Laserfiche WebLink
Natural Gas <br />Northwest Natural supplies the Eugene/Springfield area with natural gas through the North and <br />South Eugene gates. Information for total annual therm use for both gates from 1990 to 2005 <br />was provided. Northwest Natural also provided estimates of the percent of total used by Eugene <br />proper and the percent of use between the three sectors within Eugene, residential, commercial <br />and industrial. Estimates were calculated by first applying the Eugene area percent of use and <br />then the sector split proportions. This information is summarized in the table below. <br />Eugene UGB Natural Gas Consumption-Annual Therms <br />% <br /> Sector split1990 1990 2005 2005 <br />EugeneEugene <br /> Total only Total only <br /> all therms 80% all therms 80% <br /> <br /> 49,600,000 82,402,000 <br />62,000,000 103,002,500 <br /> <br /> 24,800,000 41,201,000 <br />Residential 50% <br /> 17,360,000 28,840,700 <br />Commercial 35% <br /> 7,440,000 12,360,300 <br />Industrial 15% <br />Projected growth in natural gas use in was obtained from the Northwest Natural Gas 2004 <br />Integrated Resource Plan, Volume III, Technical Appendix. The results of NWN Gas planning <br />process were presented in aggregate for the state of Oregon. The average of the 10 and 20 year <br />projections for the “medium” growth scenario was 1.75%. This annual growth projection was <br />used in the ICLEI model. <br />Sources for this information: <br />Doug Tilgner, Manager of System Operations, Gas Supply Dept, NW Natural <br />Jean-Marc Ohlmann, System Design Engineer, NW Natural. <br />Steam <br />EWEB provides district steam to 94 commercial customers, at the time of this report, in the <br />downtown and university areas. Steam is now produced at EWEB’s riverfront plant by burning <br />natural gas and occasionally, light fuel oil. In 1990 the fuel for producing steam was hogged <br />wood fuel and heavy fuel oil. Steam is distributed through a network of underground piping. <br />The City of Eugene has 6 buildings in the downtown core that use steam for space and water <br />heating. <br />EWEB initially furnished information on the total annual measured consumption of the steam <br />system in 1990 and 2005. However, figures were not available that described the overall <br />emissions signature of EWEB steam, taking into account the mix of fuel and the efficiency of the <br />delivery system. Figures were available, however, for the total fuel input to the steam system. <br />18 <br />