Stonco Solar Lighting

The Absolute in Green Lighting Solutions
Stonco Solar 101

Stonco Solar 101
Solar-Powered LED Lighting Solutions
How Does Solar Work?
A Basic Solar
Lighting System

It’s All About the Sun
 The sun provides energy source to the solar panel
 Solar panels convert the sun’s energy into electricity
 Battery is charged during the day by direct-current (DC) from the solar panel
 A light source is powered by the battery each night
 The controller/driver charges the battery and avoids overcharging
 The controller/driver detects dusk and dawn, switch the light on or off as needed
How Does Solar Work?
Stonco Solar 101

A Stonco Solarized Lighting System
Stonco Solar 101

 Crystalline silicon: poly or mono
 Anodized aluminum frame
 Tempered glass is anti-reflective and impact resistant
 13% efficiency
 Nominal panel voltage (17.6 VDC & 35.2 VDC)
 Junction box for easy electrical connections
 Three main sizes (80W, 100W and 125W)
Photovoltaic (PV) Array
Stonco Solar 101

Reliable extended battery life
- Nightly discharge is 20% with 5 day back-up
- Provides between 1400 and 1700 cycles (3-5 years)
- Lifetime is dependent of depth of discharge
Maintenance-Free Construction
- Valve regulated lead acid sealed battery
- Resistant to damage from vibration
- Eliminates risk of acid leaks
- 100% recyclable
Batteries
Stonco Solar 101

Solarized Charge Controller/Driver
Stonco Solar 101
Designed to regulate power to and from the battery
- Regulates the battery charge
- Prevents the battery from over-charging
- Manages the rate of charge within acceptable range
Manages the power coming from the battery to the light
- Controls when light comes on and goes off
- Prevents the battery from running below safe levels

 LEDs use constant current drivers
 Drivers work like ballasts
 Solarize LED drivers are designed to last as long as the LEDs
Features
 No electrolytic capacitors
 All digital design
 Microcontroller controlled
 Control of power to the lights to conserve battery
 High efficacy design
Charge Controllers / Drivers
Stonco Solar 101

 MCL Medium Cutoff Roadway Luminaire
 SSM Architectural Area Luminaire
 60, 40 and 30 watt LED options
Stonco High-Performance LED Fixtures
Stonco Solar 101
MCL
SSM

Light Source
 Super long life
 Digital no filament or glass to break
 No gasses
Environmentally Friendly
 No lead
 No mercury
 All LEDs are not the same
Philips LED Technology
Stonco Solar 101

 Round tapered steel construction
 Choice of direct burial or anchor base mounting
 Effective Projected Area (EPA)
 Designed for system weight
 Rated for 100 mph wind zones
 ASCE wind exposures
 Pole tenon top bracket adapter
 Designed for local codes
Poles
Stonco Solar 101

Customizing a Solar-Powered Light System
for Your Application
 One size does not fit all
 Geographic location is critical
 Operating mode must be determined
 Stonco lighting experience a must
 The Devil is in the details
System Sizing
Stonco Solar 101

The Stonco “Solarize” Approach
Stonco Solar 101
Use the worst case to set your panel & battery size
 Longest night (longest operation) & shortest day (lowest insolation) occur in January
in the Northern Hemisphere
 The system must operate through several weeks of these conditions
 The balance of the year there is plenty of overhead
Design it right and build it right leads to happy customers
 Works every night
 Safety factors are used for safety, not standard operation
 Will survive long nights in winter
Allow for depreciation
 Solar panels lose some efficacy over time
 Panels depreciate approximately 10% in 10 years

Solar Lighting Glossary
Stonco Solar 101
Depth of Discharge:
What % of the total battery energy the system consumes per night
Amp Hours (Ah):
Maximum amount of stored energy in a battery
Operating Mode:
How the light is delivered (Dusk to Dawn, Split Night, Split Night with Dimming)
Effective Running Time (ERT):
Number of hours the light is on at night
Depth of Discharge:
What % of the total battery energy the system consumes per night
Amp Hours (Ah):
Maximum amount of stored energy in a battery
Operating Mode:
How the light is delivered (Dusk to Dawn, Split Night, Split Night with Dimming)
Effective Running Time (ERT):
Number of hours the light is on at night

Solar Lighting Glossary
Stonco Solar 101
Insolation:
Intensity of average daily sunlight in an area –in sun hours
NREL & NASA Data Sets:
National Renewable Energy Laboratory and National Aeronautics & Space
Administration collect and update data sets on insolation and weather data at a location
Watts (W):
Measurement of electrical power
Backup:
Number of nights the system will run with no solar charging

How to Select a Good Project
 Not difficult to understand
 Use practical sense in determining project type and size
 Determine system components using project zip code
 Target area free of light obstructions
Selecting a Site
Stonco Solar 101

Determine What is Workable
 Complete a site survey
 Determine what is to be illuminated
 Can the customer afford a solar lighting system
 Is there ample sunlight during the day
 Qualify wind velocities
Selecting a Site
Stonco Solar 101

Project Viability and Qualification – Common Sense Requirements
 Sun availability
 Clear southern exposure
 Be aware of heavily shaded areas
 Be aware of ambient light sources
Light Level Requirements
 Does a minimum light level need to be met
 Evaluate system operating times
 Operating light levels
 Security lighting requirements
Selecting a Site
Stonco Solar 101

Ideal
 Clear view of sky
 Open space
 Direct pole burial
Application: Playground
Stonco Solar 101
Marginal
 Excessive vegetation
 Obstructed view of sky

Ideal
 Open space
 Distant foliage
Application: Walking Path
Stonco Solar 101
Marginal
 Inconsistent clearance
 Possible sunlight obstructions
 Can use direct burial pole
Not Acceptable
 Dense vegetation
 Obstructed view of sky

Application: Parking Lot
Stonco Solar 101
Ideal
 Costly trenching
 Potential safety issues
Ideal
 Distant vegetation
 Good business type
Ideal
 Low height desert scrub
 Consistently sunny
 Few obstructions

Application: Parking Lot
Stonco Solar 101
Marginal
 Possible building shadows
 Electricity available
Not Acceptable
 Close to tall buildings
 Limited sunlight from
building shadows
Not Acceptable
 Present grid lighting
 Not practical for solar

Ideal
 Open area far from obstruction
 Limited access to grid power
Application: Recreation
Stonco Solar 101
Marginal
 Reasonably good view of sky
 Open areas
 Possible mountain shadow

Not Acceptable
 Clear view of sky, however,
 Sports require high light levels
Application: Recreation
Stonco Solar 101
Not Acceptable
 Very limited view of sky
 Too many obstructions

Ideal
 Remote location
 Limited illumination requirements
Application: Roadway
Stonco Solar 101
Marginal
 Higher illumination requirements

Not Acceptable
 Roadway requirements remain high
Application: Roadway
Stonco Solar 101
Not Acceptable
 Never meet federal guidelines of
less than $10,000
 Roadway requirements remain high

Ideal
 Remote location
 Ideal for path and sign lighting
Application: Monument
Stonco Solar 101

 Product Development
 Evolution of Smart New Lamp & Ballast Technologies
 Deliver New Standards in Energy Efficiency, Performance
 Environmentally Friendly Lighting Solutions
Stonco’s Commitment & Endorsement
Stonco Solar 101

Stonco Solar Lighting

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