The grid energy storage market is buzzing and many new technologies are being thrust from the research and development realm into the commercial space. The question of which technology is going to be the big winner for the energy storage revolution is a discussion mired in speculation and clouded with preconceptions. However, it may just […]
Tag: residential
DC Isolators: What are the Manufacturer’s Specification Sheets Really Telling You (ONLY VALID UNTIL DATE OF PUBLISHED)
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 […]
Understanding Earthing
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.
Sealing Roof Penetrations
Roof penetrations for PV systems are often the most difficult parts of installing a PV system, especially on tile roofs. Installations on tile roofs typically require grinding out the underside of numerous tiles for the mounting feet and then having to drill holes for cable entries, then to properly seal these holes can seem tedious […]
Oversizing PV Arrays
‘Array oversizing’ refers to solar photovoltaic (PV) systems that have been designed so that the solar array has a higher peak capacity than the inverter. A solar system of a given installed capacity under irradiance consistent with Standard Test Conditions, may actually deliver up to 20% less than the nameplate rating of the solar array. […]
Potential Induced Degradation (PID)
Potential Induced Degradation (PID) is a process that occurs in photovoltaic (PV) cells when the system has a negative potential relative to the ground. As a result, the PV module’s efficiency decreases over time. Although PID is a relatively new concept and is not widely understood, techniques already exist to minimise its undesirable effects. The […]
GSES releases a technical paper “Localised Networks and Demand Side Participation in the NEM”
Global Sustainable Energy Solutions Pty Ltd (GSES) has released a technical white paper, entitled Localised Networks and Demand Side Participation, covering the issue of the rise of embedded networks; how they can transition into micro grids and topological power plants, and also provide demand reduction in the National Electricity Market (NEM). The article explains what […]
GSES’ Professional Development courses for 2016 now available
Since October 2014, Global Sustainable Energy Solutions Pty Ltd (GSES) has been running a Continuous Professional Development (CPD) training day for accredited solar installers. Due to the success of these courses, GSES had developed a new set of three courses for 2016. The GSES CPD program offers installers the opportunity to complete all of their […]
New tech article about Professional Development in the Energy Storage Industry
GSES has released a new tech article about Professional Development in the Energy Storage Industry and who needs it? The ever increasing publicity and media surrounding ‘Energy Storage’ is promulgated by all sectors of the energy market: industry journalists, network operators, energy retailers, equipment retailers, wholesalers, system designers and installers. What training is currently available […]
New tech article about : I got 99 problems and a switch ain’t one!
GSES has released a new technical article about correct isolator installation and selection 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 […]