Aug 11, 2014

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Solar Mounting Systems PART 4 – Ground Mounted

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Ground mounted systems are more commonly used for medium/larger solar power systems or where the roof space is inadequate.

There is slightly more freedom with a ground mounted system as they usually start with a blank piece of land. The system can be faced in any direction and at any pitch GroundLock-20kW-rear(usually between 25° and 40°) – the aim is just to capture as much light as possible.

As a result of the solar PV panels being tilted, there is much more air flow around a ground mounted system than there would be on a roof-mounted system. This can increase performance as solar panels perform better when their temperatures are kept cooler.
Ground mounted system can also be installed as tracker systems. This means that the solar panels tilt and move so that the panel is always perpendicular to the sun. In some cases this can give you a 30% higher yield than a fixed ground mounted system.

Pole Mounted

 

Tracking systems are usually installed slightly differently – almost like its installed on a lamp post. This gives it stability  to with stand wind as per the Australia standards but also the ability to tilt and keep the solar panel at the optimal angle to the sun.

 

 

Here at Evolution Solar Sunshine Coast our preferred mounting system is GroundLock (for ground mounted, fixed position systems) and PoleLock (for tracking systems). GroundLock and PoleLock have a 10 year warranty and are compliant with Australian/New Zealand standard on wind actions AS/NZS1170.2. GroundLock has options that are pre-approved for wind regions A, B and C while PoleLock is pre-approved for wind regions A and B and is therefore suitable for installation across the majority of Australia. (Click here to see the wind regions).

 

 

Wind Power Sets Record in South Australia

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The Clean Energy Council has released figures showing that wind power met 43% of South Australia’s electricity needs during the month of July. At times during the month it even supplied 100% of demand.

“With more than 40 per cent of the state’s power demand provided by wind energy for the entire month, it is clear that large amounts of renewable energy can be added to the system without the need for extra backup generation to be built,” said Clean Energy Council Acting Chief Executive Kane Thornton. “The South Australian example shows that wind power can generate jobs and investment, as well as large amounts of renewable electricity. During a short period early in the morning of 31 July, wind power met all of the state’s power needs, as well as providing more than 90 per cent for large parts of 8 July.”

The new 275MW Snowtown II wind farm that was completed earlier in the month helped to boost the record further above their previous record of around 28%.The state also boasts 500MW’s of solar power so…

renewable energies could be powering 50% of the state!

“This technology has been a clear wind-win for South Australia, generating more than $5 billion of investment over the last decade, creating hundreds of jobs and providing the state with a cleaner power supply – at a low cost to consumers,” said Thornton.

“None of this would be possible without the national Renewable Energy Target, which is currently under review. Approximately $15 billion of additional investment will be generated by the policy if the scheme if left as it is currently legislated.”