June 2022
STREET LIGHT STATUS
1 Street Light System Overview
2 City owns and maintains approximately 7,000 street lights SCE provides the power to the street light systems with the City owning and maintaining the poles, fixtures, conduit and wiring from the SCE power source and transformers Approximately 3,500 lights are on the low-voltage (parallel) system Converted to LED fixtures
Approximately 3,500 lights are on the high-voltage (series) system Cannot be converted to LED fixtures
System is antiquated and obsolete
Neighborhoods are going dark due to damage to circuitry or SCE transformers
System Location
3 High Voltage System Issues
4 Lighting circuits and fixtures can no longer be reliably and cost effectively operated and maintained.
Transformer failures now take weeks to resolve resulting in neighborhoods being dark at night.
Damage to wiring (typically by contractors) is taking longer to repair.
SCE transformer manufacturers are no longer willing to produce and sell the Regulated Output (RO) transformers which the high voltage street light system relies on.
To make the switch to modern street light technology, not only do the SCE transformers need to be replaced (by SCE), but the City owned circuit wiring and light fixtures must also be replaced
High Voltage System Options
5 Option 1 – SCE Takes Ownership
SCE will install wood street light poles and overhead wiring Option 2 – City replaces outdated wiring and fixtures
SCE replaces old transformers
High upfront costs to City ($35M+ to replace entire system) Option 3 - Utilize series-to-multiple (STM) transformers Allows conversion of an existing street light fixture using LED lamps Not a true energy efficient solution so limited electrical usage cost savings The electrical system will not be upgraded, so likely an extended temporary solution Option 4 – Install solar fixtures on existing poles
Tree canopy an issue
High Voltage System Status
6 Pilot Solar Project
Rolling Hills Area circuit has approximately 100 fixtures is currently dark Install solar fixtures on 25 poles
SCE to install transformer to power remaining fixtures
NORESCO
Full design to replace Richman Area circuit (approximately 100 lights) Will provide City will current costs, construction impacts, SCE cabinet locations, etc.
Bond Financing
City is exploring financing options
Initial options would provide approximately $10-12M in financing and require a 12-15 year repayment plan.
Questions