SAN DIEGO SMART ENERGY 2020 - 50 GREENHOUSE GAS REDUCTION BY 2020

摘要

San Diego Smart Energy 2020 (Smart Energy 2020) is a strategic energy plan for San Diego County that paves the way for a shift from reliance on fossil fuels and imported power to an array of solutions that include: energy efficiency measures - high efficiency air conditioning systems; common-sense weatherization and conservation; the proven technology of photovoltaic (PV) panels, for large commercial use as well as on homes; small, highly efficient natural gas fired power plants that generate both power and heating/cooling; adoption of smart grid procedures that monitor and control the flow of electricity while saving money; and the institution of green building design principles on retrofit and new construction. The primary objective of Smart Energy 2020 is to achieve a 50 percent reduction in greenhouse gas (GHG) emissions from current levels by 2020. Smart Energy 2020 is designed to accelerate local, "smart" distributed generation, with an emphasis on energy efficiency, commercial PV systems, and combined heat and power installations. Implementation of Smart Energy 2020 will: 1) maximize GHG reduction, 2) enhance energy security by minimizing dependence on natural gas for power generation, and 3) greatly expand local clean peak generation capacity to minimize reliance on power imports during periods of high demand when competition for these power imports is greatest. Smart Energy 2020 calls for the addition of 2,040 MW of rooftop solar, with an emphasis on large commercial installations. It also includes the addition of 700 MW of clean distributed generation from combined heat and power (CHP) sources. Under Smart Energy 2020, renewable energy resources will provide 50 percent of San Diego County's energy demand in 2020. The San Diego Solar Initiative is the cornerstone of the Smart Energy 2020 strategy. The San Diego Solar Initiative is a $1.5 billion PV incentive program. The PV systems will be equipped with sufficient battery storage to allow full use of this 2,040 MW during peak demand periods. A limited San Diego Solar Initiative with a reduced PV incentive budget of $700 million is also evaluated. Under current cost allocation policy, San Diego Gas & Electric (SDG&E) customers will be charged only 10 percent, or $700 million, of the $7 billion lifecycle cost of the proposed Sunrise Powerlink (SPL) transmission project. A $700 million San Diego Solar Initiative will provide for 920 MW of PV capacity by 2020 equipped with sufficient battery storage for reliable peaking power duty. Smart Energy 2020 increases local peak generation in 2020 by 2,670 MW beyond the level of local peak generation achieved in the SDG&E plan. The projected peak demand in SDG&E service territory, following aggressive implementation of cost-effective energy efficiency and demand response measures, would be 3,500 MW. The greatly increased amount of local peak power generation capacity under Smart Energy 2020 would eliminate the need to build new transmission to provide reliability during periods of peak power demand. Under Smart Energy 2020, new residential and commercial buildings would incorporate state-of-the-art green building principles and sufficient rooftop solar to address expected electric energy consumption. These building would be net zero energy consumers from the standpoint of strategic energy planning.