The future of street lighting 

Technical Specs 

Panels

High efficiency, poly-crystalline panels are used in all the GreenStreet systems. Sizes can vary depending on the location and the light fitting used but in a typical installation a single 100watt panel is used. This panel over the year in an average Australian location will generate around 150 kwhrs of power that otherwise would need to be provided by the normal grid. Panels use state of the art technology, are manufactured in Australia and come with a 20 year guarantee.

The size and number of the panels are chosen in order that the amount of energy generated in normal applications over the full year is balanced to the energy used in powering the light.. This means that the system generates more power in the summer (when demands on the grid are the highest) and less power is generated in the winter when the surplus energy is “borrowed" back from the grid. This helps balance the energy demands of the power supply and can help reduce peak loads. This can be a significant effect as most energy is generated from the solar panels on bright sunny days which happens to occur when the grid is under it’s highest loading from air-conditioning loads. As we are all aware this has caused severe brown out problems in other developed countries and is something that we in Victoria, Australia came close to last year. While a single installation may not be all that significant, if all the new street lights in Australia for a single year (estimated at around 40,000 in a typical year) were converted to GreenStreet technology then it would be the equivalent of adding 4 megawatts of peak power to the grid and would over the year save many hundreds of tons of CO₂ emissions.

In some applications where very high light levels are required, the energy generated may not be sufficient to fully balance energy use. In these cases of complimentary supply, the benefits of load matching are still achieved and the net energy drain reduced.

Electronics

The electronic system consists of a full sine wave grid interactive 240VAC inverter approved in Australia for connection in grid interactive solar systems. This inverter is  controlled by a monitoring system that both monitors the energy balance of the system, switches on and off the light system and monitors total system operation. The diagram above shows how the system works. 

Light Fitting

A wide range of light fittings can be used to match existing systems or allow standardization with other systems. 

Bulbs

While any bulb system can in theory be used, in keeping with the philosophy of the GreenStreet Program we prefer to only use the highest efficiency bulb systems powered by Sunlight Solar designed and built or approved inverters.  A recent advance is to use very energy efficient lighting systems based on the use of latest LED technology to further reduce energy demands, decrease costs and improve environmental benefits.

Steel Work

The pole and frame system comes in a range of designs. All steel work is hot dipped galvanized for long life and made to the highest quality standards. Steel work is designed to meet the requirements of local weather conditions and authority requirements. We also have skills in manufacturing in other materials such as Stainless steel or aluminium. We can provide a full engineering design service to meet any special needs. Easily maintained self-erecting systems are available.

Installation can be either in-ground or mounted on holding down bolts. 

Coating

Sunlight Solar Systems (Australia) Pty Ltd
PO Box 472,   North Geelong. Victoria. 3215
Australia.            ACN: 064 122 023

Phone +61 (0)3 5221 2000
Fax:     +61 (0)3 521 2013

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