TY - JOUR AU - Fullerton,Don AU - McDermott,Shaun P. AU - Caulkins,Jonathan P. TI - Sulfur Dioxide Compliance of a Regulated Utility JF - National Bureau of Economic Research Working Paper Series VL - No. 5542 PY - 1996 Y2 - April 1996 UR - http://www.nber.org/papers/w5542 L1 - http://www.nber.org/papers/w5542.pdf N1 - Author contact info: Don Fullerton Department of Finance University of Illinois BIF Box#30 (MC520) 515 East Gregory Drive Champaign, IL 61820 Tel: 217/244-3621 Fax: 217/244-3102 E-Mail: dfullert@illinois.edu AB - Electric utilities can reduce sulfur dioxide emissions through a variety of strategies such as adding scrubbers, switching to low- sulfur coal, or shifting output between generating plants with different emissions. The cost of achieving a given emission target can be minimized using a market for emission allowances, as under the Clean Air Act Amendments of 1990, if firms with high abatement costs buy allowances while those with low abatement costs reduce emissions and sell allowances. However, public utility commissions regulate which costs can be passed to customers. Previous theoretical work has analyzed effects of regulations on a utility's choice between permits and a single continuous `abatement technology.' Here, we consider three abatement technologies and the discrete choices among them. Our numerical model uses market and engineering information on permit prices, scrubber cost and sulfur removal efficiency, alternative fuel costs and sulfur content, plus generating plant costs and efficiency. Using illustrative sets of parameters, we find that regulatory rules could more than double the cost of sulfur dioxide compliance. ER -