What size investment is required?
In the past, a high percentage of the price of a system was determined by the solar panels, based on $ per watt. At one time this was over $10/w. Nowadays the price for solar panels has dropped as new manufacturers start up, and silicon & manufacturing costs reduce.
Systems used to require an investment of around $10/w installed, after subsidies/cash back, so a 5kW system was around $50,000 installed. The inverter equipment, being all Transformer based, meant that PV panel technology was important for better performance.
Today, PPS uses inverter equipment that is so far advanced from these traditional inverters that we can monitor every panel on your system remotely, and alert you to any potential faults or defects before there is noticeable losses of performance. Reports & graphs can be generated off web based GUI's, and individual components can be pin pointed for inspection when maintaining the system.
When the decision to go Solar is made, the next question is: How do I make sure I'm getting value for money?
When I am assessing the market for products, I consider what job I want it to perform, and how reliable it needs to be. If I can get good quality & performance for a good price, I'm happy, and our customers benefit from this. By operating in this way, our customers achieve excellent value for money with every PPS system investment.
When reduced array space is an issue, a higher efficiency solar panel is a necessity as it will yield the most amount of power per square meter.
Does this then mean that a lesser panel should be used when there is ample space? The answer is actually quite revealing.
Typically, the reason high performance panels are good, is due to the technology of the cell. Results from numerous international test sites, where a range of brands & cell technology have been running side by side for years, have shown that good cell efficiency can not only yield more power per square meter, but usually also capture more solar energy per kilowatt of cells.
For example - Amorphous or "Thin-Film" technology, while much cheaper to purchase in the past, needs more than triple the number of panels for the same output that Mono-Crystalline requires. The savings that may be made on the purchase is lost in the significant extra materials & works required to install the system. Now-days, as the price of silicon has come down, the Mono & Multi crystalline panels tend to be the more economical modules.
Time also shows an Achilles Heel with Thin-Film, called the Staebler-Wronski effect.
Typical Thin-Film modules lose 30% efficiency in the first 6 months of operation, and degrade faster than Mono-Crystalline technology.
As a system owner you want to make sure you are getting quality equipment for your investment. Ask yourself a few simple questions, such as:
1. “Am I dealing with a simple salesperson or a technical expert?”
2. “What features, after sales support & warranty does this system have when compared to the competition?”.
PPS systems balance price with performance, so you aren't paying 100% more for PV panels & inverters that perform 5% better. Due to our understanding of the advanced equipment available, our systems will yield a greater output for your dollar. Be confident that a PPS system is combining the most up-to-date technology for a lifetime of consistent performance.
Currently, PPS can supply single & three phase conventional string inverters, Micro-Inverter and AC module systems, and DC Optimizer systems for Grid Connect.
All types have their target applications.
Self Use options are now available for Grid Connect systems, allowing storage & retrieval of your own solar power generation, along with UPS style features, maintaining power in the event of a mains supply failure. For Clients with foresight PPS can build a system that eliminates ever paying for retail power again.
For Stand Alone systems, we can supply single, two and three phase inverters with battery options from 12 to 120 Volts DC, plus solar, wind, hydro and generator support.