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Mount Tomah is a cool-climate garden covering 28 hectares in the world heritage listed Greater Blue Mountains. The facilities at The Visitor Centre in the heart of the Garden include a restaurant, gift shop and function rooms.
Key facts about this Warehouse Solar System Project:
|Client:||Mount Tomah Visitor’s Centre|
|Date Completed:||August, 2011|
|Solar system peak capacity:||11.37kW|
|Module:||33 x Schott 290W Poly, 6 x Schott Double Glass|
|Inverter:||1 x SMA SMC 10000TL, 1 x SMA Sunnyboy 5000TL|
|Green savings:||20.9 tonnes of emissions per annum|
|Solar electricity generated:||19 MWh per annum|
In November 2010 Solgen Energy was approached by the Botanic Gardens to provide a proposal for the supply, design and installation of a photovoltaic system on the Visitor Centre’s roof. The Centre was looking to make the best use of available funding to lower its energy costs and reduce its carbon footprint.
The location of the Visitor’s Centre is within an area subject to high lightning strikes which needed to be considered within the design.
Solgen Energy designed a 9.57kW system that would best utilise the available roof space and infrastructure of the Centre. The system comprises of 33 Schott Solar Double-Glass Polycrystalline 290W modules in combination with an SMA SMC 10000TL- 10 inverter.
The system’s electrical design included additional surge protection circuitry to protect the system in the event of a lightning strike on the array.
The array was mounted on flush framing against the roof sheeting at an offset of approximately 100 to 150mm to the roof.
The installation of the 9.57kW system was completed in May 2011. In August 2011 a 1.8kW extension was added to the existing system. This extension consisted of 6 Schott Solar Double Glass Polycrystalline 300W modules and an SMA SB5000TL-20 inverter. At the request of the Blue Mountains Botanic Gardens, Solgen Energy designed the extension with an oversized inverter to allow for the future addition of modules.
An SMA Sunny Webbox monitoring system and Weather Station was included with the installation for the visualisation of real-time generation data and the monitoring of environmental conditions relevant to the performance of the PV system.
The solar photovoltaic system installed represents a carbon neutral, cost effective and low-maintenance solution to reduce the Visitors Centre’s electricity costs and subsequent carbon footprint. The system is expected to generate 19 Megawatt hours of electricity per annum and avoid the emission of 20.9 tonnes of carbon dioxide annually.
The system demonstrates the Visitors Centre’s commitment to climate change action and sustainability practices in keeping with the overall conservation and environmental aims of the Botanic Gardens.