Green energy is any energy type that is generated from natural resources, such as sunlight, wind, or water. It often comes from renewable energy sources although there are some differences between renewable and green energy, which we will explore, below. The key to these energy resources is that they don’t harm the environment through factors such as releasing greenhouse gases into the atmosphere. To increase the usage of renewable and clean energy by optimizing and encouraging the use of renewable energy in building and transport in Putrajaya.


Green energy often comes from renewable energy technologies such as solar energy, wind power, geothermal energy, biomass, and hydroelectric power. Each of these technologies works in different ways, whether that is by taking power from the sun, as with solar panels, or using wind turbines or the flow of water to generate energy.

In order to be deemed green energy, a resource cannot produce pollution, such as is found with fossil fuels. This means that not all sources used by the renewable energy industry are green. For example, power generation that burns organic material from sustainable forests may be renewable, but it is not necessarily green, due to the CO2 produced by the burning process itself.

Green energy sources are usually naturally replenished, as opposed to fossil fuel sources like natural gas or coal, which can take millions of years to develop. Green sources also often avoid mining or drilling operations that can be damaging to ecosystems.

Encouraging the use of Energy Efficient Lighting Fixtures for Offices and Public Facilities

Encouraging the Use of Solar Photovoltaic for Government Office Buildings and Houses

Solar Photovoltaic Technology

Photovoltaics gets its name from the process of converting light to electricity (voltage), which is called the photovoltaic effect. Solar cell made from silicon that generated an electric current when exposed to sunlight. Solar cells were soon being used to power space satellites and smaller items such as calculators and watches. Today, electricity from solar cells has become cost-competitive in many regions and photovoltaic systems are being deployed at large scales to help power the electric grid.

Silicon Solar Cells

The vast majority of today’s solar cells are made and offer both reasonable prices and good efficiency.  These cells are usually assembled into larger modules that can be installed on the roofs of residential or commercial buildings or deployed on ground-mounted racks to create huge, utility-scale systems.

Thin-Film Solar Cells

Another commonly used photovoltaic technology is known as thin-film Solar Cells because they are made from very thin layers of semiconductor material, such as cadmium telluride or copper indium gallium diselenide. The thickness of these cell layers is only a few micrometers.

Thin-film solar cells can be flexible and lightweight, making them ideal for portable applications such as use in other products like windows that generate electricity from the sun. Some types of thin-film solar cells also benefit from manufacturing techniques that require less energy and are easier to scale up than the manufacturing techniques required by silicon solar cells.