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Increasing societal concern for global warming and energy security have led many of the US states to adopt policies like Renewable Portfolio Standards (RPS). Introduction of these environmental policies in the energy market are expected to have significant impact on grid operation as well transmission investment. The energy delivery system has to be upgraded significantly in order to make it capable of handling these changes. It has been claimed that upgrading the present transmission system to a Smart Grid would facilitate the integration of renewable resources. Controllable Energy Flows (CEF) is one method to realize power flow control on the Smart Grid. The CEF method controls transactions of incremental power using distributed assets like Distributed Series Impedances of Controllable Network Transformers. The paper studies the benefit of Smart Grid technologies like Controlled Energy Flows in reducing transmission investment that is required to implement policies like the RPS.