Knowhow...
iEnergytech invests significantly in research, development and the training of its people. In June 2012, Udayan Bhanot of iEnergytech attended hands-on training in Germany...
With Andreas Johanson, trainer at SMA, Kassel, Germany where he attended an intensive offgrid-design training session.
At the inverter-communications' training held in Kassel, Germany.
Intensive SMA central-inverter training, Kassel, Germany.
Central inverter training with Cesar Villalta, trainer at the SMA Training Academy in Kassel, Germany.
Training covered the design and commissioning of plants over MW-scale using SMA's central inverters ranging upto 1MW.
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Tailor-made solutions
Every project is unique. some of the key considerations are...
Usage Level and Efficiencies...
Usage patterns for at least 4 seasons are examined; a list is prepared of all major electrical appliances in the site.
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Suggestions are made to help reduce your energy consumption, and to show you how to measure their energy consumption e.g. by using an energy meter as above.
Roof Space...
Orientation to true north: Precise measurements are taken of the exact compass bearing of your roof and its deviation (also called magnetic declination) from true north. True north in Melbourne is about 11.7 degrees west of magnetic north, and changes over time.
Optimized designs... What is the ideal pv-array / inverter match? How can we achieve the highest level of efficiency of the system without compromising longevity? What is the specific energy of the area and how does this affect inverter sizing? These are the next considerations.
A solid base for the PV plant
iEnergytech exclusively uses Schletter GmbH racking systems. Sturdiness and efficiency are enhanced by carefully selecting from Schletter's range.
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Mono crystalline, poly crystalline or thin-film
Careful consideration is given to which technology is the most appropriate given the available roof space, aim of the project and budgets involved....
Shade Assessment...
Shade is the single most detrimental factor to the performance of a solar photo-voltaic system. A sophesticated tool, the SunEye 210 is used to assess for shade...
Photographs are taken from different positions of the roof using this instrument, solar paths unique to your geographical location are overlaid, and evaluations carried out to ensure that the roof is viable for solar photo-voltaics.
Here (above) we see that there is some shade during the early morning hours in the east (on the right-hand side) and less so in the west (left-hand side). This information is processed using a special software to work out the exact effect such shading will have on annual yield.
The ideal location is identified (above).
A yield report analysed by month assists the customer in assessing the peformance of the actual solar PV plant.
These yield reports take into account the exact shade, azimuth, pitch and weather conditions relevant to your particular site.
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Correct tools: Using proper wire strippers, crimpers, and torque tools (all made in Germany) ensures that the electrical joints are secure and allow maximum currents to flow through for the duration of the life of the system. The result: safety and optimal yields...
Correct torqueing: Every nut and bolt is torqued to the manufacturer's specifications, using 1% accurate Hazet tools, resulting in a high level of safety...
Tightening electrical screws to the correct torque is a mandatory requirement in many countries such as the USA and Germany. We use Hazet and Weidmuller tools for this...
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Quality consumables...
"the strength of a chain is only a good as the weakest link". Only genuine MC4, Tyco, Huber & Suhner or Yamaichi connectors are used...
Aesthetics
“Where the Spirit does not work with the hand, there is no art” Leonardo Da Vinci...
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Safe Work Practices...
All lifting of modules onto the roof, especially for difficult two-storey and higher sites is done using a mechanised panel lifter. This also ensures that panels are not inadvertently damaged during this stage.
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Workmanship...
Every aspect of work is considered to ensure a high-quality finish...
- Our Designers undergo regular training with the industry leaders here in Australia and in Europe (Germany in particular).
- All our installers have extensive experience: Apart from their many years of electrical experience both on the domestic and commercial front, they also have a well-established track record in solar PV installations and play a crucial role in our continued R&D and systems' improvement.
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Maintenance...
iEnergytech offers services such as IV-traces to ensure that modules are working as per manufacturer's specifications.
Here (above) is an example of a faulty module, which can only be picked up with an IV-trace...
Cleaning and re-torquing services: An annual check is carried out to ensure that all the connections are secure, earthing is intact, the modules are working as per manufacturer's specifications and they are clean.
Infra-red testing
Using Testo's advanced 885-2 30mK sensitive camera, IR testing offers a simple yet non-invasive approach to testing PV systems.
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User Manual
Every Solar PV system is supplied with a user manual based on evolving industry best-practice standards.
Manual includes:
- Electrical Schematic
- Inverter design paramenters
- Serial numbers of all equipment
- Warranty paperwork
- Yield report using the SunEye 210
- Copies of the EWR, CES and Solar Connection Form (the legal paperwork)
- Copy of the STC assignment form
- A unique user manual showing stut-down procedures, maintenance procedures, etc.
- Commissioning Report
- Manuals for individual components
- An iEnergytech Quality-Control checklist showing torque settings met; crimps completed; wire strip checks, etc.