policy.

If carbon emissions are to be reduced, costs will increase to some assets. However, there will be increased pressure on the demand for natural gas. This in turn will increase prices for both natural gas and electric power. Dominion's substantial nuclear fleet and natural gas businesses act as natural offsets against such increased costs.

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Emission Rates Well Below Industry Average

As of the end of 2005, our generation business’s greenhouse gas emission rate is well below the industry average, primarily due to our diverse generation portfolio.  We remain committed to our non-emitting nuclear and hydro-electric assets. Dominion either has completed or is in the process of renewing operating licenses for its existing nuclear and hydroelectric units. In addition, the company recently acquired a 50 percent interest in a 164-MW wind turbine facility in West Virginia.  These efforts, coupled with the deployment of new, highly efficient technologies to meet future energy demands, will continue to diversify our generation portfolio.

In addition, we have undertaken a number of other initiatives to reduce or avoid greenhouse gas emissions, including projects to sequester carbon, reduce gas transmission pipeline emissions, improve efficiency in exploration and production and electric generation operations and reducing emissions of sulfur hexafluoride (SF6) in electric distribution operations.

Dominion is actively participating in several voluntary programs including the U.S. Department of Energy’s (DOE) Power Partners and the DOE’s Voluntary Reporting of Greenhouse Gas Emissions and Reductions Program.

Learn more about carbon dioxide emissions from Dominion operations.

Greenhouse Gas Requirements

Dominion will fully comply with all applicable greenhouse gas emission reduction requirements.  We already report our emissions to states where such reporting is required, and we voluntarily disclose emissions from generation and our gas transmission and delivery operations in this report.  In addition, we are or soon will be subject to CO2 emission caps at our Brayton Point, Salem Harbor and Manchester Street power stations (see below).

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Massachusetts CO2 Requirements

Two of our stations, Brayton Point and Salem Harbor Power Stations, are subject to the Massachusetts multi-pollutant regulations that established a cap on emissions of CO2, which became effective in 2006, and impose a 1,800 lb/MWhr rate limit effective in 2008. The regulations allow the use of greenhouse gas offsets for compliance.

Dominion is already meeting the initial emission caps and plans to comply with the emission rate requirements of the Massachusetts regulations through a combination of strategies, including but not limited to eligible greenhouse gas offset procurement.  In early 2007, Dominion joined with several other energy companies in a collaborative process to identify and procure high quality greenhouse gas emission reductions and/or carbon sequestered from projects located in the U.S. for use as offsets for compliance with current and future climate change programs. 

Called the U.S. GHG Offset Acquisition Initiative, the process is intended to facilitate the continued development of the U.S. emission trading markets through the financing and implementation of projects that reduce and/or sequester greenhouse gas emissions.

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Regional Greenhouse Gas Initiative

On December 20, 2005, the states of Connecticut, Delaware, Maine, New Hampshire, New Jersey, New York, and Vermont announced an agreement to implement the Regional Greenhouse Gas Initiative (RGGI) to reduce CO2 emissions from electric generating units through a regional cap-and-trade program. The agreement was signed by the Governors of the participating states through a Memorandum of Understanding (MOU). Since then, legislation has passed in Maryland that requires Maryland to join RGGI. In addition, the Governor of Massachusetts has officially signed Massachusetts onto RGGI and the Governor of Rhode Island has announced that it will join as well.

The RGGI, if ultimately adopted into law by each of the states, will cap CO2 emissions at current levels in 2009 through 2014, with a 10 percent reduction by 2019 (2.5 percent per year decline over the period 2015-2018).  A Model Rule detailing specific compliance requirements and implementation mechanisms of the RGGI cap-and-trade program that states can adopt was developed and finalized in 2006.  Most of the RGGI states are now engaged in the process of developing regulations at the state level that largely adopt the major elements of the Model Rule, including provisions for allowance allocations and auctions.

Dominion owns and operates five generating facilities in the RGGI region.  The Brayton Point and Salem Harbor stations in Massachusetts, which burn coal and oil, and the Manchester St. Power Station in Providence, RI, which burns natural gas and limited oil, will be subject to RGGI. 

Although specific details are unknown at this time, we expect that the reduction requirements of the CO2 provisions of the Massachusetts multi-pollutant rule and RGGI will be merged in some way to avoid a requirement to meet two separate regulatory programs to address CO2 emissions   The Millstone Generating Station in Groton, Connecticut is a nuclear generating station and will not be subject to the reduction requirements of the RGGI program. The electric generating units at Dominion's Cove Point facility are exempt from the RGGI requirements due to their size.

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