FAQ | Off-Grid Energy Stuff


There are three main components to a PV (Solar system) which include;1) Solar panels; Simply put, a solar panel works by allowing photons, or particles of light, to knock electrons free from atoms, generating a flow of electricity. Solar panels actually comprise many, smaller units called photovoltaic cells. (Photovoltaic simply means they convert sunlight into electricity.)2) Charge Controllers control the amount of charge that is passed through to the inverter, possibly to a battery or storage unit as well3) Inverters; A solar inverter, or converter or PV inverter, converts the variable direct current (DC) output of a photovoltaic (PV) solar panel into a utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network.
A well designed, installed and maintained solar system will last you up more than 25 years. We know this because solar has been used in defence, aerospace and government installations for many years.
The maintenance is done through All-Star Energy Solutions; maintenance should be carried out no more than every 2-3 years. This ensures that the system is operating correctly and safely and provides peak performance throughout its lifetime.
Solar power systems work by converting sunlight and although they perform best in clear skies, even in less than optimal conditions of low or filtered light they normally operate quite well throughout the day most of the time. We use industry standard calculations that consider these factors when sizing systems and estimating savings.
This will be determined; depending on the hours of operation, the roof size, what kind of business it is, if you have a current electricity bill we can use the usage and KW’s used to determine the solar system. We will determine the optimal system size based on a number of factors including the nature of the business and hours of operation, roof area and orientation, shading, and historical consumption figures which can be obtained from your electricity bill or metering data
Installing solar power will guarantee savings as it is producing electricity at low or zero cost, that is being consumed instead of grid power. Savings start from the time of commissioning the system and last the operational life. Imagine, generating free electricity from the sun for many years.
PPA means Power Purchase Agreement. Unlike a finance contract, under a PPA Allstar provide the system at no cost or interest to the client, and is owned and maintained by Allstar’s provider. Under the Agreement the client purchases the power produced by the system at a lower cost that they would from their current electricity provider.So think of it as an energy plan, just using solar to produce electricity at your business rather than the Grid. Additionally, clean renewable energy brings sustainability benefits to your organization.
Every property and business has different circumstances. Allstar will provide a detailed assessment and recommendations and an estimate of likely savings based on established modelling.
Secondary protection injection testing, sometimes referred to as “witness testing”, is performed by connecting an injection test unit (trip device, over current module, protection device, OCR, ETU) to a PV solar system to simulate a current overflow causing the protection relay to trip, and cut the flow of electricity back into the grid. During the test, a multitude of scenarios is performed on the trip unit to prove the circuit breaker works within different tolerances of simulated current.
Secondary protection is now an Australian Standard regulation for all PV solar systems 30kVA and greater. To ensure correct operation of secondary protection devices, injection testing needs to be carried out for electricity distribution compliance. This ensures excess current is not being fed into the grid. As more households and businesses build capacity to generate their own power, these safeguards are paramount to protecting the grid from oversupply.
AS/NZS 4777:2015 – The standard states that any system 30kVA and greater now requires secondary protection devices on inverters that have power flow in either direction between the energy source and the grid.
HEAD OFFICE​ Address: Level 7/ 303 Collins Street Melbourne Vic 3000 Call Us: 1300 794 005 EMAIL US: info@allstarenergy.com.au OPENING HOURS- 9am-5:30pm Monday – Friday