Daly City's Green Vision - City of Daly City

Figure 3.5: Emissions from Major Facilities by Source
Electricity
51%
Natural Gas
45%
Refrigerants
1%
Diesel
3%
Gasoline
0.2%
3.4.2 Streetlights, Traffic Signals, and Other Public Lighting
Like most local governments, Daly City operates a range of public lighting, from traffic signals and sidewalk
lighting to park lights. Electricity consumed in the operation of this infrastructure is a significant source of
greenhouse gas emissions.
In 2005, public lighting in Daly City consumed a total of 2.54 kilowatt hours of electricity, producing approximately
570 metric tons CO 2 e. Table 3.5 depicts 2005 emissions per lighting type and estimated electricity consumption and
costs associated with the activities that generated these emissions. The City spent approximately $285,554 in 2005
on the fuels and electricity that were the cause of these emissions.
Table 3.5: Energy Use and Emissions from Public Lighting
Source
Greenhouse Gas
Emissions (metric
tons CO 2 e)
Percent
Emissions of
All Lighting
Electricity
Use (kWh) Cost
Streetlights 458 80% 2,046,462 $217,375
Traffic Signals/
Controllers 76 13% 341,180 $51,258
Park Lighting 30 5% 135,344 $13,716
Other Outdoor
Lighting 5 1% 24,383 $3,205
TOTAL 570 100% 2,547,369 $285,554
2005 Daly City Government Operations Greenhouse Gas Emissions Inventory 22