作者: Otto VanGeet , Elizabeth Brown , Tom Blair , Andrew McAllister
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摘要: There is confusion in the marketplace regarding impact of solar photovoltaics (PV) on user's actual electricity bill under California Net Energy Metering, particularly with binomial tariffs (those that include both demand and energy charges) time-of-use (TOU) rate structures. The City San Diego has extensive real-time electrical metering most its buildings PV systems, interval data for overall consumption production available multiple years. This paper uses 2007 PV-system from two city facilities to illustrate impacts designs. analysis will determine savings systems are achieving relative absence systems. A financial performance various rates structures presented. revealed use benefits bionomial increase summer months, when resources allow maximized production. In a tariff system, varying on- semi-peak times can result approximately $1,100 change charges per month over not having system place, an approximate 30% cost savings. also shown have 30%-50% reduction facility 2007.more » Future work combining increasing breadth tested, including non-coincident charges.« less