From: Reuters
Published February 23, 2007 12:00 AM

U.S. States with Renewable Power Standards

Twenty-three of the 50 U.S. states have established "renewable portfolio standards" that, depending on the state, are either guidelines or rules regarding the share of renewable power generation of electricity delivered to customers.


The following list is not a direct comparison because the definition of renewable power varies by state.


Comparisons may not be proportional. For instance, New York requires 24 percent renewables by 2013, including large hydropower generation, which currently accounts for 19 percent of power consumed in the state, while California's 20 percent standard by 2010 does not count large hydropower projects in place now. Large U.S. hydropower projects are considered a mature source of energy and are not significantly expanding.


The following table shows states with renewable energy portfolio standards, compiled by the North Carolina State University's Solar Center.


STATE STANDARD BY YEAR


Iowa 105 megawatts 1983


Maine 1% more annually to 10% by 2017


Massachusetts 4% 2009


California 20% 2010


Connecticut 10% 2010


New Mexico 10% 2011


* Vermont 10% 2013


New York 24% 2013


* Illinois 8% 2013


Nevada 20% 2015


Montana 15% 2015


Colorado 10% 2015


Wisconsin 10% 2015


Texas 5,880 new MW 2015


Delaware 10% 2019


Maryland 7.5% 2019


Hawaii 20% 2020


Pennsylvania 18% 2020


Rhode Island 15% 2020


Washington 15% 2020


New Jersey 22.5% 2021


Washington, D.C. 11% 2022


Minnesota 25% 2025


Arizona 15% 2025


* A renewable portfolio goal, which is voluntary, as opposed to a renewable portfolio standard, which is generally enforced by a state regulatory agency.


Maine has goal to increase the share of renewable power by 10 percent by 2017.


A megawatt, by U.S. average, can power about 800 homes, but the number is lower for areas with high air-conditioning use, such as Arizona and Florida, where a megawatt can power about 400 homes.


Source: Reuters


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