Residential, Commercial, Industrial & Remote Area Use Grid-Connected Photovoltaic Power Generation System...

Solar Green's expertise include:

• Supply & installation of grid connected generation systems
• Supply of joint battery & grid connections
• Stand-alone rural battery systems
• Supply technical data
• Provide solar power to public areas such as street lighting, bus shelters, parks & public buildings.

ABOUT RENEWABLE ENERGY

The most common renewable energy systems used by households are photovoltaic solar panels and wind turbines. A solar cell or photovoltaic cell is a device that converts light into electricity using the photoelectric effect. The photoelectric effect is a quantum electronic phenomenon in which electrons are emitted from matter after the absorption of energy from electro magnetic radiation such as x-rays or visible light.

Photovoltaic panels have no moving parts, low maintenance requirements and can be expected to last 20 years or more. They are suitable for use in urban and non-urban areas as they take up little space and make no noise.

A wind turbine is a machine that converts the kinetic energy in wind into mechanical energy.

Wind turbines are more suited to non-urban areas and are usually used to charge a battery bank. Horizontal-axis wind turbines have the main rotor shaft and electrical generator at the top of a tower, and must be pointed into the wind. Small turbines are pointed by a simple wind vane, while large turbines generally use a wind sensor coupled with a servo motor. Most have a gearbox, which turns the slow rotation of the blades into a quicker rotation that is more suitable for generating electricity. Since a tower produces turbulence behind it, the turbine is usually pointed upwind of the tower. Turbine blades are made stiff to prevent the blades from being pushed into the tower by high winds. Additionally, the blades are placed a considerable distance in front of the tower and are sometimes tilted up a small amount.

The Commonwealth Government has introduced the Photovoltaic Rebate Program to encourage the long-term use of photovoltaic technology to generate electricity from sunlight and increase the use of renewable energy in Australia. Renewable electricity systems can be connected to the electricity power grid. If you create more energy than is needed, the meter can "run backwards" so you only pay for the difference between electricity you import and export. Excess energy can also be stored in batteries for use when the renewable source is not available.

Basic System Components

The following diagram shows the major components in a typical basic solar power system.

The solar panel converts sunlight into DC electricity to charge the battery. This DC electricity is fed to the battery via a solar regulator which ensures the battery is charged properly and not damaged. DC appliances can be powered directly from the battery, but AC appliances require an inverter to convert the DC electricity into 240 Volt AC power.

How does a residential solar electric system work?

Solar cells in the modules mounted on your roof convert sunlight directly into DC power. A component called an inverter converts this DC power into AC power that can be used in your home. The system is interconnected with your utility. During the day, if your solar system produces more electricity than your home is using, your utility may allow net metering or the crediting of your utility account for the excess power generated being returned to the grid. Your utility would provide power as usual at night and during the day when your electricity demand exceeds that produced by your solar system. Systems are also available with a battery backup. Part of the power produced by your solar system during the day is used to charge the batteries, which provide power for your critical loads in the event of a power outage.

visit: www.batterynow.com.au