The rise of residential batteries In the past year we have seen the first significant uptake of Grid Connected Battery (GCB) systems in Australia. In years gone by, batteries were used for standalone systems that were far from any poles and wires, i.e. in areas with no access to the electricity grid. However, we now […]
In many ways the rapid uptake of PV in Australia over the last decade has caused the city-based PV installer a problem: many of the easy, large area, unobstructed, north-facing roofs have already been used. Often this leaves us with “sub-optimal” installation options involving small areas where only 1-4 modules will fit, roof areas that […]
Correct isolator selection and installation is an extremely important aspect of ensuring PV systems are safe and up to standard. Through the extensive inspection work that GSES has conducted, and feedback from industry, interpreting isolator data sheets can be tricky for many installers. In response to this GSES has increased its focus on isolator selection […]
Since being established in 1998, GSES has focused on assisting the growth of Australian and international PV industries by providing quality training. GSES is recognised for its expertise in providing the training required for grid-connected PV design and install accreditation. In training many electricians and engineers, GSES has identified certain areas that prove to be […]
AS/NZS 5033:2014 states that the transition period for Power Conversion Equipment (PCE) will end on July 11th, 2015. After this date, all requirements for PCEs as described in AS/NZS 5033:2014 will be applicable. Although the changes are significant, they should come as no surprise to manufacturers of PCEs or the solar PV industry, as these […]
The significant growth of the Australian residential solar energy industry over the last 5 years (APVI, 2014) has focused attention on module quality and performance, as well as installation and safety standards. It is critical for the industry to maintain high standards so that not only are solar photovoltaic (PV) systems safe, but also customers […]
Under the Renewable Energy Target (RET) requirements, solar photovoltaic (PV) power systems must be installed to relevant Australian standards and Clean Energy Council (CEC) guidelines in order to receive Small-scale Technology Certificates (STCs). To monitor this, the Clean Energy Regulator’s RET inspection program has been running since 2010. Global Sustainable Energy Solutions (GSES) is an […]
Solar photovoltaic (PV) systems use rotary DC isolators with multiple current and voltage ratings more commonly than DC rated circuit breakers. However, the flexibility of these DC isolators introduces instances of incorrect wiring when the manufacturer’s specifications are misunderstood, resulting in DC isolators being underrated for the PV system installed. This document is written to […]
Recent updates to the Australian Standards relating to photovoltaic systems (AS/NZS 5033:2012) have led to questions about the difference between functional earthing and equipotential bonding in photovoltaic systems. This article aims to clarify what is meant when terms like earthing and bonding are used, and to briefly explain why each of these methods is needed.
Installing rooftop isolators is a requirement under AS/NZS 5033:2012. Rooftop isolators are required to ensure the safety of PV installations during maintenance and in emergency situations. However installing isolators correctly is essential if the full safety benefits are to be provided. This article clarifies the factors that installers need to consider when installing rooftop isolators.