Grid Connect Solar

Posted by solardirectonline02 on June 16th, 2018

Solar power in its various forms can certainly be confusing if you’re new to the world of renewable energy. Below is our solar power FAQ where answers to common questions we see asked about solar power in relation to residential grid connect systems. This solar power FAQ is divided up into sections of different interest, such as climate, installation and general questions.

What is a grid connect solar power system?

Grid connect systems, often located in built up areas, supply solar electricity through an inverter directly to the household and to the electricity grid if the system is providing more energy than the house needs. When power is supplied to the mains grid, the home owner usually receives a credit or a payment for that electricity. This is called a feed in tariff.

 

What can affect the amount of solar energy received?

The strength of the solar energy (radiation) available depends on the time of year, the time of day, and the latitude of the generation point. The amount of energy generated can be further affected by the amount of dust and water vapour in the air, the amount of cloud cover and any shading of the solar panels and the quality of the solar modules. You can learn more about solar radiation levels for your area in our solar power system builder.

Does roof orientation really matter?

Most certainly. For example, a system with solar panels facing in a southerly direction will generate far less than one with a northerly aspect. However, east/west installations can be a good option depending on the installation scenario.

What is a feed in tariff and how much will I get paid?

A feed in tariff is whereby a grid connect system owner is paid for the electricity their system generates by a utility or government agency. There are two different types of tariffs, gross and net. A gross feed in tariff pays a premium on all electricity produced whereas a net feed in tariff only pays on surplus energy created by the system. In Australia, net feed in tariffs are predominant.

What size system will I need to run my home?

That entirely depends on your energy usage and your geographical location. A 1.5 kW system is currently the “entry point” for grid connect.It will cover between 16 and 25% of the energy consumption of a medium household. A 4-5 kW system will cover 100% of the energy consumption of a medium energy use household. Learn more about solar power system sizing.

Any size grid connect solar power system will reduce your yearly power consumption and your power bill. Naturally, the bigger the system, the bigger the benefit.

To make the most of solar power, the key is to implement simple energy efficiency strategies. It is easy to conserve energy by using appropriate lighting and efficient appliances. Running high power appliances such as electric bar heaters, electric hot water systems and air conditioners etc. is really not economical.

Instead of considering a very large solar system; you can also invest in energy efficient heaters, solar hot water and design features such as strategically placed vents or insulation to avoid heat entering the house in the first place. In summary – all your energy can be supplied by solar power and your budget and daily energy usage will determine the size of your solar power system.

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