Skip Ribbon Commands
Skip to main content
Home | Support RFF | Join E-mail List | Contact
RFF Logo
Skip navigation links
RESEARCH TOPICS
CENTERS
PUBLICATIONS
NEWS
EVENTS
RESEARCHERS
ABOUT RFF
 

 

 
Join E-mail List
Please provide your e-mail address to receive periodic newsletters and invitations to public events
 
 
Green Corridors: Linking Interregional Transmission Expansion and Renewable Energy Policies
Shalini Vajjhala, Anthony Paul, Richard Sweeney, Karen L. Palmer
RFF Discussion Paper 08-06 | March 2008
RESEARCH TOPICS:
Abstract
A variety of recent policy measures have been advanced to promote interregional power transmission investment in the United States; among these are the designation of corridors on federal lands in western states and the identification of national interest electric transmission corridors across the country. Although these corridors have been put forward as critical policy interventions to modernize an aging transmission system, their effectiveness could be undermined by parallel policies, such as renewable portfolio standards (RPSs), designed to alter the landscape for new investment in generation capacity. This paper presents the results of a scenario analysis of the relationship between the interregional power grid and renewables policies to evaluate 1) the effects of state and national RPS policies on interregional power flows and 2) the impacts of transmission expansion on the locations and types of new, renewable sources for electricity capacity additions. Using the RFF Haiku Electricity Market Model, we find that the locations of transmission corridors could have a significant impact on the location, type, and marginal cost of generation in the future. Conversely, a national RPS would induce interregional power flows across the country significantly different from those that would prevail in the absence of such a policy. In particular, a national RPS would promote western renewables and shift power flows to the East. Under either a set of state-level RPS policies or a national RPS, the majority of power flowing into California will come from the Pacific Northwest, not from the Southwest, which is where corridors are most abundant. Additionally, a national RPS could motivate more than 10 GW of new biomass capacity in the Southeast, but grid expansion could shift 6 GW of this capacity to the Plains states and western wind.
RFF Home | RFF Press: An Imprint of Routledge Terms of Use | Privacy Policy | Copyright Notice
1616 P St. NW, Washington, DC 20036 ยท 202.328.5000 Feedback | Contact Us