Efficient Off-grid Power for Solar Streetlights and

Traffic Applications in Asia

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Content

1. Phocos, the company

2. Current situation and requirements of the Asian market

3. Solution for solar street and traffic lighting

4. Reference projects in China

5. Conclusion

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Worldwide Network: 13 Offices

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Our Core Business: Charge Controllers

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The Core of PV-systems: Charge Controllers

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Market Situation in Asia

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Rural Electrification in Asia

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Street Lighting

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Current Market Situation in China

• China has a population of 1.4 billion people, huge energy resources are

necessary

• Economy is increasing at approximately 9 % per year, therefore energy

demand will grow proportionately

• There is a big dependency on fossil fuels, 55% of which is imported, but

these resources are limited resulting in global warming and high carbon

dioxide emissions

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Increasing Energy Demand in China

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Importance of Renewable Energy

There is a reconsideration into how energy is produced:

• Increasing pressure of environmental protection and energy saving

• More energy independence by using renewable energy

• China's target is to increase its renewable energy share of the energy

market to 15 % by 2020

• Solar energy will make a great contribution

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Solar Solutions

Beside on-grid, solar off-grid applications are becoming more popular

as they offer easy and flexible solutions:

• Quick installations, no trenching necessary

• Laborious installation work and investment costs can be decreased

• Flexible and individual solutions

• Reliable system design and long operating lifetime (use of LED lamps)

• More energy independence from fossil energy resources

• Cost and energy saving, eco-friendly, sustainable

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Applications

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Ideal for solar street lights and for traffic markets:

• Solar street lights

• Traffic lights

• Signal lights

• Parking meters

• Advertising signs and

billboards

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Intelligent Lighting Control in Off-Grid Scenarios

For intelligent and reliable lighting control Phocos has developed a highly

efficient Charge Controller series for lighting applications: The CIS-series

Users benefit from reliable system design with extended lighting time and

special night light features:

• Timer and automatic night light recognition; light can be switched on and off

at sun rise or dawn

• Dual Load or dimming output for two loads or individual dimming settings

• Individual lighting concepts for different needs are available

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Intelligent Lighting Control Scenarios

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Continious

operation:

Lighting

at night:

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Intelligent Lighting Control Scenarios

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Morning/evening

hours:

Reference

dusk/dawn

Morning/evening

hours:

Reference

middle of night

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Charge Controller: CIS Series

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Features CIS Series

• Robust and fully encapsulated aluminum housing (IP 68), water and dust

resistant, withstands harsh environments

• Works reliably under all climate conditions

• No openings and moving parts like switches or buttons

• Small, compact size, fits anywhere

• Night detection and timer functions, dimming control or dual load outputs

• Infrared remote control programming accessory (CIS-CU)

• Different versions available: CIS-N (negative grounded), CIS-LED (with

integrated LED driver), and CIS-MPPT (with MPPT tracker)

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Reference Projects

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Reliable Highway Monitoring

LocationShandong province, China

ChallengeRemote management of PV operation through RS232

SolutionPhocos installed this PV system to provide solar energy to a highway supervision system for traffic management. Within this system Phocos charge controllers are used to provide information about battery voltage, charging current, etc.

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Solar Street Lights as Cost Efficient Solution

Location Beijing rural area, China

Challenge• The project was started in 2006 but

stopped due to high costs • Then it was decided that it would

be able to continue with solar energy

SolutionSince 2006, more than 150.000 solar street lights were installed during the "New Village Construction“ project

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Solar Street Lights for Rural Regions

LocationKunming, China

Challenge• Low financial budget for village areas• Solar street lamps were installed

directly to the house or gate wall

SolutionThis project provides night-time lightingfor Yunnan villages. Low cost wasimportant due a limited investmentbudget. Direct mounting of the solar systems are a cost-effective solution.

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Solar Street Lights for an Important Airport Connector

LocationHeilongjiang province, China

Challenge• Dedicated environmental protection

area • Extreme temperatures in this area

(range from -40 to +60 degrees)

Solution300 solar street lights equipped withPhocos CIS charge controllers havebeen installed along the 9.2-kilometerroad that goes to the importantairport in the Hegang district of Xing´an.

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Conclusion

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Conclusion

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Off-grid solutions in Asia are becoming more popular. Users benefit from:

- Reliable energy availability (in regions without grid connection)

- Independence from fossil fuel energy resources

- Decreased installation costs, no trenching necessary

- Reliable and individual lighting solutions

for example solar street lights, traffic lights, etc.

- Solar street light application increases road safety

at night, also in remote areas

- Sustainable and eco-friendly energy resource

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Thank you for your attention!