Mercury Emission Limits for Coal Plants Proposed by E.P.A. - NYTimes.com

She estimated the total annual cost of compliance at about $10 billion, in line with some industry estimates (although some are much higher), and the health and environmental benefits at more than $100 billion a year. She said that households could expect to see their electric bills rise by $3 to $4 a month when the regulation was fully in force after 2015.