2A Work Session 2009 1109 - Laserfiche WebLink

Home

November 9, 2009 Section 2: Greenhouse Gas Inventory and Forecast industrial (C&I) buildings, which also includes industrial process emissions (e.g. related to boilers, metalworking machinery, food processing equipment, etc). Figure 2. Building Energy Use -Residential v. Non-residential (C8~1) Residential 4'' ' 33% ~`e ~ ~ '?"~.3 _ CormierciaV Industrial 67% Source: CACP Model output In 2005, San Leandro's 82,400 residents consumed 154,884,113 kWh of electricity, or about 4,942 kWh per household, and 12,617,590 therms of natural gas, or about 403 therms per household. This consumption resulted in a release of 114,339 metric tons of C02e. Major residential energy uses include refrigeration, lighting and water heating. Similarly, the commercial and industrial sector buildings consumed 453,938,288 kWh of electricity and 18,877,933 therms of natural gas. This consumption resulted in a release of 228,386 metric tons of COze into the atmosphere. The City of San Leandro receives its electricity from Pacific Gas & Electric Company (PG&E). The 2005 emissions coefficient for electricity provided by PG&E was approximately 0.493 Ibs/kWh,s and is subject to change annually due to fluctuations in hydroelectric output. 2.2.2 Transportation Emissions When including vehicles on state highways and local roads, the transportation sector is responsible for about 60 percent of San Leandro's greenhouse gas emissions. Motor vehicles driven within the City's geographical boundaries on both local and state roads emitted approximately 577,623 tons of C02 e in 2005. s Note that the types ofi power sources that make up a utility's electricity generation mix have a significant impact on a city's greenhouse gas emissions. According to the ICLEI Greenhouse Gas Report for San Leandro, the average coal fired power plant releases 1.3 metric tons of C02e per megawatt-hour of electricity generated compared with 0.7 metric tons for gas turbines and 0 metric tons for nuclear and renewable sources such as solar, wind, or hydroelectric power. PG&E's power mix is comprised of approximately 45 percent natural gas, 22 percent natural gas, 17 percent large hydro, 14 percent renewable energy and 2 percent coal. (Source: www.pge.com) s~~ ~ ra' ~ . r ~qp u' ear Page 9